Apparatus and methods for treating obstructions within body lumens
57 claims: 13 independent, 44 dependent
- 1体の管腔を処置する装置であって、 近位端、体の管腔内への導入のためのサイズを有する遠位端、並びに、前記近位端及び前記遠位端の間で延びる第1内腔、を有する外側部材と、 前記外側部材の遠位端に固定される近位端、及び、出口を備える遠位端、を備える拡張可能なバルーンであって、前記第1内腔及び当該バルーンの出口と連通する内部を備えるバルーンと、 前記第1内腔内にスライド移動可能に配置される内側部材であって、前記外側部材の近位端に隣接する近位端、及び、前記バルーンの出口から延びる遠位端、を備える内側部材と、 前記内側部材の遠位端上のシール部材であって、前記第1内腔を通って導入された流体が前記バルーンの内部を通って前記バルーンの出口から流出するように当該シール部材が前記バルーンの出口から間隔を空けて配置される第1位置と、前記第1内腔を通って導入された流体が、前記バルーンを拡張させるために前記バルーンの内部に流入するように当該シール部材が前記バルーンの出口を実質的にシールする第2位置と、の間で前記内側部材が移動可能である、シール部材と、 前記バルーンの遠位端内のばね止めと前記内側部材の遠位端との間で、前記第2位置に向かって前記内側部材を付勢するためのばね要素と、を備えることを特徴とする装置。
- 2請求項1に記載の装置において、前記外側部材の近位端上のハンドルと、前記バルーンの出口を開放するために前記第2位置から前記第1位置に前記内側部材を案内するための前記ハンドル上のアクチュエータと、をさらに備えることを特徴とする装置。
- 3請求項2に記載の装置において、前記ばね要素は、前記アクチュエータが解放された時に前記第1位置から前記第2位置に前記内側部材を自動的に案内するために付勢されることを特徴とする装置。
- 4請求項2に記載の装置において、前記アクチュエータは、前記第2位置から前記第1位置に前記内側部材を案内するために前記ばね要素の付勢力を克服するように構成されていることを特徴とする装置。
- 5請求項2に記載の装置において、前記内側部材は、細長部材を受け入れる前記内側部材の近位端及び遠位端の間で延びる第2内腔を備えており、前記ハンドルは、前記第2内腔に受け入れられた細長部材の一部を固定するために前記ハンドルの外面上に保持装置を備えることを特徴とする装置。
- 6請求項1に記載の装置において、前記内側部材の遠位端は、前記内側部材が前記第1位置にある時に前記バルーンの内部から前記バルーンの出口を通って流体を運搬するために前記内側部材と前記バルーンの出口との間に環状内腔が画定されるように、前記バルーンの出口よりも小さい断面を有することを特徴とする装置。
- 7請求項1に記載の装置において、前記内側部材は、前記外側部材の近位端から前記バルーンの内部内に流体を運搬するために前記内側部材と前記外側部材との間に環状内腔が画定されるように、前記第1内腔よりも小さい断面を有することを特徴とする装置。
- 8請求項1に記載の装置において、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位先端は、前記出口のシールを容易にするために前記内側部材が前記第2位置にある時に前記シール部材と前記遠位先端との間の表面接触を最大化するように構成されていることを特徴とする装置。
- 9請求項1に記載の装置において、前記シール部材は、テーパ形状の近位端を備えており、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位先端は、前記シール部材の前記テーパ形状の近位端を内部に受け入れるために前記バルーンから外側に離れて広がるために偏向されることを特徴とする装置。
- 10請求項1に記載の装置において、前記シール部材は、テーパ形状の近位端を備えており、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位先端は、前記第2位置で前記シール部材の前記テーパ形状の近位端を内部に受け入れるために前記遠位先端が弾性的に拡張するように可撓性材料を備えることを特徴とする装置。
- 11請求項10に記載の装置において、前記遠位先端は、前記シール部材を前記バルーンの出口から離れるように移動させるために前記第2位置から前記第1位置に前記内側部材が案内される時にその原形のサイズに向かって弾性的に復帰するように構成されることを特徴とする装置。
- 12請求項1に記載の装置において、前記内側部材は、前記シール部材を越えて前記内側部材の遠位端から遠位に延びる湾曲した遠位先端を備えており、前記遠位先端は、細長部材が前記内側部材及び前記遠位先端を通って導入される時に前記遠位先端がほぼ真っ直ぐにされるように弾性的に可撓性を有しており、前記遠位先端は、前記細長部材が前記遠位先端から移動させられる時にその湾曲した形状に向かって弾性的に復帰することを特徴とする装置。
- 13請求項1に記載の装置において、前記バルーンの遠位端と前記第2位置の前記シール部材との間の摩擦を低減するために前記バルーンの遠位端の少なくとも一部の内面上に被覆をさらに備えることを特徴とする装置。
- 14請求項1に記載の装置において、前記シール部材は、前記内側部材の遠位端から延びる円錐頭を備えており、前記円錐頭は、傾斜した遠位先端を有することを特徴とする装置。
- 15体の管腔を処置する装置であって、 近位端、体の管腔内への導入のためのサイズを有する遠位端、並びに、前記近位端及び前記遠位端の間で延びる第1内腔、を有する外側部材と、 前記外側部材の遠位端に固定される近位端、及び、出口を備える遠位端、を備える拡張可能バルーンであって、前記第1内腔及び前記バルーンの出口と連通する内部を備える拡張可能なバルーンと、 前記第1内腔内にスライド移動可能に配置された内側部材であって、前記外側部材の近位端に隣接する近位端、及び、前記バルーンの出口から延びる遠位端、を備える内側部材と、 前記内側部材の遠位端上のシール部材であって、前記第1内腔を通って導入された流体が前記バルーンの内部を通って前記バルーンの出口から流出するように当該シール部材が前記バルーンの出口から間隔を空けて配置される第1位置と、前記第1内腔を通って導入された流体が、前記バルーンを拡張させるために前記バルーンの内部に流入するように当該シール部材が前記バルーンの出口を実質的にシールする第2位置と、の間で前記内側部材が移動可能である、シール部材と、 前記バルーン内で前記内側部材に固定される中間部分、前記中間 部分 から近位に延びる近位部分、及び、前記中間部分から遠位に延びる遠位部分、を備えるばね要素であって、前記遠位部分が前記バルーンの遠位端に結合されており、それによって、前記第2位置に向かって前記内側部材を付勢する、ばね要素と、 前記外側部材の遠位端に結合された第1端及び前記ばね要素の前記近位部分に結合された第2端を備える螺旋部材であって、前記螺旋部材は、前記バルーンの内部内で前記内側部材周りに螺旋状に延び、前記内側部材は、半径方向外側に前記螺旋部材を拡張させるために前記外側部材の遠位端に向かって前記内側部材の遠位端が案内される第3位置に移動可能であり、拡張螺旋形状を画定するために前記バルーンが前記螺旋部材上に重なる、螺旋部材と、を備えることを特徴とする装置。
- 16請求項15に記載の装置において、前記拡張螺旋形状の前記螺旋部材の形状に前記バルーンがほぼ一致するように、前記第3位置に前記内側部材が案内される前に前記バルーンを折り畳むために前記第1内腔と連通する真空源をさらに備えることを特徴とする装置。
- 17請求項15に記載の装置において、前記螺旋部材が前記バルーンの内部内で螺旋状に拡張するように、前記第3位置に前記内側部材が案内される前に前記バルーンを拡張させるために前記第1内腔と連通する膨張媒体源をさらに備えることを特徴とする装置。
- 18請求項17に記載の装置において、前記拡張螺旋形状の前記螺旋形状の形状に前記バルーンがほぼ一致するように、前記第3位置に前記内側部材を案内した後に、前記バルーンは収縮可能であることを特徴とする装置。
- 19請求項17に記載の装置において、前記バルーンの過度の拡張を防止するために前記内側部材が前記第3位置に案内される際に前記バルーンの内部内から流体を解放するために前記第1内腔と連通する安全弁をさらに備えることを特徴とする装置。
- 20請求項15に記載の装置において、前記バルーンの遠位端は、前記内側部材が前記第3位置に移動させられる時に前記バルーンの近位端に向かって案内され、それによって、軸線方向に前記バルーンを圧縮することを特徴とする装置。
- 21請求項20に記載の装置において、前記バルーンが軸線方向に圧縮される際に前記バルーンの過度の拡張を防止するために前記第3位置に前記内側部材が案内される際に前記バルーンの内部内から流体を自動的に解放するために前記第1内腔と連通する安全弁をさらに備えることを特徴とする装置。
- 22請求項15に記載の装置において、前記バルーンはほぼ非弾性の材料を備えることを特徴とする装置。
- 23請求項15に記載の装置において、前記ばね要素の前記近位部分は、前記螺旋部材にコンプライアンスを提供するために前記第1位置に前記内側部材が案内される時に前記ばね要素の近位部分が延びるように相対的に小さなばね定数を有することを特徴とする装置。
- 24請求項23に記載の装置において、前記ばね要素の前記近位部分は、前記ばね要素の前記遠位部分よりも小さいばね定数を有することを特徴とする装置。
- 25請求項15に記載の装置において、前記バルーンの遠位端は内部にばね止めを備えており、前記ばね要素の前記遠位部分は、前記第2位置に向かって前記内側部材を付勢するために前記ばね止めに接触することを特徴とする装置。
- 26請求項15に記載の装置において、前記内側部材上にスライド移動可能に配置されたカラーをさらに備えており、前記ばね要素の前記近位部分は前記カラーに結合されており、及び、前記螺旋部材の前記第2端は前記カラーに結合されており、それによって、前記ばね要素の前記近位部分に前記第2端を結合することを特徴とする装置。
- 27請求項15に記載の装置において、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位遠端は、前記内側部材が前記出口のシールを向上させるために前記第2位置にある時に前記シール部材及び前記遠位先端の間の表面接触を最大化するように構成されていることを特徴とする装置。
- 28請求項15に記載の装置において、前記シール部材は、テーパ形状の近位端を備えており、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位先端は、前記シール部材の前記テーパ形状の近位端を内部に受け入れるために前記バルーンから外側に離れて広がるように偏向されることを特徴とする装置。
- 29請求項15に記載の装置において、前記シール部材は、テーパ形状の近位端を備えており、前記バルーンは前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位先端は、前記第2位置で内部に前記シール部材の前記テーパ形状の近位端を受け入れるために前記遠位先端が弾性的に拡張するように可撓性材料を備えることを特徴とする装置。
- 30請求項29に記載の装置において、前記遠位先端は、前記バルーンの出口から前記シール部材を離れるように移動させるために前記第2位置から前記第1位置に前記内側部材が案内される時にその原形のサイズに向かって弾性的に復帰するように構成されていることを特徴とする装置。
- 31請求項15に記載の装置において、前記内側部材は、前記内側部材の遠位端から前記シール部材を越えて遠位に延びる湾曲した遠位先端を備えており、前記遠位先端は、細長部材が前記内側部材及び前記遠位先端を通って導入される時に前記遠位先端がほぼ真っ直ぐにされるように弾性的に可撓性を有しており、前記遠位先端は、前記細長部材が前記遠位先端から除去される時にその湾曲した形状に向かって弾性的に復帰することを特徴とする装置。
- 32請求項15に記載の装置において、前記バルーンの遠位端と前記第2位置の前記シール部材との間の摩擦を低減するために前記バルーンの遠位端の少なくとも一部の内面上に被覆をさらに備えることを特徴とする装置。
- 33請求項15に記載の装置において、前記シール部材は、前記内側部材の遠位端から延びる円錐頭を備えており、前記円錐頭は、傾斜した遠位先端を有することを特徴とする装置。
- 34請求項15に記載の装置において、前記外側部材の近位端上のハンドルと、前記バルーンの出口を開放するために前記第2位置及び前記第1位置の間で前記内側部材を案内する、及び、前記螺旋部材を拡張するために前記第3位置に前記内側部材を案内する前記ハンドル上のアクチュエータと、を備えることを特徴とする装置。
- 35請求項34に記載の装置において、前記ばね要素は、前記アクチュエータが解放さされる時に前記第1位置から前記第2位置に前記内側部材を自動的に案内するように付勢されることを特徴とする装置。
- 36請求項34に記載の装置において、前記アクチュエータは、前記第2位置から前記第1位置に前記内側部材を案内するために前記ばね要素の前記付勢を克服するように構成されることを特徴とする装置。
- 37請求項34に記載の装置において、前記内側部材は、細長部材を受け入れるために前記内側部材の近位端及び遠位端の間で延びる第2内腔を備えており、前記ハンドルは、前記第2内腔内に受け入れられた細長部材の一部を固定するために前記ハンドルの外面上に保持装置を備えることを特徴とする装置。
- 38体の管腔を処置する装置であって、 ハンドルを備える近位端、体の管腔内への導入のためのサイズを有する遠位端、並びに、前記近位端及び前記遠位端の間で延びる第1内腔、を有する細長の外側部材と、 前記外側部材の遠位端に固定される近位端、及び、出口を備える遠位端、を備える拡張可能なバルーンであって、前記第1内腔及び当該バルーンの出口と連通する内部を備える、バルーンと、 前記第1内腔内にスライド移動可能に配置される内側部材であって、前記外側部材の近位端に隣接する 近 位端、前記バルーンの出口から延びる遠位端、及び、前記内側部材の遠位端上のシール部材、を備える内側部材と、 前記第1内腔を通って導入された流体が前記バルーンの内部を通って前記バルーンの出口から流出するように前記バルーンの出口から間隔を空けて前記シール部材が配置される第1位置と、前記第1内腔を通って導入された前記流体が、前記バルーンを拡張させるために前記バルーンの内部に流入するように前記バルーンの出口を前記シール部材が実質的にシールする第2位置と、の間で前記内側部材を移動させるために前記内側部材に結合されるハンドル上の第1アクチュエータと、 前記内側部材の遠位端に結合される遠位端及び前記遠位端の近位に配置される近位端を備え、前記バルーンの内部内で前記内側部材周りに螺旋状に延びる螺旋部材と、 前記螺旋部材を軸線方向に圧縮して半径方向外側に拡張させるように前記螺旋部材の近位端を遠位に移動させるために前記螺旋部材の前記近位端に結合される前記ハンドル上の第2アクチュエータと、を備えることを特徴とする装置。
- 39請求項38に記載の装置において、前記第2位置に向かって前記内側部材を付勢するために前記バルーンの内部内に少なくとも部分的に配置されるばね要素をさらに備えることを特徴とする装置。
- 40請求項38に記載の装置において、前記螺旋部材が前記バルーンの内部内で実質的に妨げられないで拡張するように前記螺旋部材を拡張させるために前記第2アクチュエータを始動させる前に前記バルーンを拡張させるための膨張媒体源をさらに備えることを特徴とする装置。
- 41請求項40に記載の装置において、拡張螺旋形状を採用するために前記螺旋部材の形状に前記バルーンがほぼ一致するように前記螺旋部材を拡張させた後に前記バルーンを折り畳むために前記第1内腔と連通する真空源をさらに備えることを特徴とする装置。
- 42請求項41に記載の装置において、前記注入媒体源及び前記真空源は、前記バルーンを拡張させる及び折り畳むために前記バルーンの内部内に流体を運搬する及び前記バルーンの内部から流体を除去するための注射器を備えることを特徴とする装置。
- 43請求項38に記載の装置において、前記バルーンの内部内で前記内側部材に固定される中間部分、前記中間部分から近位に延びて前記螺旋部材の遠位端に結合される近位部分、及び、前記中間部分から遠位に延びる遠位部分、を有するばね要素をさらに備え、前記遠位部分は前記バルーンの遠位端に結合され、それによって、前記第2位置に向かって前記内側部材を付勢することを特徴とする装置。
- 44請求項43に記載の装置において、前記ばね要素の前記近位部分は、前記螺旋部材にコンプライアンスを提供するために前記第1位置に前記内側部材が案内される時に前記ばね要素の前記近位部分が延びるように相対的に低いばね定数を有することを特徴とする装置。
- 45請求項43に記載の装置において、前記ばね要素の前記近位部分は、前記ばね要素の前記遠位部分よりも小さいばね定数を有することを特徴とする装置。
- 46請求項43に記載の装置において、前記バルーンの遠位端は内部にばね止めを備えており、前記ばね要素の前記遠位部分は、前記第2位置に向かって前記内側部材を付勢するために前記ばね止めに接触することを特徴とする装置。
- 47請求項43に記載の装置において、前記内側部材上にスライド移動可能に配置されたカラーをさらに備えており、前記ばね要素の前記近位部分は前記カラーに結合され、及び、前記螺旋部材の前記第2端は前記カラーに結合され、それによって、前記ばね要素の前記近位部分に前記第2端を結合することを特徴とする装置。
- 48体の管腔を処置する装置であって、 近位端、体の管腔内への導入のためのサイズを有する遠位端、並びに、前記近位端及び前記遠位端の間で延びる第1内腔を有する外側部材と、 前記外側部材の遠位端に固定される近位端、及び、出口を備える遠位端、を備える拡張可能なバルーンであって、前記第1内腔及び前記バルーンの出口と連通する内部を備えるバルーンと、 前記第1内腔内にスライド移動可能に配置される内側部材であって、前記外側部材の近位端に隣接する近位端、及び、前記バルーンの出口から延びる遠位端、を備える内側部材と、 前記内側部材の遠位端上のシール部材であって、前記第1内腔を通って導入された流体が前記バルーンの内部を通って前記バルーンの出口から流出するように前記バルーンの出口から前記シール部材が間隔を空けて配置される第1位置と、前記第1内腔を通って導入された流体が、前記バルーンを拡張させるために前記バルーンの内部に流入するように前記バルーンの出口を前記シール部材が実質的にシールする第2位置と、の間で前記内側部材が移動可能である、シール部材と、を備え、 前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備えており、前記遠位先端は、前記出口のシールを向上させるために前記内側部材が第2位置にある時に前記シール部材及び前記遠位先端の間の表面接触を最大化するように構成されることを特徴とする装置。
- 49請求項 48 に記載の装置において、前記外側部材の近位端上のハンドルと、前記バルーンの出口を開放するために前記第2位置から前記第1位置に前記内側部材を案内する前記ハンドル上のアクチュエータと、をさらに備えることを特徴とする装置。
- 50請求項 48 に記載の装置において、前記バルーンの遠位端のばね止めの間で前記バルーンの内部内少なくとも部分的にあるばね要素であって、前記第2位置に向かって前記内側部材を付勢するために前記内側部材の遠位端に結合されるばね要素をさらに備えることを特徴とする装置。
- 51請求項 50 に記載の装置において、前記ばね要素は、前記アクチュエータが解放された時に前記第1位置から前記第2位置に前記内側部材を自動的に案内するように付勢されることを特徴とする装置。
- 52請求項 48 に記載の装置において、前記シール部材は、テーパ形状の近位端を備え、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備え、前記遠位先端は、前記シール部材の前記テーパ形状の近位端を内部に受け入れるように前記バルーンから外側に広がるように偏向されることを特徴とする装置。
- 53請求項 48 に記載の装置において、前記シール部材は、テーパ形状の近位端を備え、前記バルーンは、前記バルーンの遠位端から遠位に延びる遠位先端を備え、前記遠位先端は、当該遠位先端が前記第2位置の前記シール部材の前記テーパ形状の近位端を内部に受け入れるように弾性的に拡張するように可撓性材料を備えることを特徴とする装置。
- 54請求項 53 に記載の装置において、前記遠位先端は、前記バルーンの出口から離れるように前記シール部材を移動させるために前記第2位置から前記第1位置に前記内側部材が案内される時にその原形のサイズに向かって弾性的に復帰するように構成されることを特徴とする装置。
- 55請求項 48 に記載の装置において、前記内側部材は、前記シール部材を越えて前記内側部材の遠位端から遠位に延びる湾曲した遠位先端を備え、前記遠位先端は、細長部材が前記内側部材及び前記遠位先端を通って導入される時に前記遠位先端がほぼ真っ直ぐにされるように弾性的に可撓性を有しており、前記遠位先端は、前記細長部材が前記遠位先端から除去される時にその湾曲した形状に向かって弾性的に復帰することを特徴とする装置。
- 56請求項 48 に記載の装置において、前記バルーンの遠位端及び前記第2位置の前記シール部材の間の摩擦を低減するために前記バルーンの遠位端の少なくとも一部の内面上に被覆をさらに備えることを特徴とする装置。
- 57請求項 48 に記載の装置において、前記シール部材は、前記内側部材の遠位端から延びる円錐頭を備え、前記円錐頭は、傾斜した遠位先端を有することを特徴とする装置。
Independent claims57
322 paragraphs, as filed
The present invention generally relates to devices that treat obstructive substances and / or other obstructions within the lumen of a patient's body, such as within a tubular implant, intra-arteriovenous fistula, intravascular, etc. In particular, the present invention injects fluid into the lumen of the body, for example, to remove or capture blood clots or other obstructive substances in the lumen of the body and / or to widen the lumen of the body. It relates to devices such as balloon catheters and to methods of manufacturing and using such devices.
The flow of blood vessels in the patient's vascular structure or in the lumen of other bodies can be blocked or eventually blocked for a variety of reasons. For example, blood vessels can become progressively narrower due to inflammation and / or cell proliferation. In addition, thrombi can occur due to such narrowing or other flow problems within the blood vessels.
For example, a large arteriovenous implant can be implanted in the arm of a patient who has experienced renal failure, eg, to facilitate dialysis procedures. Such a graft may be a fistula formed directly into the patient's body, for example through tissue between adjacent arteries and veins or between other blood vessels, and the fistula was implanted between two blood vessels. It may be a xenograft or an artificial graft. These grafts have a limited life cycle due to inflammation, thrombus formation, and the like. Once these grafts have become sufficiently occluded or deteriorated, new grafts must be implanted in new locations for subsequent treatment.
Therefore, devices and methods that remove material from large arteriovenous grafts, blood vessels or other body lumens and / or treat body lumens may be useful.
The present invention relates to devices that treat lumens of a patient's body, such as tubular implants, large arteriovenous fistulas, blood vessels, and the like. More specifically, the present invention is a fluid in a body lumen for removing or trapping thrombi or other obstructive substances in the body lumen and / or for expanding the body lumen. And a method of manufacturing and using such a device.
According to the first embodiment, a device for treating a lumen of the body, which can be operated in different modes to perform various functions, is provided, and the device may be replaced, for example, during the procedure. Reduce the number of times. For example, the device has a proximal end, a distal end sized for introduction into the lumen of the body, a lumen extending between the proximal and distal ends, and an interior communicating with the lumen. It may have a shaft with, with a balloon on the distal end. The device may have a valve on the distal end of the shaft that selectively opens or closes an outlet that communicates with the lumen. With the valve open, fluid introduced into the lumen can flow out of the outlet and into the lumen of the body beyond the distal end. When the valve is closed, the fluid introduced into the lumen contracts, for example, in a cylindrical shape to widen the blockage in the body, or in a bulb shape to remove substances in the lumen of the body. The balloon can be expanded from to the expanded state. Optionally, the valve has a stop that can be extended to push the distal end of the balloon, eg, to extend or reduce the contour of the balloon and / or to facilitate introduction into the patient's body. You can.
In addition or as an alternative, the device may have an actuator that compresses the balloon in the axial direction, and the balloon may be configured to expand from a contracted state to an expanding spiral shape when compressed in the axial direction. For example, the actuator may have an inner member within a shaft coupled to the distal end of the balloon, with a spiral member extending around the inner member within the balloon. When the inner member is proximally guided or actuated, the spiral member is compressed, resulting in radial outward expansion, thereby expanding the balloon into an extended spiral shape. For example, after using an extended spiral balloon to remove material in the lumen of the body, the medial member may be extended distally to extend the balloon and return the balloon towards the contracted state. ..
According to another embodiment, an elongated tubular outer member having a proximal end, a distal end, and a first lumen extending between the proximal and distal ends, and fixed to the distal end of the tubular member. An expandable balloon having a proximal end and a distal end with an outlet, with a balloon having an interior communicating with the first lumen and the outlet of the balloon, and sliding movement into the first lumen. An elongated inner member that is capable of being arranged and a device that treats the lumen of the body having the member are provided. The elongated member may have a proximal end adjacent to the proximal end of the tubular member and a distal end extending from the outlet of the balloon. The balloon and the elongated member may have a collaborative feature that provides a valve that selectively opens and closes the outlet of the balloon. For example, a sealing member may be provided on the distal end of an elongated member sized to engage the distal end of the balloon to substantially seal the outlet from the flow of fluid.
The elongated member is the first position where the sealing member is arranged at a distance from the outlet of the balloon so that the fluid introduced through the first lumen passes through the inside of the balloon and flows out from the outlet of the balloon. 1 Movable between a second position where the sealing member substantially seals the outlet of the balloon so that the fluid introduced through the lumen flows into the inside of the balloon to expand the balloon. You can.
Optionally, the elongated member may be urged to either the first or second position, but may be selectively guided to the other of the first and second positions. In one embodiment, for example, in order to engage the sealing member with the outlet to substantially seal the outlet, a spring element coupled to the elongated member so as to urge the elongated member proximally is inside the balloon. It may be provided. For example, the spring element may be coupled between the spring retainer on the distal end of the balloon and the collar or other attachment member on the elongated member. When the elongate member advances distally to open the outlet, the spring element is proximal to reseal the outlet by the sealing member or to facilitate resealing when the elongate member is released. It may be compressed between the spring stopper and the collar so that the spring element can automatically guide the elongated member.
If desired, the distal end of the balloon may have a distal tip that is shaped and / or configured to facilitate sealing and / or opening of the outlet. For example, in one embodiment, the sealing member may have a tapered proximal end, the distal tip being at least partially seated on the widened distal tip with the tapered proximal end of the sealing member. It may spread outward from the balloon to obtain. Such embodiments may increase surface contact between the seal member and the distal end to improve outlet seal. In addition or as an alternative, the widened distal tip can maximize the free area of the exit as the sealing member is guided away from the outlet.
In another embodiment, an elastically expandable distal tip may be provided, for example to increase surface contact between the sealing member and the distal end of the balloon to improve the seal at the outlet. For example, the distal tip is relative to the distal end of the balloon so that the distal tip can expand to match the shape of the seal member as the seal member is guided proximally into the distal tip. It may be thin. When the seal member is guided distally to open the outlet, the distal tip may elastically return to its original size and / or shape.
In addition or as an alternative, the elongated inner member may have, for example, a "J" -shaped or curved distal tip that extends distally from the sealing member or distally from the distal end of the inner member. The distal tip may be sufficiently flexible so that the distal tip is approximately straightened as the guide wire or other instrument advances into the distal tip through the elongated member. It may be easy to advance the device beyond. When the guide wire is pulled back from the distal tip, the distal tip may elastically return to its curved shape, placing the device in the branch from the main vessel or other body lumen and / or It can be easy to move forward.
Optionally, any of the devices herein is a helical member having a first end coupled to the distal end of the tubular member and a second end coupled to the distal end of the elongated member. It may have a spiral member that spirally extends around the elongated member within the balloon. The elongated member can be moved to a third position where the distal end of the elongated member is guided towards the distal end of the tubular member so that the helical member is compressed axially and expands radially outward. It may be there, thereby expanding the balloon into an expanding spiral shape.
According to yet another embodiment, a proximal end, a distal end having a size for introduction into the lumen of the body, and a first lumen extending between the proximal and distal ends. An inflatable balloon having an outer member having, a proximal end fixed to the distal end of the outer member, and a distal end having an outlet, the inside communicating with the first lumen and the outlet of the balloon. A device for treating the lumen of the body, which has a balloon and has. A slidable inner member is placed in the first lumen, the inner member being the proximal end adjacent to the proximal end of the outer member, the distal end extending from the exit of the balloon, and the distal end of the inner member. Has the upper seal member. The inner member is the first position and the first position where the sealing member is spaced apart from the outlet of the balloon so that the fluid introduced through the first lumen flows through the inside of the balloon and out of the outlet of the balloon. 1 Movable between a second position where the sealing member substantially seals the exit of the balloon so that the fluid introduced through the lumen flows into the inside of the balloon to expand the balloon. You can. For example, a spring element may be provided between the spring stopper at the distal end of the balloon and the distal end of the inner member to urge the inner member towards a second position.
According to yet another embodiment, an outer tubular member having a first lumen extending between the proximal and distal ends and between the proximal and distal ends and slidable into the first lumen. A tube of the body having an inner member located in the body, a proximal end fixed to the distal end of the outer member, and an expandable balloon having an interior communicating with the first lumen and the outlet of the balloon. A device for treating the lumen is provided. The inner member has a distal end that extends from the outlet of the balloon and carries one or more sealing members. The spiral member has a first end coupled to the distal end of the outer member and a second end coupled to the distal end of the inner member, the spiral member being around the inner member within the balloon. It extends spirally.
The inner member may be movable relative to the outer member to deploy the balloon in multiple modes. For example, the inner member is in a first position where the sealing member is spaced apart from the outlet of the balloon so that the fluid introduced through the first lumen flows through the inside of the balloon and out of the outlet of the balloon. From the second position, where the sealing member substantially seals the outlet of the balloon, so that the fluid introduced from and through the first lumen flows into the inside of the balloon to expand the balloon. It may be possible. In addition or as an alternative, the inner member is such that the distal end of the inner member is closer to the distal end of the outer member from a first or second position so that the helical member extends radially outward. It may be movable to a third position guided by the position, thereby expanding the balloon into an expanding spiral shape.
According to yet another embodiment, an outer tubular member having a first lumen extending between its proximal and distal ends, an inner member slidably disposed within the first lumen, and the outer side. A device for treating a lumen of a body is provided having an expandable balloon with a proximal end fixed to the distal end of the member and a distal end coupled to the distal end of the medial member. To. The balloon is such that the inflatable medium can be carried into the interior of the balloon through the first lumen to expand the balloon radially outward from the contracted state to the expanded state, for example defining a cylindrical or bulbous shape. It has an interior that communicates with the first lumen. The inner member may be axially movable with respect to the outer member such that the balloon compresses in the axial direction and expands radially from the contracted state to an extended spiral shape.
For example, the device is a spiral member that spirally extends around the inner member within the balloon, with a first end coupled to the distal end of the outer member and a second end coupled to the inner member. It may have a spiral member to have. When the inner member moves in the axial direction, the spiral member is compressed in the axial direction and expanded radially outward, thereby guiding the balloon in an extended spiral shape.
Optionally, the inner member may have a second lumen extending between the proximal and distal ends of the inner member, eg, to receive a guide wire or other rail. Therefore, the device may advance beyond the guide wire mounted through the second lumen. When the balloon is placed in the lumen of the target body, the inner member will, if necessary, the device, for example, without removing the device and / or introducing another device into the lumen of the body. May be guided to one or more of the first, second, and / or third positions to perform various functions using.
According to yet another embodiment, a proximal end with a handle, a distal end sized for introduction into the lumen of the body, and a first inner extending between the proximal and distal ends. An expandable balloon having an elongated outer member having a lumen, a proximal end fixed to the distal end of the outer member, and a distal end having an outlet of the first lumen and balloon. A device for treating a lumen of the body is provided, which has a balloon having an interior communicating with the outlet. An inner member may be slidably arranged within the first lumen, the inner member being the proximal end adjacent to the proximal end of the outer member, the distal end extending from the outlet of the balloon, and the far inner member. It has a seal member on the distal end. The first position where the sealing member is spaced apart from the outlet of the balloon and the first cavity so that the fluid introduced through the first cavity flows through the inside of the balloon and out of the outlet of the balloon. Inside to move the inner member between and a second position where the sealing member substantially seals the outlet of the balloon so that the fluid introduced through it enters the inside of the balloon to expand the balloon. A first actuator coupled to the member may be provided on the handle.
The device is a helical member having a distal end coupled to the distal end of the inner member and a proximal end located proximal to the distal end, around the inner member within the balloon. It may have a spiral member extending in a spiral shape. A second actuator coupled to the proximal end of the helical member is on the handle to move the proximal end of the helical member distally so that the helical member compresses axially and expands radially outward. May be provided in.
The spiral member may be expanded and folded independently of the movement of the inner member between the first and second positions. For example, an expansion medium source is coupled to a device that expands the balloon before initiating a second actuator to expand the spiral member so that the spiral member expands within the balloon substantially unimpeded. Good. In addition or as an alternative, the vacuum source communicates with the first lumen to fold the balloon after expanding the spiral member so that the balloon closely matches the shape of the spiral member to adopt the extended spiral shape. Good. In an exemplary embodiment, both the expansion medium source and the vacuum source may be a single syringe that carries fluid into and removes fluid from inside the balloon to expand and fold the balloon. ..
According to yet another embodiment, the proximal end, the distal end having a size for introduction into the lumen of the body, and the first inner extending between the proximal and distal exits. A device for treating a lumen of the body, which has a lumen, may be provided. An inner member having a proximal end adjacent to the proximal end of the outer member and a distal end adjacent to the distal end of the outer member may be slidably arranged in the first lumen. The device is expandable with proximal and distal ends coupled to the distal end of the outer member and an interior communicating with the first lumen through one or more openings at the distal end of the outer member. May have a balloon.
A sealing member may be provided on the distal end of the inner member, wherein the sealing member is spaced from the outlet so that the fluid introduced through the first lumen exits the outlet. Movement between one position and a second position where the sealing member substantially seals the exit so that the fluid introduced through the first lumen enters the inside of the balloon to expand the balloon. It may be possible. Optionally, the inner member may be urged towards either the first position or the second position. Distal of the balloon, for example, to improve the seal between the seal member and the outlet, and / or to urge the inner member towards a second position, eg, to automatically seal the outlet with the seal member. A spring element may be coupled between the end spring stop and the distal end of the inner member.
According to yet another embodiment, a proximal end, a distal end having a size for introduction into the lumen of the body, and a first lumen extending between the proximal and distal ends. A device for treating a lumen of a body is provided having an outer member having an expandable balloon having a proximal end fixed to the distal end of the outer member and a distal end having an outlet. You can. The balloon may have an interior that communicates with the first lumen and the outlet of the balloon. An inner member may be slidably arranged within the first lumen, the inner member being the proximal end adjacent to the proximal end of the outer member, the distal end extending from the exit of the balloon, and the far inner member. It has a sealing member on the distal end. The inner member is the first position and the first position where the seal member is spaced apart from the outlet of the balloon so that the fluid introduced through the first lumen passes through the inside of the balloon and exits the outlet of the balloon. The fluid introduced through the lumen is movable between a second position where the sealing member substantially seals the exit of the balloon so that it enters the inside of the balloon to expand the balloon. Good.
In addition, the balloon may have a distal tip extending distally from the distal end of the balloon, which seals, for example, when the inner member is in a second position to facilitate sealing of the outlet. It is configured to facilitate opening and / or closure of the outlet to maximize surface contact between the member and the distal tip. For example, in one embodiment, the sealing member may have a tapered proximal end, the balloon may have a distal tip extending distally from the distal end of the balloon, and the distal tip may. It is urged to project outwardly away from the balloon to accommodate the tapered proximal end of the sealing member.
In another embodiment, the sealing member may have a tapered proximal end, the balloon may have a distal tip extending distally from the distal end of the balloon, and the distal tip may be a th. It is equipped with a flexible material so that the distal tip elastically expands to accept the tapered proximal end of the sealing member inside in two positions. For example, the distal tip elastically returns towards its original size as the inner member is guided from the second position to the first position to move the sealing member away from the balloon outlet. It may be configured.
Optionally, in any of these embodiments, the distal end and / or the distal end of the balloon and / or to reduce friction between the distal tip and the sealing member at the second position. A coating may be provided on the inner surface of at least a portion of the distal tip.
Alternatively, in any of these embodiments, the distal end of the balloon may have a size to provide a predetermined resistance to the flow of fluid through it. For example, a spring stop or other feature within the distal end may partially constrict the passage through the distal end leading to the outlet. Thus, if necessary, with the outlet open, the distal end may provide sufficient resistance to the flow of fluid through it, and fluid carried within the interior of the balloon will pass through the outlet. The balloon can be at least partially inflated while delivering fluid into the body's lumen.
According to yet another embodiment, the proximal end, the distal end having a size for introduction into the lumen of the body, the first lumen extending between the proximal and distal exits, And an inner member that is slidably arranged in the first lumen, adjacent to the proximal end of the outer member, and far beyond the distal end of the outer member. A device for treating a lumen of the body is provided, comprising an inner member comprising a distal end extending to a position. A seal member is provided on the distal end of the inner member having one or more passages through it, and the distal end fixed distal to the distal end of the inner member beyond the seal member and the balloon. An expandable balloon is provided having a proximal end fixed to a sealing member so that the interior communicates with one or more passages. The inner member has a first position where the sealing members are spaced apart from the outlet of the outer member so that the fluid introduced through the first lumen flows through the outlet into the area around the device. With a second position, where the sealing member substantially seals the outlet so that the fluid introduced through the first lumen flows into the inside of the balloon through one or more passages to expand the balloon. It may be movable between.
According to another embodiment, of a shaft having an elongated shaft having a first lumen extending between its proximal and distal ends, an outlet, and an interior communicating with the first lumen and the outlet. A method of treating a lumen of a patient's body using a balloon device with a balloon carried over the distal end is provided. The distal end of the shaft may be introduced into the body lumen with a contracting balloon and may be positioned relative to the obstructing material in the body lumen to be removed. When positioned adjacent to the obstructive material, the balloon may expand from a contracted state into an dilated spiral, with the distal end of the device along with an dilated spiral balloon to remove material from the body's lumen. It may be guided along the lumen of the body. For example, the spiral shape of the balloon can facilitate the dispelling of material adhering to the walls of the body's lumen. Optionally, the balloon may have one or more features, such as edges, grooves, etc., to facilitate the separation of adherents from the walls of the body's lumen. If necessary, the balloon may be returned to a contracted state, moved to a new position in the body's lumen, and re-expanded into an dilated spiral to remove additional material within the body's lumen. You can. Once sufficient material has been removed, the balloon may be returned to a contracted state.
Within the interior of the balloon through the first lumen to expand the balloon from the contracted state to the expanded state, for example to define a nearly cylindrical shape, before and after removing the obstructive substance from the body lumen. An expansion medium may be introduced into the. Balloons may be inflated to occlude, spread obstacles, or treat the walls of the body's lumen. After dilating the lumen of the body, the inflatable medium may be pulled back through the first lumen from the inside of the balloon to fold the balloon towards the contracted state.
If the device has a valve adjacent to the balloon to open or close the first lumen and the outlet that communicates with the inside of the balloon, the valve may be closed before inflating the balloon. Optionally, at any time during the procedure, the valve may be opened, for example for diagnostic and / or therapeutic purposes, for example to inject fluid into the lumen of the body. During such injection, the outlet of the balloon may provide substantially minimal resistance so that almost all of the fluid carried into the balloon will flow out of the outlet. Alternatively, the outlet provides a defined resistance to the flow of fluid through it so that some of the fluid carried into the balloon expands the balloon while the rest of the fluid is carried through the outlet. Can be done. For example, after expanding the balloon into a cylindrical and / or spiral shape one or more times, the distal end of the device may be completely removed from the body lumen and / or from the patient's body along with the contracting balloon.
According to yet another embodiment, an outer member having a first lumen extending between its proximal and distal ends, an inner member that is slidable within the first lumen, and a distal member of the outer member. Treat the lumen of the patient's body using a balloon device with a balloon having a proximal end attached to the end, a distal end with an outlet, and an interior communicating with the first lumen and outlet. A way to do it is provided. The distal end of the outer member, along with the contracted balloon, and with the inner member in the proximal position so that the outlet is substantially sealed by the sealing member on the distal end of the inner member, within the body lumen. May be introduced in. An actuator on the proximal end of the device may be initiated to move the inner member to a distal position that continuously guides the seal member distally to open the outlet, allowing fluid to pass through the interior of the balloon. It may be carried through the first lumen so that the fluid flows out of the open outlet and into the lumen of the body.
The inner member may then be retracted proximally towards a proximal position to substantially seal the outlet by the sealing member. Optionally, a spring element is provided within the balloon that provides sufficient urging force to ensure that the sealing member substantially engages the distal end of the balloon to seal the outlet. Good. Alternatively, the spring element has sufficient urging force so that when the actuator is thus released, the sealing member automatically retracts the inner member towards the proximal position to substantially seal the outlet. May have. The fluid may be carried through the first lumen with the outlet substantially sealed, thereby causing the balloon from contracting to expanding, for example to widen the obstruction or treat the lumen of the body. Expand.
Optionally, for example, the balloon may be guided in an dilated spiral within the body lumen before or after the balloon is expanded into an expanded state, the balloon removing material from the walls of the body lumen. It may be guided along the wall of the body's lumen in an extended spiral shape. In one embodiment, the balloon is formed by at least partially expanding the balloon towards the expanded state, by expanding the spiral member within the interior of the balloon with the balloon at least partially expanded towards the expanded state, and. The balloon may be guided into the extended spiral shape by folding the balloon around the expanded spiral member so that the balloon closely matches the shape of the spiral member. In another embodiment, the balloon may be guided into an extended spiral shape by expanding the spiral member within the balloon with the balloon folded so that the balloon closely matches the shape of the spiral member. In yet another embodiment, the balloon may be guided in an extended spiral shape by guiding the inner member proximal to the outer member, thereby compressing the balloon axially within the balloon. The spiral member is expanded, and the balloon substantially matches the shape of the spiral member when the spiral member is expanded.
According to yet another embodiment, an outer member having a first lumen extending between its proximal and distal ends, an inner member slidable within the first lumen, and a distal member of the outer member. A balloon device with a proximal end attached to the end, a distal end with an outlet, and a balloon with a first lumen and an interior communicating with the outlet is used to treat the lumen of the patient's body. The method is provided. The distal end of the outer member may be introduced into the lumen of the body with a contracting balloon, and the fluid may be carried through the first lumen with the outlet sealed, thereby contracting. Inflate the balloon from state to expanded state. The spiral member inside the balloon may then be expanded by the expanded balloon, after which the balloon is expanded so that the balloon closely matches the shape of the spiral member to define the expanded spiral shape. It may be folded around. The balloon may then be guided along the wall of the body lumen in an extended spiral shape to remove material from the wall of the body lumen.
Optionally, in the extended spiral shape, the size of the spiral member and the balloon may be changed if necessary. For example, the helical member may be expanded to a size corresponding to the size of the lumen of the particular body to be treated by sliding the inner member into any of a plurality of positions that extend the helical member to the required size. .. Thus, the spiral member and balloon may be capable of treating various sizes of body lumens using a single device.
According to yet another embodiment, an outer tubular member having a first lumen extending between its proximal and distal ends, and a proximal end, outlet and first inner attached to the distal end of the outer member. A method of treating a lumen in a patient's body using a balloon having a distal end with an interior communicating with a lumen and an outlet is provided. First, the distal end of the elongate member may be introduced into the patient's body, eg, through a percutaneous entry site, until the distal end is placed within the lumen of the body. It has a sealing member on the distal end.
The distal end of the outer member may advance over the elongated member with the contracted balloon, for example, until the outlet of the balloon engages with or is located adjacent to the seal member. Optionally, an actuator on the proximal end of the outer member may be coupled to the inner member, and the actuator is guided to a first position where the sealing member substantially seals the outlet. The fluid may then be transported into the first lumen with the outlet substantially sealed, thereby expanding the balloon into an expanded state.
Either before or after inflating the balloon, the actuator may be guided to a second position where the sealing member is spaced apart from the outlet and the fluid is transported into the first lumen. It may, thereby transporting the fluid from the outlet into the lumen of the body. The actuator may be detached from the inner member upon completion of sufficient treatment, optionally by inflating the balloon and / or carrying the fluid into the lumen of the body, with the outer member being the inner member. It may be removed from the surroundings, for example, outside the patient's body. Alternatively, the outer and inner members may be removed at about the same time.
In an alternative embodiment, the balloon may be expandable in an dilated spiral shape within the lumen of the body. In that case, the balloon may be guided along the wall of the body lumen in an extended spiral shape to remove material from the wall of the body lumen.
According to yet another embodiment, an outer tubular member having a first lumen extending between its proximal and distal ends, and a proximal end, exit and first attached to the distal end of the outer member. A method of treating a lumen of a patient's body using a device having a balloon having a distal end having an interior communicating with the lumen and an outlet and a spiral member within the interior of the balloon is provided. To. First, the distal end of the elongate member may be introduced into the patient's body until the distal end is placed within the lumen of the body, and the elongate member has an enlargement member on the distal end.
The distal end of the outer member may advance over the elongated member with the contracted balloon, for example, until the outlet of the balloon engages the seal member or is located adjacent to the seal member. At least one of the outer and inner members may be axially guided with respect to the other, for example to compress the balloon in the axial direction and expand the spiral member within the interior of the balloon. The balloon may closely match the shape of the spiral member, for example, when the spiral member is expanded to define an extended spiral shape, and the balloon expands to remove material from the walls of the body's lumen. It may be guided along the wall of the body's lumen in a spiral shape.
According to yet another embodiment, an outer member having a first lumen extending between its proximal and distal ends, a slidable inner member within the first lumen, and a distal member of the outer member. A method of treating a lumen of a patient's body using a balloon device having a balloon attached to the distal end of an inner member beyond the end is provided. The distal end of the outer member may be introduced into the lumen of the body with a contracting balloon. The inner member may be proximal so that the sealing member on the inner member substantially seals the outlet of the distal end of the outer member communicating with the first lumen, or the inner member seals. The members may be in a distal position so that they are spaced apart from the outlet.
The inner member may be guided to a distal position using, for example, an actuator on the proximal end of the outer member, and as a result guides the seal member away from the outlet to open the outlet. The fluid may be carried through the first lumen such that the fluid flows through the outlet into the lumen of the body. Optionally, the inner member may be guided to an intermediate position where some of the fluid is carried into the lumen of the body, and some of the fluid is at least one of the sealing members to inflate the balloon at least partially. Enter the inside of the balloon through the passage of.
If necessary, the sealing member may guide the inner member towards the proximal position to substantially seal the outlet, allowing fluid to pass through the first lumen with the outlet substantially sealed. It may be transported, thereby transporting the fluid through one or more passages of the sealing member to expand the balloon from the contracted state to the expanded state. Balloons may be used to widen or treat the lumen of the body. After sufficient treatment, fluid may be aspirated from inside the balloon through one or more passages and a first lumen to return the balloon to its contracted state.
Other aspects and features of the invention will become apparent from the discussion of the following description made in connection with the accompanying drawings.
It will be appreciated that the illustrated devices shown in the drawings are not necessarily drawn to scale and are instead highlighted in exemplifying the various aspects and features of the illustrated embodiments.
<figref num="1">A first mode that minimizes the contours of the device for introduction into the body lumen, a second mode that injects fluid into the body lumen, and a third mode that removes substances in the body lumen. FIG. 5 is a side view of an exemplary first embodiment of a device that is operable in mode and has a balloon that treats a lumen of the body.</figref><figref num="2A">It is a side view of the device of FIG. 1 in the first mode that minimizes the contour of the device for introduction into the lumen of the body.</figref><figref num="2B">It is a side view of the device of FIG. 1 in the second mode of injecting a fluid into the lumen of the body.</figref><figref num="2C">It is a side view of the device of FIG. 1 in the third mode in which the balloon is expanded to remove the substance in the lumen of the body.</figref><figref num="2D">FIG. 5 is a side view of the device of FIGS. 1 and 2C in a third mode showing that the size of the balloon has been increased to facilitate the removal of material in the lumen of the body.</figref><figref num="3">It is a side view of another embodiment of the device having a balloon for treating the lumen of the body and a valve for selectively transporting fluid from the device.</figref><figref num="4A">It is a detailed view of the distal end of the device of FIG. 3 showing a valve in the open position.</figref><figref num="4B">It is a detailed view of the distal end of the device of FIG. 3 showing the valve in the closed position.</figref><figref num="5A">FIG. 3 is a cross-sectional view of a body lumen in a patient's body showing various methods of treating the body lumen using the device of FIG.</figref><figref num="5B">FIG. 3 is a cross-sectional view of a body lumen in a patient's body showing various methods of treating the body lumen using the device of FIG.</figref><figref num="5C">FIG. 3 is a cross-sectional view of a body lumen in a patient's body showing various methods of treating the body lumen using the device of FIG.</figref><figref num="6A">It is a side detail view of the apparatus of FIG. 1 and FIG. 3 which shows the alternative structure of a balloon.</figref><figref num="6B">It is a side detail view of the apparatus of FIG. 1 and FIG. 3 which shows the alternative structure of a balloon.</figref><figref num="6C">It is a side detail view of the apparatus of FIG. 1 and FIG. 3 which shows the alternative structure of a balloon.</figref><figref num="6D">It is a side detail view of the apparatus of FIG. 1 and FIG. 3 which shows the alternative structure of a balloon.</figref><figref num="7">A device that can operate in a first mode that injects fluid into the lumen of the body, a second mode that widens the blockage in the lumen of the body, and a third mode that removes substances in the lumen of the body. It is a side view of still another exemplary embodiment of a device having a balloon that treats a lumen of the body.</figref><figref num="7A">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7B">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7C">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7D">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7E">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7F">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7G">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="7H">It is sectional drawing of the balloon of the apparatus of FIG. 7 which shows the alternative structure which integrally forms a spiral member in a balloon.</figref><figref num="8">A device that can operate in a first mode that widens the occlusion in the body lumen and a second mode that removes substances in the body lumen, and that has a balloon that treats the body lumen. It is a side view of still another example embodiment.</figref><figref num="9A">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="9B">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="9C">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="9D">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="9E">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="9F">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="9G">FIG. 5 is a cross-sectional view of a body lumen showing an exemplary method of removing a thrombus or obstructing substance from a body lumen and / or widening an obstruction within the body lumen using the device of FIG. 7 or FIG.</figref><figref num="10A">FIG. 5 is a cross-sectional view of an alternative embodiment of a balloon structure that may be provided on the device of FIG. 8 to facilitate removal of adherents in the lumen of the body.</figref><figref num="10B">FIG. 5 is a cross-sectional view of an alternative embodiment of a balloon structure that may be provided on the device of FIG. 8 to facilitate removal of adherents in the lumen of the body.</figref><figref num="10C">FIG. 5 is a cross-sectional view of an alternative embodiment of a balloon structure that may be provided on the device of FIG. 8 to facilitate removal of adherents in the lumen of the body.</figref><figref num="10D">FIG. 5 is a cross-sectional view of an alternative embodiment of a balloon structure that may be provided on the device of FIG. 8 to facilitate removal of adherents in the lumen of the body.</figref><figref num="11">FIG. 5 is a side view of an alternative embodiment of the device of FIG. 7 or 8 having an obstruction-removing balloon with coils of various sizes in different regions of the balloon.</figref><figref num="12">FIG. 5 is a cross-sectional view of a patient's body showing how to treat an arteriovenous dialysis implant using the device of FIG.</figref><figref num="13">FIG. 5 is a cross-sectional view of a patient's body showing how to treat an arteriovenous dialysis implant using the device of FIG.</figref><figref num="14">It is a side view of another alternative embodiment of the device of FIG. 11 having an expansion balloon adjacent to the obstruction removal balloon.</figref><figref num="14A">FIG. 5 is a side view of another alternative embodiment of the device of FIG.</figref><figref num="15A">It is an alternative embodiment of the coil structure which can be provided in the balloon of any of the devices of FIGS. 8-14.</figref><figref num="15B">It is an alternative embodiment of the coil structure which can be provided in the balloon of any of the devices of FIGS. 8-14.</figref><figref num="16">A device that can operate in a first mode that removes substances in the lumen of the body and a second mode that widens the obstruction in the lumen of the body and has a balloon that treats the lumen of the body. It is a side view of still another example embodiment.</figref><figref num="17A">Between the first transport structure (Fig. 11A), the first mode of removing substances in the body lumen (Fig. 11B and Fig. 11C), and the second mode of widening the occlusion in the body lumen (Fig. 11D). It is a side view of the device of FIG. 10 which shows the operation of the device in FIG.</figref><figref num="17B">Between the first transport structure (Fig. 11A), the first mode of removing substances in the body lumen (Fig. 11B and Fig. 11C), and the second mode of widening the occlusion in the body lumen (Fig. 11D). It is a side view of the device of FIG. 10 which shows the operation of the device in FIG.</figref><figref num="17C">Between the first transport structure (Fig. 11A), the first mode of removing substances in the body lumen (Fig. 11B and Fig. 11C), and the second mode of widening the occlusion in the body lumen (Fig. 11D). It is a side view of the device of FIG. 10 which shows the operation of the device in FIG.</figref><figref num="17D">Between the first transport structure (Fig. 11A), the first mode of removing substances in the body lumen (Fig. 11B and Fig. 11C), and the second mode of widening the occlusion in the body lumen (Fig. 11D). It is a side view of the device of FIG. 10 which shows the operation of the device in FIG.</figref><figref num="18A">With a device that can operate in a first mode that widens the blockage in the lumen of the body, a second mode that injects fluid into the lumen of the body, and a third mode that removes substances in the lumen of the body. It is a cross-sectional view of the distal end of another embodiment of a device having a balloon that treats a lumen of the body.</figref><figref num="18B">With a device that can operate in a first mode that widens the blockage in the lumen of the body, a second mode that injects fluid into the lumen of the body, and a third mode that removes substances in the lumen of the body. It is a cross-sectional view of the distal end of another embodiment of a device having a balloon that treats a lumen of the body.</figref><figref num="18C">With a device that can operate in a first mode that widens the blockage in the lumen of the body, a second mode that injects fluid into the lumen of the body, and a third mode that removes substances in the lumen of the body. It is a cross-sectional view of the distal end of another embodiment of a device having a balloon that treats a lumen of the body.</figref><figref num="19A">Proximal to the device of FIGS. 18A-18C showing actuators on the proximal end guided between the first, second and third positions to operate the device in the first, second and third modes, respectively. It is a side view of the end.</figref><figref num="19B">Proximal to the device of FIGS. 18A-18C showing actuators on the proximal end guided between the first, second and third positions to operate the device in the first, second and third modes, respectively. It is a side view of the end.</figref><figref num="19C">Proximal to the device of FIGS. 18A-18C showing actuators on the proximal end guided between the first, second and third positions to operate the device in the first, second and third modes, respectively. It is a side view of the end.</figref><figref num="20A">It is a side view of the alternative embodiment of the proximal end which can be provided on the apparatus of FIGS. 18A-18C.</figref><figref num="20B">It is a side view of the alternative embodiment of the proximal end which can be provided on the apparatus of FIGS. 18A-18C.</figref><figref num="20C">It is a side view of the alternative embodiment of the proximal end which can be provided on the apparatus of FIGS. 18A-18C.</figref><figref num="21A">It is a side view of the device of FIGS. 18A-19C which shows the device which is guided between different operation modes.</figref><figref num="21B">It is a side view of the device of FIGS. 18A-19C which shows the device which is guided between different operation modes.</figref><figref num="21C">It is a side view of the device of FIGS. 18A-19C which shows the device which is guided between different operation modes.</figref><figref num="21D">It is a side view of the device of FIGS. 18A-19C which shows the device which is guided between different operation modes.</figref><figref num="22A">FIG. 6 is a side view of an alternative embodiment of an alternative embodiment of an apparatus similar to the apparatus of FIGS. 18A-21D, but having a balloon and an expandable coil for treating a body lumen separated from the balloon.</figref><figref num="22B">FIG. 6 is a side view of an alternative embodiment of an alternative embodiment of an apparatus similar to the apparatus of FIGS. 18A-21D, but having a balloon and an expandable coil for treating a body lumen separated from the balloon.</figref><figref num="22C">FIG. 6 is a side view of an alternative embodiment of an alternative embodiment of an apparatus similar to the apparatus of FIGS. 18A-21D, but having a balloon and an expandable coil for treating a body lumen separated from the balloon.</figref><figref num="22D">FIG. 6 is a side view of an alternative embodiment of an alternative embodiment of an apparatus similar to the apparatus of FIGS. 18A-21D, but having a balloon and an expandable coil for treating a body lumen separated from the balloon.</figref><figref num="23A">FIG. 6 is a perspective view of a device similar to that shown in FIG. 7, including an exemplary first embodiment of a handle that initiates the device.</figref><figref num="23B">FIG. 2 is a detailed cross-sectional view of the components of the rotary knob control on the handle of FIG. 23A with the handle housing removed to show the internal components.</figref><figref num="24A">Similar to that shown in FIG. 7, is a perspective view of another device including an exemplary second embodiment of a handle for initiating the device.</figref><figref num="24B">FIG. 24 is a detailed cross-sectional view of the components of the slider control on the handle of FIG. 24A with the handle housing removed to show the internal components.</figref><figref num="24C">Similar to those shown in FIGS. 24A and 24B, it is a detail of an alternative slider control including a visual indicator that identifies the starting position of the device.</figref><figref num="25A">Similar to that shown in FIG. 7, is a perspective view of yet another device including an exemplary third embodiment of a handle that initiates the device.</figref><figref num="25B">FIG. 25A is a detailed cross-sectional view of the components of the rotating wheel control on the handle of FIG. 25A with the handle housing removed to show the internal components.</figref><figref num="26A">Similar to that shown in FIG. 7, is a perspective view of yet another device including an exemplary fourth embodiment of a handle for initiating the device.</figref><figref num="26B">FIG. 26A is a detailed cross-sectional view of the push control component on the handle in FIG. 26A with the handle housing removed to show the internal component.</figref><figref num="27A">FIG. 5 is a cross-sectional side view of the distal end of another embodiment of a device having a balloon that treats the lumen of the body.</figref><figref num="27B">It is sectional drawing of the apparatus of FIG. 27A along line 27B-27B.</figref><figref num="28A">21A is a perspective view of an exemplary embodiment of a handle that may be provided on a balloon device such as the devices of FIGS. 21A-22D.</figref><figref num="28B">It is a perspective view of the component of the handle of FIG. 28A with the outer housing of the handle removed.</figref><figref num="29">FIG. 5 is a partial cross-sectional side view of yet another exemplary embodiment of a device for treating a body lumen.</figref><figref num="30A">FIG. 9 is a detailed view of the distal end of the device of FIG. 29 showing a closed valve.</figref><figref num="30B">It is a detailed view of the distal end of the device of FIG. 29 showing an open valve.</figref><figref num="31A">FIG. 6 is a detailed view of an alternative embodiment of the distal end of the device of FIG. 29 showing a closed valve.</figref><figref num="31B">FIG. 6 is a detailed view of an alternative embodiment of the distal end of the device of FIG. 29 showing an open valve.</figref><figref num="32">FIG. 5 is a partial cross-sectional side view of yet another exemplary embodiment of a device for treating a body lumen.</figref><figref num="33A">FIG. 6 is a partial cross-sectional side view of yet another exemplary embodiment of a device for treating a body lumen, having a guide wire inserted into the device.</figref><figref num="33B">FIG. 5 is a partial cross-sectional side view of yet another exemplary embodiment of a device for treating a body lumen, having a guide wire removed from the device.</figref><figref num="34A">29 is a side view of an alternative embodiment of a handle that may be provided on a device such as the device of FIGS. 29-33A.</figref><figref num="34B">29 is a side view of an alternative embodiment of a handle that may be provided on a device such as the device of FIGS. 29-33A.</figref><figref num="34C">29 is a side view of an alternative embodiment of a handle that may be provided on a device such as the device of FIGS. 29-33A.</figref><figref num="35">FIG. 5 is a side view of the distal end of yet another exemplary embodiment of a device that treats a lumen of the body.</figref><figref num="36">FIG. 5 is a perspective view of the distal end of yet another exemplary embodiment of a device that treats a lumen of the body.</figref><figref num="37A">FIG. 6 is a detailed view of the device of FIG. 36 showing a valve in the open position.</figref><figref num="37B">FIG. 6 is a detailed view of the device of FIG. 36 showing a valve in closed position.</figref><figref num="37C">It is sectional drawing of the apparatus of FIGS. 36-37B along the line 37C-37C of FIG. 37B.</figref><figref num="38">It is sectional drawing of the alternative embodiment of the apparatus of FIGS. 36-37C.</figref><figref num="39">FIG. 5 is a perspective view of the distal end of yet another exemplary embodiment of a device that treats a lumen of the body.</figref>
With reference to the drawings, FIGS. 1-2D show injecting fluid into the lumen of the body and / or of the lumen of the body (not shown), such as blood vessels, large arteriovenous fistulas, tubular implants, etc. Shown is an exemplary first embodiment of a device 10 for treating a lumen of a body that removes thrombosis, objects and / or obstructive substances from the inside. In general, the device 10 is carried by a catheter, sheath case, or other tubular outer member 20, a core wire, shaft, or other elongated inner member 30, and inner and / or outer members 20, 30. Has an expandable balloon 50, and. The device 10 is used to perform various procedures or other functions, for example, in the lumen of the body, such as to reduce or eliminate the need to replace multiple devices during the procedure in the lumen of the body. It may be operational in multiple modes. For example, the device 10 is a fluid in the lumen of the body, eg, a first mode (FIG. 2A) that minimizes the contour of the device 10 to facilitate introduction into the patient's body, as further described below. It may be operable in a second mode of injecting (FIG. 2B) and a third mode of removing material in the lumen of the body (FIGS. 2C and 2D).
As best visible in FIG. 1, the outer member 20 has a proximal end 22, a distal end 24 sized for introduction into the lumen of the body, and a proximal end 22 and a distal end 24. It has a first lumen 26, which extends between them. The outer member 20 may have a substantially uniform structure along its length, or, optionally, the structure may be modified. For example, the proximal portion of the outer member 20 may be substantially rigid or semi-rigid to facilitate the advancement of the device 10 from the proximal end 22 and / or the distal portion of the outer member 20. May have flexibility, for example, to facilitate bending and / or advance through a meandering structure so that there is no substantial risk of kinking or buckling. In an exemplary embodiment, the outer member 20 may be formed from, for example, a metal, a material such as a plastic such as PEEK or Grilamed L25, or a material such as a composite material. The outer member 20 may have a length of about 30-130 cm and an outer diameter of about 1.2-2.0 mm, and the first lumen 26 may have a diameter of about 1.0-1.8 mm.
The medial member 30 may have a proximal end 32, a distal end 34, and optionally a second lumen 36 extending between the proximal end 32 and the distal end 34. The 2 lumen 36 may be sized to slidably accept a guide wire or other rail (not shown) having a diameter of, for example, about 0.3 to 1.0 mm through it. The inner member 30 of the outer member 20 is described further below, for example, such that an annular space is defined between the outer member 20 and the inner member 30 to allow one or more fluids to pass through it. It has a size that is slidably acceptable within the first lumen 26. The inner member 30 has a predetermined length with respect to the outer member 20 so that the proximal end 32 of the inner member is received within the proximal end 22 of the outer member or extends proximally beyond the proximal end 22. And the distal end 34 of the inner member extends distally beyond, for example, the balloon 50 and beyond the distal end 24 of the outer member.
The balloon 50 has a proximal end 52 coupled to the distal end 24 of the outer member, a distal end 54 defining the outlet 58, and an inner 56 communicating with the first lumen 26 and the outlet 58. ing. The proximal end 52 of the balloon 50 is made a fluid airtight connection by one or more, for example, adhesive bonding, tight fitting, ultrasonic welding, melting, engagement with a peripheral sleeve or other connector (not shown). To provide, it may be attached or fixed to the distal end 24 of the outer member 20.
The distal end 34 of the inner member 30 may, for example, provide the distal end 54 of the balloon 50 such that the outlet 58 defines an annular passage between the distal end 54 of the balloon 50 and the distal end 34 of the inner member 30. You may extend through. The size of the outlet 58 may be approximately the same as the size of the first lumen 26, or alternative, the outlet 58 to the desired degree of friction or resistance to the flow of fluid through the outlet 58, as desired. Depending, it may be larger or smaller than the first lumen 26. For example, when the outlet 58 is open to allow fluid flow, the resistance to the fluid flowing through the outlet 58 replaces the balloon 50 with an outlet 58, as described further below. It may be substantially smaller than the resistance that expands the balloon 50 so that the fluid preferentially flows through it.
Alternatively, as shown in FIGS. 27A and 27B, a device 10'with an outer member 20'and / or an inner member 30' with multiple lumens may be provided. For example, as best visible in Figure 27B, the outer member 20'is a separate first cavity 26a' that accepts the inner member 30'slidingly and carries fluid within the inner 56' of the balloon 50'. It may have an inflated lumen 26b'and. This alternative may reduce the clearance that may be required around the inner member 30'in the first lumen 26a', thus making it possible to reduce the contour of the outer member 20'. In addition or as an alternative, the inner member 30'carries fluid over the guide wire 99' or the first instrument lumen 36a', which accepts the guide wire 99'or other instruments, and the distal end 34' of the inner member 30'and /. Alternatively, it may have a second fluid lumen 36b'to suck.
Referring to FIG. 1, the distal end 54 of the balloon 50 is integrally formed on the main wall of the balloon 50 (which defines the interior 56) and, optionally, on the proximal end 52 of the balloon 50. Good. For example, the balloon 50 and its proximal and distal ends 54 may be molded, blow molded, or formed from a single tubular compartment of material. Optionally, the main wall of the balloon 50 is compared to the distal end 54 so that, for example, the distal end 54 of the balloon 50 maintains its original size and / or shape when the balloon 50 is expanded. It may be relatively thin.
For example, the distal end 54 of the balloon 50 may be thick enough and / or rigid enough to provide a seal ring over the distal end 54. Optionally, the distal end 54 of the balloon 50 may have one or more features that, for example, surround or demarcate the outlet 58 and / or reinforce the distal end 54. For example, the distal end 54 may be attached or secured to, for example, the distal end 54 by, for example, adhesive bonding, tight fitting, ultrasonic welding, melting, etc., within or around the distal end 54. May have a collar or sleeve (not shown, see eg sleeve 155 shown in FIG. 7).
The balloon 50 expands to, for example, various sizes and / or shapes, eg, based on the amount of fluid and / or pressure within the balloon 50's internal 54 and / or relative position of the inner member 30, as described further below. It may be formed from an elastic material to provide a flexible or semi-flexible balloon that can be made. Alternatively, the balloon 50 is an inflexible balloon that expands to, for example, a predetermined size when inflated independently of pressure (when the minimum volume and / or pressure is introduced to achieve a predetermined size). May be formed from a substantially inelastic material to provide. Such an inflexible balloon 50 can expand to a predetermined size, even if it inflates to a relatively high pressure, until the balloon 50 bursts or tears, for example at a pressure of at least 10, 20, or 30 atmospheres. ..
As further described below, for example, the sealing member 38 moves relative to the balloon 50 as the inner member 30 moves, for example to selectively open and close the outlet 58 of the balloon 50 to provide a valve. As possible, one or more sealing members 38 are carried over the distal end 34 of the inner member. The sealing member 38 may be formed of a flexible material that may facilitate engagement with the distal end 54 of the balloon, such as an elastomeric material such as silicone or plastic such as PEBAX.
As best visible in FIG. 1, the first seal member 38a may be provided on the inner member 30 proximal to or adjacent to the second seal member 38b. The sealing member 38 may be located adjacent to the distal tip 35 of the inner member 30 or may extend beyond the distal tip 35. The distal tip 35 (or a sealing member that extends beyond the distal tip 35) is in the patient's body with little risk of the distal tip 35 perforating or damaging the wall of the body lumen through which the distal tip 35 passes. To facilitate the advancement of the device 10, for example, it may be rounded, softened, and may be substantially non-traumatic, such as a "J" -shaped tip (not shown).
The sealing member 38 may have a size larger than, for example, the distal end 54 of the balloon 50, which is larger than the inner diameter of the outlet 58, eg, the outer diameter. As shown in FIG. 1, the sealing members 38 are arranged at sufficient spacing from each other so that the distal ends 54 of the balloon 50 float freely between the sealing members 38. When the inner member 30 is guided axially, one of the sealing members 38 may engage or touch the distal end 54 of the balloon 50. The seal member 38 may have a tapered shape to facilitate seating or other engagement with the distal end 54 by the seal member 38.
For example, further referring to FIG. 2A, in the inner member 30, the first seal member 38a pushes or contacts the distal end 54 and the second seal member 38b is spaced from the balloon outlet 58. It can be guided distally to the first or distal position to be placed. As shown, the inner member 30 can be advanced distally so that the first seal member 38a pushes the distal end 54. Since the outer diameter of the first sealing member 38a is larger than the inner diameter of the distal end 54, the first sealing member 38a pushes the distal end 54 of the balloon 50 away from the proximal end 52, thereby the balloon 50. Spread out. This structure can minimize or reduce the contour of the balloon 50, for example to facilitate introduction into the patient's body. In this first position, the first sealing member 38a may substantially seal the outlet 58, but instead, the first sealing member 38a may have the first sealing member 38a seated relative to the distal end 54. Even when pushing the distal end 54, it may have at least one axial groove or other feature that allows at least some fluid to pass through the outlet 58.
Referring to FIG. 2B, the inner member 30 is located, eg, proximal to the first position, so that the distal end 54 of the balloon 50 is located between the sealing members 38a, 38b and the outlet 58 is substantially open. Can be guided axially to two positions. Thus, the fluid introduced through the first lumen 26 of the outer member 20 passes through the inner 56 of the balloon, eg into the lumen of the body, at the distal end 54 of the balloon and the distal end 24 of the inner member. Outflow from exit 58 over the distal tip 35 between.
As shown in FIG. 2C, the inner member 30 may be proximally guided to a third position, eg, close to the second position, where the second sealing member 38b engages the distal end 54 of the balloon 50. Virtually seals outlet 58 from the flow of fluid through it. Therefore, some fluid introduced through the first lumen 26 flows into the inside 56 of the balloon and expands the balloon 50. Optionally, as shown in FIG. 2D, once the balloon 50 is inflated, the inner member 30 is further proximal to an unspecified number of positions where, for example, the second sealing member 38b continues to seal the outlet 58. The size and / or shape of the balloon 50 may vary. For example, as shown in FIG. 2C, when the inner member 30 is in the third position, the balloon 50 is elliptical or approximately by carrying a predetermined volume of fluid into, for example, the inside 56 of the balloon 50. It may be inflated to a spherical shape. If the balloon 50 is flexible, a volume of any of the desired ranges may be carried within the interior 56 to expand the balloon 50 to the desired diameter.
Further referring to FIG. 2D, when the inner member 30 is subsequently guided further proximally, the distal end 54 of the balloon 50 (captured between the sealing members 38) becomes proximal, i.e. the balloon 50. Guided towards the proximal end 52 of the balloon 50, thereby compressing the balloon 50 in the axial direction and further expanding the balloon 50.
As shown in FIG. 6A, the wall of balloon 50 may have a substantially uniform wall thickness between the proximal end 52 and the distal end 54. Thus, when the balloon is compressed, the proximal end 52 and / or the distal end 54 of the balloon 50 may be at least partially flipped inside the inner 56 of the balloon 50, as shown in FIG. 2D. Thus, the wall of the balloon 50 may be folded over the outside of the proximal end 52 and / or the distal end 54 as the inner member 30 is guided proximally from the third position.
Alternatively, as shown in FIG. 6B, the thickness of the balloon 50a may decrease along its length, eg, from the proximal end 52a and the distal end 54a towards the central region 55a of the balloon 50a. getting thin. Therefore, the region of the balloon 50a immediately adjacent to the proximal end 52a and the distal end 54a may be relatively rigid compared to the central region 55a. When the balloon 50a is compressed after expansion, the region immediately adjacent to the proximal end 52a and the distal end 54a resists flipping of the balloon 50a, and the thinner central region 55a is larger than the balloon 50 in FIG. 6A. Can be extended to diameter.
In the further alternatives shown in FIGS. 6C and 6D, the region of the balloon 50b, 50c immediately adjacent to the proximal end 52b or 54b and / or the distal end 52c or 54c is to reduce flipping and / or , To preferentially control the expansion of the balloons 50b, 50c, to reinforce the base of the balloons 50b, 50c, for example by further having additional material. For example, in FIG. 6C, the composite material 53b may or may be embedded in the balloon material adjacent to the proximal end 52b and the distal end 54b, whereas in FIG. 6D it is identical to the rest of the balloon 50c. An additional layer of material 53c, which may be a material or a different material, has been added. The layer may be attached to the balloon 50c, eg, similar to the materials and methods described elsewhere in the specification for attaching the balloon 50c to the outer member 20.
Referring to FIG. 1, a handle or hub 60 may be coupled or provided on the proximal end 22 of the outer member 20, for example to operate the outer member 20 and / or the entire device 10. The handle 60 may have an ergonomic shape, eg, to facilitate holding and / or manipulating the handle 60, and may include one or more controls or actuators that actuate the components of device 10. Have. For example, as shown, the pull handle 62 may be provided adjacent to the main handle 60 coupled to the inner member 30. Therefore, in order to move the inner member 30 to the various positions described above, the pull handle 62 may be pushed or pulled, eg, far away to guide the inner member 30 to the first position shown in FIG. 2A. It may be pushed to the position and may be pulled proximally to guide the inner member 30 to the second and third (or even more proximal) positions shown in FIGS. 2B-2D. Alternatively, as in the embodiments illustrated in FIGS. 11 and 14, a slide actuator (not shown) guides the inner member 30 in the axial direction with respect to the handle 60 and the outer member 20 to guide the inner member 30. It may be provided on a handle 60 coupled to. In a further alternative, a wheel or other actuator may be provided to guide the inner member 30 in the axial direction with respect to the outer member 20.
The pull handle 62 and / or the inner member 30 may be urged into one of the positions shown in FIGS. 2A-2D, for example by one or more springs or other urging mechanisms (not shown) within the handle 60. .. For example, the inner member 30 may be urged to the second (injection) position, but may be guided to another position by overcoming the urging force. Alternatively, the handle 60 provides tactile feedback and / or one or more features (not shown), such as pockets, notches, etc., to detachably secure the inner member 30 to one of the positions. May have a part. In addition or as an alternative, the handle 60 may have one or more visual markers (not shown), eg, to inform the user when various positions will be realized. In a further alternative, for example, the first seal member 38a may be removed if the contour of the device 10 being introduced is okay and / or to simplify the operation of the device 10 and the first position May be removed.
Continuing with reference to FIG. 1, the handle 60 is for connecting one or more fluid sources to device 10, such as an injection medium source, a vacuum source and / or a diagnostic agent source and / or a therapeutic agent source (not shown). May have one or more ports of. For example, as shown, the side port 64 may communicate with the first lumen 26. The side port 64 is one or more connectors (not shown) to facilitate the coupling of one or more fluid sources to the side port 64, for example a Luer lock connector, and / or fluid from the side port 64. It may have one or more seals, such as a hemostatic seal, to prevent leakage.
A syringe or other fluid source (not shown) delivers fluid through the first lumen 26 into the inside 56 of the balloon 50 and / or through the outlet 58, depending on the location of the inner member. May be coupled to side port 64 to allow. For example, when the inner member 30 is in the second (injection) position, for example, a radiation opaque contrast agent, a sound-generating contrast agent, or fluoroscopy, ultrasound, or other external imaging is used. Other fluids that facilitate observation may be transported into the body lumen through the first lumen 26 and outlet 58. Such materials may facilitate monitoring of device 10 while advancing through the patient's body into the lumen of the target body and / or treatment of the body lumen, as further described below. It may be easier to identify the state of. With the inner member 30 in the third position, the same fluid may be carried through the first lumen 26 to expand the balloon 50, or the contrast agent source is the expansion and / or of the balloon 50. It may be replaced with a different fluid source, for example a salt water syringe, to facilitate folding.
Alternatively, a plurality of ports communicating with the first lumen 26 may be provided so that, for example, various fluids can be selectively transported through the first lumen 26 according to the desired function. For example, the contrast agent source and the salt water source may be coupled to different ports such that each fluid is carried independently according to the position of the inner member 30 without exchanging the sources. Alternatively, one or more therapeutic sources may be coupled to side port 64 (or a separate port) to carry the drug into the lumen of the target's body, eg, when needed.
Optionally, the handle 60 has one or more seals, bushings, etc. to facilitate the relative movement of the outer and inner members 20 and / or to seal the first lumen 26. You can do it. For example, as shown in FIG. 1, an o-ring 66 capable of guiding the inner member 30 when moving in the axial direction with respect to the outer member 20 and the handle 60 may be provided between the outer member 20 and the inner member 30. .. The o-ring 66 may be located proximal to the side port 64, thereby between the outer member 20 and the inner member 30 to prevent leakage of fluid introduced into the side port 64 from the handle 60. Provides a substantially fluid-tight seal.
As shown, the pull handle 62 has a port 63 that accepts guide wires and other rails (not shown) through it. For example, the guide wire may be introduced into the second lumen 36 of the inner member 30, eg, from port 63 or by loading into the distal end 34 of the inner member. Port 63 provides one or more seals, such as hemostatic seals (not shown), that adapt to the passage of guide wires without creating a substantial risk of blood or other bodily fluids leaking from the second lumen 36. May have.
Optionally, the outer member 20 is above the distal end 24, eg, if the guide wire lumen that receives the guide wire or other rail (not shown), eg, the inner member 30, does not have a second lumen 36. Has one or more additional lumens (not shown) extending between the proximal end 22 and the distal end 24, such as an inflatable lumen that carries the inflatable medium to another balloon (not shown). Good.
In addition or as an alternative, if desired, the device 10 may have one or more markers that facilitate the positioning and / or advancement of the device 10 in use. For example, on the distal end 24 of the outer member, on the balloon 50 or the inner member 30 within the distal tip 35, on the balloon 50, for example on the proximal end 52 and / or the distal end 54, and / or , One or more radiation opaque markers may be provided on the seal member 38. Alternatively, one or more components of device 10 may be formed from a radiation opaque material or other material that can facilitate imaging of device 10 in use. For example, a radiation opaque marker and / or material can be seen through fluorescence, for example, when positioning the balloon 50 (either before or after expansion) and / or when injecting fluid through outlet 48. It may be easy to position or image the device 10 using a method or other X-ray imaging. Alternatively, sound wave generating markers and / or materials may be provided to facilitate imaging using ultrasound or similar imaging techniques.
With reference to FIGS. 2A to 2D continuously, for example, an apparatus 10 which is any embodiment described in the present specification and is not necessarily limited to the embodiment illustrated and described below with reference to FIG. 1. An exemplary method of treating a body lumen (not shown) using is described herein. The lumen of the target body may be a blood vessel such as a vein or artery, such as a large arteriovenous fistula, a tubular xenograft, or a composite tubular graft. For example, the lumen of the body may be a passage communicating between adjacent arteries and veins (not shown), for example, in the arm or other area of a dialysis patient. Alternatively, the lumen of the body may be a blood vessel within the patient's vascular structure, such as a peripheral blood vessel in the patient's leg, a cerebral blood vessel. In a further alternative example, the material may be a stone in the patient's urethra or another foreign body to be removed from the patient's body.
Optionally, the lumen of the body may be accessed using one or more additional instruments (not shown) that can be part of the system or part of a kit that includes device 10. For example, an introducer sheath case, guide catheter, or other tubular member (not shown) may be introduced adjacent to the target site from which the substance should be removed, or the patient's vascular structure or body. It may be introduced anywhere in the patient's body to access other passages leading to the lumen of the patient. If the lumen of the body is placed in the patient's peripheral blood vessels, a percutaneous puncture or cut may be a needle or other at a peripheral location, such as the femoral artery, carotid artery, or other site of entry (not shown). It may be formed using an instrument (not shown) and the introducer sheath case may be placed through a peripheral puncture to provide access. The device 10 may advance from the site of entry through the patient's puncture, for example, alone or with the help of a guide catheter, guide wire, etc. (not shown).
For example, to facilitate guiding the device 10 from the site of entry to the lumen of the target body, a guide catheter, microcatheter or other tubular body can be used with conventional methods to guide the device 10 from the site of entry to the lumen of the body. It may be placed up to the lumen. In addition or as an alternative, guide wires (not shown) may be arranged, if required, from the site of entry to the lumen of the body, for example, if the inner member 30 has a second lumen 36. The tubular body may be coupled to a vacuum source and used for suction, for example, to capture the material removed by device 10.
First, referring to FIG. 2A, device 10 is advanced into the body's lumen along with the inner member 30 in a second or distal position, eg, the balloon 50 extends to reduce its contour. Good. Optionally, if the first sealing member 38a does not seal the outlet 58, one or more fluids are transported into the body lumen, eg, to facilitate imaging and / or positioning of device 10. Good. Alternatively, the inner member 30 may be guided to a first position, as shown in FIG. 2B, and a fluid may be carried for ease of imaging.
For example, by a first lumen 26 between the outer member 20 and the inner member 30 to facilitate the location of the substance 92 and / or the size of the substance 92 using fluorescence fluoroscopy. A radiopaque contrast agent or other fluid may be carried into the lumen of the body through a defined annular passage. A marker (not shown) on device 10 is removed before the balloon 50 is inflated, for example to facilitate verification that the balloon 50 is positioned distal to or beyond the material. Facilitates positioning of the balloon 50 with respect to the material intended to be. If necessary, the inner member 30 allows, for example, the infusion of contrast medium until the balloon 50 is placed beyond the obstructive material targeted for removal, eg, to facilitate further advancement. It may be guided back and forth between the first and second positions to reduce the contour of the.
Optionally, the device 10 may be introduced through a guide catheter or other annular member (not shown) having a lumen communicating with the vacuum source. With the balloon 50 placed beyond the guide catheter but not yet inflated, a vacuum source may be initiated to aspirate material within the body's lumen during subsequent procedures.
With reference to FIG. 2C, the inner member 30 may be guided to a third position, thereby sealing the outlet 58, and the balloon 50, for example, the balloon 50 substantially completely crosses the lumen of the body. It may be inflated within the lumen of the body to extend. The entire device 10 may then be retracted to attract obstructive material from the body lumen, for example to be aspirated into the guide catheter or removed from the body lumen. As shown in FIG. 2D, if necessary, the inner member 30 may be pulled to further expand the balloon 50, for example to substantially engage the wall of the body's lumen. Additional pressure from the balloon 50 may facilitate the separation of adhering material from the walls of the body's lumen and allow its removal.
When the material is removed, the inner member 30 is returned towards the second position and fluid may be introduced to observe the amount of material removed and / or remaining in the lumen of the body. .. If additional material should be removed, the inner member is guided back to the first position, for example, if the device 10 needs to be advanced through additional material to be removed. Once the balloon 50 has been placed over the material, the process may be repeated as needed.
If necessary, the obstructive material may be treated before, during or after withdrawal, eg, at least partially dissolved and may be softened. For example, a therapeutic agent to at least partially dissolve or dissociate a thrombus or other relatively flexible substance before it is removed by the balloon 50, and / or to treat the walls of the body's lumen. May be transported into the lumen of the body through the first lumen 26 of the outer member 20.
Since a single lumen, or first lumen 26, is used for both the expansion of the balloon 50 and the transport of fluid into the body's lumen, the contours of the outer member 20 and thus the entire device 10 , May be smaller than devices with separate inflated and infused lumens. Further, even though the second lumen 36 of the inner member 30 can be used for fluid injection, this is beyond the device 10 as the guide wire almost fills the second lumen 36. It is generally necessary to remove the guide wire into which the is introduced. Since the first lumen 26 can be used for injection, the guide wire may remain in the second lumen 36 during the procedure, thereby replacing the number of guide wires or other equipment. Potentially reduce the number of times. In addition, the device 10 may remain on the guide wire, facilitating the advancement of the device 10 into the body lumen of another target for which treatment is intended.
In various alternatives, the valve formed by the seal member 38 and the outlet 58 of the balloon 50 may be provided at other locations on the device 10 if desired. For example, the structure may be inverted such that the outlet 58 and the seal member 38 can be placed close to the balloon 50. For example, a sealing member (not shown) may be provided on the distal end 24 of the outer member 20 and the distal end 54 of the balloon 50 may be secured to the distal end 34 of the inner member 30 (also shown). not) in the state, the proximal end 52 of the balloon 50 is obtained suspended adjacent to the seal member that. Thus, the movement of the inner member 30 with respect to the outer member 20 may selectively engage the proximal end of the balloon with the seal member or disengage the proximal end of the balloon from the seal member. This allows injection from the first lumen 24 when the proximal end of the balloon does not engage the seal member, and allows the balloon to inflate when the proximal end of the balloon engages the seal member. To. Alternatively, as shown in FIGS. 36-37C, the outlet 1027 may selectively engage the sealing member 1038 on the inner member 1030 proximal to the balloon 1050, as described below. It may be provided on the distal end of 1024.
In another alternative, the balloon (not shown) extends proximal to the balloon 50 and over the distal end 24 of the outer member 20, if necessary, as in other embodiments described herein. / Or may be located distal to the balloon 50 and above the distal end 34 of the medial member 30. These balloons are, for example, inflexible high-pressure balloons for inflating the lumen of the body, or the lumen of the body to isolate one or more areas of the lumen of the body before injecting fluid into it. It may be a flexible balloon that is elastic to substantially seal.
With reference to FIGS. 3-4B, with device 10 of FIG. 1 having an outer tubular member 20 ", an inner member 30", and an expandable balloon 50 "carried by the inner and outer members 20", 30 ". Another embodiment of a device 10 "that treats a body cavity that may be similarly constructed is shown. As in the previous embodiment, the device 10 "is a balloon 50, for example, to remove substances, to widen the lumen of the body, or to treat the lumen of the body, as further described below. It may be operational in multiple modes: a first mode that expands the "" (FIG. 4A) and a second mode that transports the fluid into the lumen of the body (FIG. 4B).
As best visible in Figure 3, the outer member 20 "has a proximal end 22", a distal end 24 "with a size for introduction into the lumen of the body, a proximal end 22" and a distant end. It has a first lumen 26 "extending between the positions 24". The medial member 30 "also has a proximal end 32" and a distal end 34 "and optionally extends between the proximal end 32" and the distal end 34 ". , A second lumen 36 which may be sized to allow a guide wire or other instrument (not shown) to be slidably moved through it.
The balloon 50 "is inside communicating with the proximal end 52" coupled to the distal end 24 "of the outer member, the distal end 54" with the outlet 58 ", and the first lumen 26" and the outlet 58 ". It has 56 and. The distal end 54 "of the balloon 50" is integrally formed on the main wall of the balloon 50 "(which defines the internal 56" and, optionally, on the proximal end 52 "of the balloon 50". You can. The balloon 50 ", like other embodiments herein, may be formed from an elastic material, eg, to provide a flexible or semi-flexible balloon, or, eg, to provide a semi-flexible balloon. It may be formed from a substantially inelastic material.
Sleeve 70 "on the distal end 54" of the balloon 50 "to surround or define the outlet 58" and / or to reinforce the distal end 54 ", as best visible in FIGS. 4A and 4B. May be attached or provided. For example, the sleeve 70 "may be the length of a substantially rigid tubular or other tubular attached to the inner surface of the distal end 54". The distal end 34 "of 30" may extend through the sleeve 70 "so that, for example, the outlet 58" defines an annular passage between the sleeve 70 "and the distal end 34" of the inner member 30 ". ..
As shown, the sleeve 70 "is a sleeve to define the outlet 58" as the first end 72 "of the sleeve 70" extends proximally from the distal end 54 "to the inside 56" of the balloon 50 ". It is longer than the distal end 54 "so that the second end 74" of the 70 "extends distally from the distal end 54". The first end 72 "of the sleeve 70" is as described further below. For example, the side wall of the sleeve 70 "may have one or more holes or other openings 73" (two shown) to provide a fluid passage.
A sealing member 38 "may be supported on the distal end 34" of the inner member, and the inner member 30 "selectively opens, for example, an outlet 58" to provide a valve, as further described below. The sealing member 38 "is movable relative to the balloon 50" when moving to close. For example, the seal member 38 "may have a size larger than the inner diameter and / or outlet 58" of the sleeve 70 ", eg, outer diameter. Optionally, the seal member 38" is an outlet by the seal member 38 ". It may have a tapered shape to facilitate seating or other engagement with the 58 . As an addition or alternative, the second end 74 "of the sleeve 70" is tapered to facilitate and / or improve the seating and / or sealing of the outlet 58 "by the sealing member 38", for example. May have.
The sealing member 38 ", as in other embodiments herein, may be formed, for example, from a flexible material that can improve engagement with the second end 74" of the sleeve 70 ". In addition, the sealing member 38 "(or inner member 30") is rounded, softened, slanted, or "J" shaped, or otherwise curved, as in other embodiments herein. It may have a nearly non-traumatic distal tip 35 ", such as a tip (not shown).
In addition, a stop 78 "may be provided on the distal end 34" of the inner member to limit the distal movement of the inner member 30 "with respect to the distal end 54" of the balloon 50 ". FIGS. 4A and 4B. The stopper 78 "is located inside at a distance from the seal member 38" so that the distance between the stopper 78 "and the seal member 38" is greater than the length of the sleeve 70 ". It may be attached to the distal end 34 "of the member, so that the distal end 54" of the balloon 50 "selectively opens and closes the outlet 58", as in other embodiments herein. It may float freely between the seal member 38 "and the stop 78" to provide the valve.
For example, as shown in FIG. 4A, the inner member 30 "to guide the seal member 38" to engage the second end 74 "of the sleeve 70" to substantially seal the outlet 58 ". The seal member 38 "and / or the sleeve 74" may be guided proximally, for example, one or both of the seal member 38 "and / or the sleeve 74" to provide a substantially fluid-tight seal. Due to the deformation of, it may have sufficient flexibility to contact each other with a relatively high contact pressure. Therefore, in this position, it was transported into the first cavity 26 "of the outer member 20". The fluid may remain inside the balloon inside 56 "to expand the balloon 40".
Referring to FIG. 4B, the inner member 30 "may be guided distally until, for example, the stopper 78" contacts the sleeve 70 ", thereby opening the outlet 58". Thus, the fluid carried into the first lumen 26 "flows through the balloon interior 56", sleeve 70 "and outlet 58" over device 10 "and into the body lumen as illustrated. , Stop 78 "and sleeve 70" have substantially flat and / or blunt end faces that come into contact with each other, for example to provide a relatively low contact pressure between stop 78 "and sleeve 70". The hole 73 "may have a fluid carried through the inside 56" of the balloon into the sleeve 70 "if there is a constraint or seal between, for example, the contact end face of the stop 78" and the sleeve 70 ". It flows in and flows out from Exit 58 .
In one embodiment, fluid may be transported from outlet 58 "with or without expansion of balloon 50". Alternatively, the size of the hole 73 "is carried through it so that the balloon 50" expands, at least partially, while the fluid is carried through the exit 58 "into the lumen of the body. It may be chosen to cause some friction from time to time.
Optionally, the inner member 30 "may advance to push the stop 78" against the sleeve 70 "and to push the distal end 54" of the balloon 50 "from the proximal end. Thereby, the balloon 50 is extended. This structure may minimize or reduce the contour of the balloon 50 ", for example to facilitate injection into the patient's body. Alternatively, the distal advance of the inner member 30" may be the balloon 50. It may be restricted, for example, by an actuator (not shown) on the proximal end of the device 10 "so that the outlet 58" is opened without overextending the "device 10", eg, the device 10 "is an outer member. It may have a handle or hub (not shown) on the proximal end of 20 "and an actuator on the handle (also not shown) to guide the device 10" between the open and closed positions. It may be mobile. Optionally, the actuator may be urged to any one of the positions, as in other embodiments herein.
Referring to FIGS. 5A-5C, an exemplary method of treating a body lumen 90, for example using device 10 "(or any of the other devices herein), is shown. The body lumen 90 may be, for example, a blood vessel such as a vein or artery, such as a large arteriovenous fistula, a tubular heterologous implant, or a implant such as a composite tubular implant. For example, the body lumen 90 may be, for example, dialysis. It may be a tube connecting between adjacent arteries and veins in the patient's arm or other area (not shown). Alternatively, the lumen 90 of the body is, for example, a peripheral blood vessel in the patient's leg, a cerebral blood vessel. It may be a blood vessel in the patient's vasculature, such as.
Optionally, the lumen 90 of the body may be accessed using one or more additional instruments (not shown) that may be part of a system or kit with device 10 eg, introducer. A pod case, guide catheter, or other tubular member (not shown) may be introduced adjacent to the target site or into the patient's vascular structure or other duct that communicates with the body lumen. It may be introduced somewhere in the patient's body to provide access. If the lumen 90 of the body is placed within the patient's peripheral blood vessels, a percutaneous puncture or incision may be made, eg, a vein in the thigh. May be formed using a needle or other instrument (not shown) at a peripheral location such as, carotid artery, or other site of entry (not shown), because the introducer pod case provides access. The device 10 "may be placed in a peripheral position through a puncture. The device 10" is advanced from the site of entry through the patient's luminal structure, eg, alone or with the help of a guide catheter, guide wire, etc. (not shown). May be done.
For example, a guide catheter, microcatheter or other tubular body (not shown) uses conventional methods to facilitate guiding the device 10'from the site of entry into the lumen 90 of the target body. And may be placed in the lumen 90 of the body from the site of entry. In addition or as an alternative, the guide wire 99 ", for example, the inner member 30" is the second lumen 36 "(not shown, FIGS. 3-4B). If you have (see), it may be located from the site of entry to the lumen 90 of the body, as shown.
Referring to FIG. 5A, in the first illustrated method, the lumen 90 of the body comprises an occlusion 94, such as a chronic complete occlusion in a blood vessel, and the guide wire 99 "includes, for example, using a known method. From the site of entry to the lumen 90 of the body may be tracked through the obstruction 94. These disorders perform conventional dye injections to facilitate imaging because there is no flow through the lumen 90 of the body. The procedure can be particularly difficult due to the lack of opportunity. In addition, it is difficult to track and / or position the guide wire 99 "and / or device 10" within the lumen 90 of the body without the use of dye injection. Can be.
First, the device 10 "may be advanced into the lumen 90 of the body with the folded balloon 50". For example, the device 10 "was pre-positioned through the occlusion 94, eg, until the distal end 54" of the balloon 50 "exceeded the occlusion 94 and entered the area of lumen 90 of the body, as illustrated. It may be advanced beyond the guide wire 99 .
With the valve open beyond the occlusion 94, the distal end 54 of the balloon 50 "is a radiopaque contrast agent, dye, or other fluid represented by 95, using, for example, fluorescence fluoroscopy. By the first lumen between the outer and inner members 20 ", 30" to facilitate placement of the material in the occlusion 94 and / or the lumen 90 of the body and / or the size of the material. It may be transported into the lumen 90 of the body via a defined annular passage. A marker (not shown) on the device 10 "before the balloon 50 is expanded to facilitate, for example, to see if the balloon 50" is positioned through and / or across the obstruction 94. It may be easier to position the balloon 50 "with respect to the closure 94. If necessary, the inner member 30" facilitates further advancement until, for example, the balloon 50 "is placed beyond the closure 94. Therefore, the injection of contrast medium may be guided anteroposteriorly between the first and second positions to allow the contour of the device 10 "to be reduced.
Thus, the device 10 "can facilitate dye injection beyond the obstruction 94 while keeping the guide wire 99" in place. Unlike device 10 , conventional devices may require removal of guide wires or other devices advancing through blockage 94 to allow dye injection and imaging beyond blockage 94. Then it can be difficult to reintroduce the guide wire or other device returned through a small tube formed through the obstruction 94.
Continuing with reference to FIG. 5A, when device 10 "is positioned by balloon 50" across the occlusion 94, the valve is closed and the balloon 50 "is a body tube, for example to open or treat the occlusion 94. It may be inflated within lumen 90. Optionally, as shown in FIG. 5B, the stent 96 "may be carried by balloon 50" and may be inflated by inflating balloon 50 ". For example, with the valve of device 10 "open, dye 95 may be injected into the lumen 90 of the body to facilitate imaging and positioning of device 10". When the stent 96 "is positioned across the occlusion 94, the valve is closed and the balloon 50" may be inflated to expand the stent 96 "and expand the occlusion 94 (not shown). When the 96 "expands, the balloon 50" is folded and the device 10 "is removed from the body lumen 90 and the patient's body.
If necessary, the occlusive material may be treated, eg, at least partially dissolved and softened, before, during or after withdrawal. For example, in order to at least partially dissolve or dissociate a thrombus or other relatively flexible substance before the therapeutic agent is spread by, for example, the balloon 50 "and / or the stent 96", the outer member 20 ". It may be transported into the lumen 90 of the body through one lumen.
Referring to FIG. 5C, in another method, device 10 may be used as a drug delivery platform for treating obstruction 94, for example, in some applications, to carry a non-restenotic drug without a stent. May be required. As illustrated, the device 10 "has a carrier 98" provided within the lumen 90 of the body and / or beyond the balloon 50 "which can be carried through the obstruction 94". For example, as described above, the device 10 "may advance into the lumen 90 of the body with the balloon 50" and the carrier 98 "in the folded state, for example on the guide wire 99".
With the valve open beyond the obstruction 94 at the distal end 54 of the balloon 50, contrast agent, dye or other fluid 95 may be used, for example, using fluorescence fluoroscopy to obstruct the obstruction 94 and / or the lumen of the body. The 90 may be carried into the lumen 90 of the body to facilitate placement and / or size measurement. When the device 10 "is positioned with the balloon 50" across the occlusion 94, the valve is closed and inflated within the lumen 90 of the body to open the occlusion 94 and carry the carrier 98 ". Is transported, the balloon 50 "is folded and the device 10" is removed from the body lumen 90 and the patient's body. One or more therapeutic agents may be positioned within the carrier 98 "or carried by the carrier 98" and thus may remain within the widened occlusion 94 to treat the lumen 90 of the body.
Alternatively, the drug may be delivered directly from the wall of the balloon 50 ", for example, the drug may provide a porous layer on the balloon 50" in which the drug can be embedded or placed, for example. May be injected through the wall of the balloon 50 .
In another alternative, the agent delivered into lumen 90 of the body may be provided by multiple components that can react as-is or interact with each other when transported together into lumen 90 of the body. .. For example, the first component (or one or more additional components, less than all components of the drug), eg, in the porous layer arranged around the balloon 50 "or on the carrier 98", as described above. , May be carried on the wall of balloon 50 ". The second component (or multiple residual components required for the drug) may be carried via outlet 58" on device 10 ". For example, one or more components. However, after being carried by closing the valve and inflating the balloon 50 in the closure 94, the valve may be opened and fluid carrying one or more residual components may be carried into the body lumen 90. .. Ingredients may then be combined to form reactive agents or agents that can treat the substance of obstruction 94 and / or the lumen 90 of the body.
With reference to FIG. 7, as in other embodiments herein, the outer annular member 120, the inner member 130, and the expandable balloon 150 carried by the inner member 120 and / or the outer member 130 are generally referred to. Another embodiment of the device 110 having a balloon of the body is shown. The device 110 has a first mode of injecting fluid into the lumen of the body, a second mode of expanding the occlusion in the lumen of the body, and / or an obstruction in the lumen of the body, as further described below. It may be operable in a third mode of removing material.
As shown, the outer member 120 may be configured similar to other embodiments herein, with a proximal end 122 and a distal end 124 having a size for introduction into the lumen of the body. And a first lumen 126, which extends between the proximal end 122 and the distal end 124. The inner member 130 has a size that optionally accepts a proximal end 132 and a distal end 134, eg, through which a guide wire or other rail (not shown) can be slidably moved. It has a second lumen 136, which extends between the end 132 and the distal end 134. The inner member 130, for example, as in other embodiments herein, is such that an annular space is defined between the outer member 120 and the inner member 130 for one or more fluids passing through it. It has a size that is slidably acceptable in the first lumen 126 of 120.
The balloon 150 has a proximal end 152 coupled to the distal end 124 of the outer member, a distal end 154 defining the outlet 158, and an inner 156 communicating with the first lumen 126 and the outlet 158. ing. The distal end 134 of the inner member 130 is, for example, the distal end 154 of the balloon 150 such that the outlet 158 defines an annular passage between the distal end 154 of the balloon 150 and the distal end 134 of the inner member 130. May extend through. As shown, the distal end 154 of the balloon 150 has a collar or sleeve 155 that is attached or secured to the distal end 154, for example by adhesive bonding, tight fitting, ultrasonic welding, melting, etc. You can. Optionally, the collar 155 may extend proximally into the interior 156 of the balloon 150 (not shown), and the inner compartment of the collar 155 allows, for example, the passage of fluid from the interior 156 of the balloon through the outlet 158. For facilitation, it may have one or more side ports or other openings (not shown). Alternatively, the distal end 154 of the balloon 150 may be integrally formed with the balloon 150 from a material similar to or different from the main part of the balloon 150, eg, as in other embodiments herein. / Alternatively, it may have other features (not shown).
The balloon 150 is substantially intended to provide an inflexible balloon that expands to a predetermined size when inflated independently of pressure (when a minimum volume is introduced to achieve a predetermined size), for example. May be formed from a non-elastic material. These inflexible balloons 150 have a predetermined size even when inflated at a pressure of at least 10 atm, 20 atm, 30 atm, for example, at a relatively high pressure until the balloon 150 bursts or ruptures. Can be extended to. Alternatively, the balloon 150 may be formed from an elastic material, as in other embodiments described elsewhere herein.
One or more sealing members 138 move relative to the balloon 150, for example, as the inner member 130 moves, to provide a valve that selectively opens and closes the outlet 158 of the balloon 150, for example. As possible, it may be carried over the distal end 134 of the inner member. As shown, a first sealing member 138 is provided on the inner member 130 at the distal end 154 of the balloon and distal to the collar 155. The sealing member 138 is such that the sealing member 138 can substantially engage the collar 155 and / or the distal end 154 of the balloon 150 to substantially seal the outlet 158. It may have a size larger than the distal end 154 of, eg, an outer diameter.
In the illustrated exemplary embodiment, the sealing member 138 may have a tapered shape, for example, on one or both of its proximal and distal ends to provide a conical head on the inner member 130. For example, the tapered shape on the proximal end of the seal member 138 may automatically guide the seal member 138 to sit at the outlet 158 of the balloon 150, for example to improve the fluid airtight seal between them. The tapered shape on the distal end of the sealing member 138 may provide the device 110 with a rounded or substantially non-traumatic tip. In addition or as an alternative, another substantially non-traumatic distal tip (not shown), as in other embodiments herein, extends beyond the first seal member 138 onto the inner member 130. It may be provided, for example, a J -shaped tip as shown in FIGS. 33A and 33B, an inclined tip as shown in FIG. 32, a threaded tip (not shown), and the like.
Referring to FIG. 7, a handle or hub 160 is located on the proximal end 122 of the outer member 120, eg, to operate the outer member 120 and / or the entire device 110, generally as in other embodiments herein. It may be combined or provided. The handle 160 may have a pull handle 162 or other actuator coupled to the inner member 130 to move the inner member 130 to various positions as described below. The handle 160 of the balloon 150 through the first lumen 126, for example, depending on the position of one or more ports, such as the side port 164 for connecting one or more fluid sources to the device 110, and the inner member 130. It may have a syringe or other fluid source for transporting fluid within and / or through outlet 158 inside 156.
Optionally, the handle 160 may guide the inner member 130 between the outer and inner members 120, 130 as it moves axially with respect to the outer member 130 and the handle 160, eg, o-ring 166. It may have the above seal, bushing and the like. In this embodiment, the inner member 130 has a hypotube compartment or other substantially rigid tube 131 attached or coupled to the proximal end 132 of the inner member 130. The tube 131 may be provided with an axis support for the inner member 130, for example, to prevent buckling or twisting when the inner member 130 is guided in the axial direction. The tube 131 facilitates the inner member 130 axially, for example, if the tube 131 has a nearly smooth or lubricated outer surface that easily slides through the o-ring 166 while maintaining a fluid-tight seal between them. It is also possible to move it.
In addition or as an alternative, if desired, the device 110 may have one or more markers that facilitate the positioning and / or advancement of the device 110 in use. For example, as shown in FIG. 7, a radiation opaque marker band 137 may be attached, eg, within the balloon interior 56, around the distal end 134 of the medial member 130. As shown, the marker 137 may be attached adjacent to both the proximal end 152 and the distal end 154 of the balloon 150, and the marker 137 may be attached to the balloon 150 before expanding the obstruction within the lumen of the body. It may be easier to monitor the position. In addition or as an alternative, the core wire of the spiral member 170 may be formed from a radiation opaque material and / or the radiation opaque filler material, BAS04, may form the spiral member 170, if necessary. May be dispersed in the plastic material used to do so.
Unlike the previous embodiment, the device 110 has a spiral member 170 coupled between the outer member 120 and the inner member 130 within the inner 156 of the balloon. The spiral member 170 may be movable from a relatively small contour to an extended spiral shape, as will be further described below, for example, as shown in FIG. As shown, the spiral member 170 is a wire having a first end 172 coupled to the distal end 124 of the outer member 120 and a second end 174 coupled to the distal end 134 of the inner member 130. A tube or other filament. For example, the spiral member 170 may be formed from a core wire having a tube or sleeve formed or attached around the wire. Alternatively, the helical member 170 may be formed from a plurality of filaments (not shown) wound around each other, or may be coupled together to act as an integral structure. In an exemplary embodiment, the helical member 170 may be made of thermoplastic, thermosetting, and / or other plastic, glass, metal, or composite material.
Between the first end 172 and the second end 174, the spiral member 170 may spirally wrap around the inner member 130 one or more times. As shown, it will be appreciated that the spiral member 170 may have more or less windings, although the spiral member 170 extends about one and a half revolutions around the inner member 130.
As shown, the first end 172 of the spiral member 170 is, for example, by one or more of adhesive bonding, ultrasonic welding, soldering, and a tight fit (eg, one or more first ends around the distal end 124). Insert the first end 172 into the annular groove, hole, or pocket (not shown) of the distal end 124 (by wrapping the 172), eg, by overlapping bands or collars (also not shown). By melting, it may be attached to the distal end 124 of the outer member 120 or fixed directly. The second end 174 of the spiral member 170 may be similarly attached or directly fixed to the sleeve 178 or the distal end 134 fixed to the distal end 134 of the inner member 130.
The sleeve 178 is a relatively short tube attached to the distal end 134 of the inner member adjacent to the distal end 154 of the balloon, for example by adhesive bonding, ultrasonic welding, tight fitting, melting, etc. You can. The sleeve 178 may have an outer diameter greater than the inner diameter of the collar 155 and / or the distal end 154 of the balloon 150, thereby providing a stop that limits the movement of the collar 155 and the distal end 154 with respect to the inner member 130. provide. When the sleeve 178 contacts the collar 155 and / or the distal end 154, the sleeve 178 communicates with the outlet 158 so that fluid still flows through the outlet 158, for example when introduced into the inside 156 of the balloon. Is virtually unobstructed. Alternatively, the sleeve 178, like the other sealing members described elsewhere herein, substantially converses the outlet 158 when the sleeve 178 engages the collar 155 and / or the distal end 154 of the balloon 150. It may have a shape that seals the surface. Optionally, during manufacture or assembly, the collar 155 is a sealing member when the collar and sleeve 178 are attached to the distal end 134 of the inner member, i.e., before attaching the collar 155 to the distal end 154 of the balloon. It may be positioned between the 138 and the sleeve 178. The distal end 154 of the balloon may then be mounted on the collar 155 when the balloon 154 is mounted to the distal end 124 of the outer member. If desired, the distal end 154 of the balloon may be attached to the collar 155 such that the proximal compartment of the collar 155 is located within the inner 156 of the balloon 150. In that case, the proximal compartment of the collar 155 facilitates the passage of fluid flowing out of the outlet 158 from the inside 156 of the balloon through the collar 155, i.e. the outlet 158 seals, as further described below. It may have one or more openings (not shown) when not sealed by member 138.
The inner member 130 relative to the outer member 120, for example, between a first or distal position, a second or intermediate position (shown in FIG. 7), and / or a third or proximal position (not shown). It may be movable in the axial direction, thereby allowing the device 110 to provide different functions of treating the lumen of the body. For example, in the first position, the inner member 130 may guide the seal member 138 distally so that the seal member 138 is spaced apart from the balloon outlet 158. Thus, the fluid introduced through the first lumen 126 of the outer member 120 will flow out of the outlet 158 through the inner 156 of the balloon and beyond, for example, the distal tip 35, as in the previous embodiment. It may flow into the lumen of the body.
If desired, the inner member 130 may be guided proximally to a second position, as shown in FIG. 7, and the seal member 138 engages the collar 155 and / or the distal end 154 of the balloon 150. And thereby effectively sealing the outlet 158 from the flow of fluid through it. Thus, any of the fluid introduced through the first lumen 126 can flow into the interior 156 of the balloon and expand the balloon 150. In this mode, the balloon 150 may be extended, for example, into an elongated, nearly cylindrical shape with a nearly uniform meridian major between the tapered ends. In the expanded state, the main part of the balloon 150 may have a length of about 20-80 mm and a diameter of about 3-12 mm. The balloon 150 widens or significantly covers the walls of the body's lumen to widen stenosis, obstruction, or other obstruction, as described below, for example, as in the methods shown in FIGS. 9E-9G. It may be used to exert pressure.
As an additional or alternative, after inflating the balloon 150 to widen the lumen of the body, a vacuum source may be coupled to the side port 164, which is folded contracted around the spiral member 170. Good. Alternatively, if the balloon 150 is not pre-inflated, it is not necessary to use vacuum to fold the balloon 150 because the balloon 150 is already fully folded or in a contracted state.
The inner member 130 may then be guided proximally to a third position, thereby guiding the ends of the helical member 170 towards each other. This causes the spiral member 170 to expand radially outward as it is compressed in the axial direction, thereby compressing the balloon 150 in the axial direction and causing the spiral member 170, for example, as shown in FIGS. 9C and 9D. Expand the balloon 150 in the radial direction in a spiral shape. Optionally, the inner member 130 and / or handle 150 has one or more stops (not shown) that limit the proximal movement of the inner member 130 when compressing and expanding the balloon 150 and spiral member 170. You can do it. For example, the stop allows the inner member 130 to be pulled until the length of the balloon is reduced to about 6-30 mm, thereby preventing excessive compression of the balloon 150 and / or the spiral member 170.
In one embodiment, the helical member 170 may have sufficient rigidity that the helical member 170 simply elastically contracts from a small contour towards the helical shape when compressed in the axial direction. Thus, the helical member 170 may be expanded without substantial elastic deformation so that the helical member 170 returns from its original shape to a smaller contour shape (and, if necessary, is repeatedly expanded and folded). .. Alternatively, the spiral member 170 provides a predetermined extended helix, for example, by providing axial tension on the ends 172, 174 of the spiral member 170 when the inner member 130 is in the first or second position. The shape may be urged, but may be limited to small contours. When the inner member 130 is guided towards the third position, the tension is released, where the helical member 170 may elastically expand towards the expanding helical shape.
In another alternative, the spiral member may be integrally formed with the balloon 150, or attached to the wall of the balloon (not shown), eg, between the proximal end 152 and the distal end 154, or the balloon 150. It may be directly attached to the balloon 150, such as being embedded or fixed within. For example, as shown in FIGS. 7B and 7D, one or more spiral wires or fibers 157'(eg, one in FIG. 7B and two in FIG. 7D) are molded into the wall of the balloon 150'. It may be embedded, embedded, or integrally formed. The fiber 157'may automatically urge the balloon 150' toward the extended spiral shape as the balloon 150'is compressed axially as the inner member 130 moves towards the third position. Alternatively, as shown in FIG. 7C, the fiber 157 "is molded and embedded in the wall of a balloon 150" having a core wire or member 159 "such as a radiation impermeable material, urged core wire, etc." It may be formed integrally. In a further alternative example, FIGS. 7E-7H show the balloon 150.<sub>e</sub>~150<sub>h</sub>Can be molded, embedded, or integrally formed on the wall of the balloon 150<sub>e</sub>~150<sub>h</sub>Alternative shapes and / or fibers that can spiral between the proximal and distal ends of the<sub>e</sub>~157<sub>h</sub>Shows the structure or other reinforcing features for. Fiber and / or reinforcement features are balloon 150', 150'or 150<sub>e</sub>~150<sub>h</sub>There may be one or more, for example, one and a half, two, three, four, or more turns between the proximal and distal ends of the. Further, any fiber and / or reinforcing feature contained in the balloon may be, for example, balloon 150', 150'or 150.<sub>e</sub>~150<sub>h</sub>May provide a cutting edge or element that can be at least partially embedded in the wall of the body lumen when it is inflated to widen the occlusion of the body lumen.
With reference to FIG. 7, with the balloon 150 in an extended spiral shape, the entire device 110, if necessary, the body, as described further below, eg, similar to the method shown in FIGS. 9A-9D. It may be guided along the lumen of the body to remove obstructive material, including removing, cleaning or detaching adherents from the walls of the lumen of the body. Thus, in this embodiment, a single balloon 150 is used, for example, for inflating using relatively high pressure and for both removing, cleaning or removing obstructive material from the lumen of the body. May be used for.
With reference to FIGS. 23A and 23B, device 110 is similar to device 110 in FIG. 7 except that device 110'includes an alternative embodiment of handle 760 on the proximal end 122' of outer member 120'. 'It is shown. In general, the handle 760 is carried by the outer housing 761 (shown in Figure 23A) and the inner carriage 765 (shown in Figure 23B) that is axially slidable within the housing 761 and coupled to the carriage 765. It has a rotary knob 762 and a hub 763 extending from the housing 761. The handle 760 (and other handles described below and elsewhere herein) is, for example, an actuator that opens and closes a valve on the device and / or expands and / or folds a helical member on the device. It will be appreciated that the device may be provided on any of the devices described herein.
The housing 761 is provided along, for example, a vertical seam (not shown) to provide a housing 761 that is secured together by one or more pieces, such as a mating connector, adhesive bonding, ultrasonic welding, melting, etc. It may have one or more mating halves or crumb shells (not shown) that can be connected together. The housing 761 may have slots, tracks or other features (not shown) that allow the carriage 765 to slide axially within the housing 761 without substantial lateral movement. The housing 761 and / or carriage 765 is guided by one or more collaborative features, eg, a first position (for injection from outlet 158') and an extended spiral shape (balloon 150'). Has a stop (not shown) in the housing 761 that limits the axial movement of the carriage 765 with respect to the housing 761 to limit the movement of the inner member 130'to and from the third position. Good.
Housing 761 may have a side port 764 with a Luer lock or other connector, for example to connect a fluid source to device 110'. The side port 764 may communicate with a lumen extending through the outer member 120'to carry fluid into the balloon 150', as in the previous embodiment.
The knob 762 encloses or extends radially from the housing 761 and within the carriage 765, for example, with a ridge or other feature to facilitate rotation or other operation of the knob 762 during use. It may have an inner stem 762b, which extends axially along the first passage 765a. The inner stem 762b and carriage 765 may have collaborative features, such as a spiral screw 762c that replaces the rotation of the knob 762 with axial movement of the carriage 765. Therefore, the knob 762 may be substantially fixed axially to the housing 761 and may be freely rotatable about the vertical axis of device 110'.
The proximal end 132'of the inner member 130'may pass freely through the inner stem 762b and may be secured to the carriage 765. For example, the proximal end 132'of the inner member is adjacent to and / or communicates with the first passage 765a, for example by adhesive bonding, ultrasonic welding, melting, tight fitting, fitting connector (not shown). It may be secured to the carriage 765 by fixing the proximal end 132'in the second passage 765b. Therefore, the axial movement of the inner member 130'may be linked to the movement of the carriage 765.
The hub 763 may have a hypotube or other tubular member 763a and a luer lock or other connector 763b secured to each other and / or to the outer housing 761. For example, the proximal end of tubular member 763a and / or connector 763b is attached to the proximal end of housing 761 by, for example, adhesive bonding, ultrasonic welding, melting, tight fitting, fitting connectors (not shown). May be done.
The tubular member 763a is slidably accepted into the second passage 765b so that the tubular member 763a and the connector 763b remain substantially immobile with respect to the housing 761 as the carriage 765 is guided axially. You can. One or more seals, such as the o-ring 766, may be provided in or around the second passage 765b, which allows fluid to leak out of the housing 761 through passages 765a, 765b. While providing a fluid-tight seal that prevents the tubular member 763a from sliding through it.
In use, the knob 762 may be rotated in the first direction, thereby translating the inner member 130'distant to the first position to open the outlet 158'. Therefore, the fluid carried through the outer member 120'flows out of the outlet 158' through the balloon 150', as described above. The knob 762 may be rotated in the opposite second direction, thereby causing the inner member 130'proximal until, for example, the sealing member 138' seals the outlet 158'to allow expansion of the balloon. It may be translated to a second position and / or, for example, further rotated to a third position to extend the balloon 150'in an extended spiral shape, as described above. Optionally, the knob 762 and / or housing 761 identifies the direction in which the knob 762 is rotated to achieve the desired position and / or, for example, the first, second and / or third positions. Each indicator (also not shown) is a visual, acoustic, or other indicator (figure) that indicates when a particular position has been achieved by arranging arrows (not shown) on the knob 762. (Not shown) may have. Also, device 110'may operate in the same manner as in the previous embodiment.
With reference to FIGS. 24A to 24C, from the outer housing 861 with side port 864 (shown in Figure 24A) and the inner carriage 865 (shown in Figure 24B) that can slide axially within the housing 861 and from housing 861. Another embodiment of the handle 860, which has an extending hub 863 and is generally similar to the handle 760, is shown. For example, the housing 861 is a slot, track or other feature that is connected to one or more pieces, eg, allows the axial carriage 865 to slide within the housing 861 without substantial lateral movement. It may have one or more sets of mating carriages or other features (not shown) that can have (not shown). The housing 861 and / or carriage 865 is guided, for example, in a first position (for injection from outlet 158'), a second position (for balloon expansion), and (balloon 150' in an extended spiral shape. (Not shown) In order to limit the movement of the inner member 130'between the third positions, it may have one or more features that limit the axial movement of the carriage 865 with respect to the housing 861.
The proximal end 132'of the inner member 130'is a passage 865a adjacent to the distal end of the carriage 865, for example by adhesive bonding, ultrasonic welding, melting, tight fitting, fitting connector (not shown). It may be substantially fixed to the carriage 865 by fixing the proximal end 132'into. Therefore, the axial movement of the inner member 130'may be linked to the movement of the carriage 865.
Hub 863 may have hypotubes or other tubular members 863a and luer locks or other connectors 863b that are secured to each other and / or to the outer housing 861. For example, the proximal end of tubular member 863a and / or connector 863b may be attached to the proximal end of housing 861 by, for example, bonding with adhesive, ultrasonic welding, melting, tight fitting, fitting connector (not shown). May be attached.
The tubular member 863a, eg, the carriage 865, allows the tubular member 863a and the connector 863b to remain immobile with respect to the housing 861 (and the proximal end 132'of the inner member) as the carriage 865 is guided axially. It may be slidably accepted into passage 865a adjacent to its proximal end. With the tubular member 863a and the proximal end 1323' of the inner member received in the passage 865a, the guide wire or other instrument loaded through the inner member 130' is free to pass through the passage 865a, the tubular member 863a. The connector 863b may exit (or be inserted through the connector 863b into the inner member 130'). One or more seals, such as the o-ring 866, prevent fluid from leaking out of the housing 861 through the passage 865a while allowing the tubular member 863 to slide through it. It may be provided in or around.
Instead of the swivel knob 762, the handle 860 has a push button 862 carried by the housing 861 and coupled to the carriage 865. For example, the housing 861 may have an elongated slot 861a and the pushbutton 862 may be axially slidable within the slot 861a. Optionally, as illustrated, slot 861a captures pushbutton 862, for example, to secure the carriage 865 and inner member 130'so that it can be released to one or more positions. You may have one or more pockets or detents 861b to get.
Optionally, the housing 861 may have one or more visual indicators, for example, to identify the position of the inner member 132'when the pushbutton 862 is received in a particular pocket 861b. For example, as shown in FIG. 24C, the housing 861 indicates that the pushbutton, in this embodiment, the inner member 130'is in each particular position when the lever 862 is aligned with the particular symbol 861c. May have a number or other symbol 861c arranged in each pocket (not shown) so that can be identified.
As best visible in Figure 24B, the pushbutton 862 may have a base 862a that is substantially fixed to the carriage 865 and a cap 862b that is laterally slidable relative to the base 862a. .. For example, the base 862a is integrally molded or formed with the carriage 865, and the cap 862b is attached to the base 862a so that it can be slid laterally, eg, substantially perpendicular to the vertical line of the handle 860. May be done. For example, the cap 862b may be urged so that the cap 862b automatically slides into the pocket 861b where the cap 862b is arranged, but the cap 862b slides axially into another pocket 861b. The urging force can be overcome to move the cap 862b out of each pocket 861b into slot 861a. For example, a spring or other urging mechanism (not shown) may be provided within the cap 862b or housing 861 that can push the cap 862b laterally from the base 862a.
Alternatively, the entire pushbutton 862 may be fixed to the carriage 865, eg, integrally molded or formed with each other, and the pushbutton 862 and the carriage 865 are swiveled around the vertical axis. The cap 862b is guided outward of one particular pocket 861b and axially guided along slot 861a, allowing it to be released or placed in another pocket 861b. In this alternative, a spring or other urging mechanism (not shown) urges the pushbutton 862 and carriage 865 into any pocket 861b where the cap 862b is arranged when the cap 862b is released. You may guide the cap 862b.
In an exemplary embodiment, the handle 860 has three pockets 861b, for example one corresponding to the first position of the inner member 130', one corresponding to the second position, and one corresponding to the third position. You can. Thus, to place the inner member 130'in any of the first, second, or third positions, the cap 862b may be guided outward from the pocket where the cap 862b is accepted, and the pushbutton 862 is a slot. It may be axially slid along the 861a and released or guided into the desired pocket 861b. Alternatively, the handle 860 may have only one or two pockets 861b, for example if the push button 862 is axially urged to one of the positions.
In use, the pushbutton 862 may be axially guided distally to the indicator "R" in FIG. 24C, eg, in the first direction and released or captured in the corresponding pocket, thereby exiting 158'. The inner member 130'is translated distally to the first position to open. Therefore, the fluid carried through the outer member 120'may flow out of the outlet 158' through the balloon 150', as described above. The push button 862 is guided outward of the pocket and axially, for example, proximally to the indicator "N", whereby the seal member 138'exits, for example, to allow expansion of the balloon. Translate the inner member 130'proximal to the second position until the 158'is sealed. In addition, if necessary, the push member 872 may be guided outside the "N" pocket and axially guided through slot 861a and released into the third pocket corresponding to the indicator "D". By, for example, as described above, the inner member 130'is translated into a third position to extend the balloon 150'in an extended spiral shape.
Referring to FIGS. 25A and 25B, an outer housing 961 with side port 964 (shown in FIG. 25A), a carriage in the housing 961 (not shown), and extending from the housing 961 are similar to the previous embodiment. Yet another embodiment of the handle 960 with the hub 963 is shown. The carriage may have a rack 965 (shown in FIG. 25B) with a plurality of teeth 965a spaced axially spaced along the rack 965.
As in the previous embodiment, the proximal end of the inner member 130'(not shown) is such that the axial movement of the inner member 130' is coupled to the carriage movement and, as a result, to the rack 965. It may be substantially fixed to the carriage (not shown).
The hub 963, as in the previous embodiment, has a hypotube or other tubular member (not shown) and a luer lock or other connector 963b that is secured to each other and / or to the outer housing 961. You can. The tubular member can slide into the carriage passage, eg, so that the connector 963b remains substantially immobile with respect to the housing 961 (and inner member 130') as the carriage is guided axially. May be accepted by.
In this embodiment, the actuator is a rotary wheel 962 rotatably mounted in the housing 961 as shown in FIG. 25A. The rotary wheel 962 includes an outer wheel 962a with a ridge or other feature that facilitates engagement with the rotary wheel 962 and / or rotation of the rotary wheel 962, and a pinion 962b extending into the housing 961. Has. As best visible in Figure 25B, the teeth on the pinion 962b are such that the rotation of the outer wheel 962a causes the rack 965 and, as a result, the inner member 130'to move axially relative to the housing 961 and the outer member 120'. May work with teeth 965a on rack 965. Optionally, the housing 961 has one or more visual indicators to identify the position of the inner member 132'when the wheel 962a rotates in one or more directions, as in the previous embodiment. You can.
In use, the rotary wheel 962 may rotate to a first position, eg, to translate the inner member 130'distant to a first position that opens the outlet 158'. When necessary, the rotary wheel 962, for example, as in the previous embodiment, inflates and / or expands the balloon 150'to allow the balloon 150' to be expanded into a spiral shape. / Or may be rotated in the opposite second direction to translate the inner member 130'proximal to the third position. One advantage of the rotating wheel 962 is that the ratio of the outer wheel 962a, the pinion 962b and the teeth 965 on the rack 965 is configured to provide the desired mechanical advantage and / or the precision of movement of the inner member 130'. To get.
Another embodiment of the handle 1060, which may be included in any of the devices shown herein, is shown in FIGS. 26A and 26B. As in the previous embodiment, the handle 1060 has a housing 1061 with a hub 1063 and a side port 1064. In this embodiment, the actuator is a push button that can be pushed down, for example, to guide the inner member 130'in the axial direction from a first position to a second position, similar to the embodiments described elsewhere herein. It is 1062. Generally, the push button 1062 is proximal when the links 1062a, 1062b defining the button 1062 are flattened when pushed inward, thereby anchoring the distal link 1062b axially with respect to the housing 1061. Guide link 1062a proximally.
For example, the first end of the distal link 1062b may be rotatably coupled to the housing 1061 and the second end may be rotatably coupled to the first end of the proximal link 1062. The second end of the proximal link 1062a may be axially slidable along the housing 861, for example in a slot or track (not shown). With the second end of the proximal link 1062a coupled to the inner member 130'by, for example, a cable or other linking device 1062c, when the push button 1062 is pushed inward, the proximal link 1062, for example (exit 158). From the first position (with the'opened) to the second position (allowing the balloon 158' to be inflated and / or expanded into an extended spiral shape) the inner member 130' Attract.
Optionally, a cover (not shown) may be placed on the push button 1062 to prevent the user from catching anything between the links 1062a, 1062b. As an addition or alternative, the push button 1062 may be provided on top of the housing 1061 so that the push button 1062 can be activated, eg, by the user with the thumb, or, for example, the push button 1062 by the user with the index finger. It may be provided on the bottom (not shown) of the housing 1061 so that it can be actuated. Optionally, the handle 1060, as in the previous embodiment, is different, for example, so that the push button 1062 is fixed so that it can be released at one or more positions before the links 1062a, 1062b are completely flat. The position may have one or more feature portions (not shown) such that the inner member 130'is successfully translated and fixed at, for example, the second and third positions.
With reference to FIG. 8, yet another embodiment of the device 210 for treating the lumen of the body is shown, wherein the device 210, as in the previous embodiment, has an outer tubular member 220 and an inner member 230. A valve for opening or closing the outlet of the balloon, although generally having an expandable balloon 250 and a spiral member 270 held by an inner member 220 and / or an outer member 230, unlike the embodiment of FIG. Does not have. The device 110 can operate in a first mode of expanding the occlusion in the body lumen and / or in a second mode of removing the obstructive substance in the body lumen, as further described below. Good.
As shown, the outer member 220 has a proximal end 222 and a distal end 224 and a first lumen 226 extending between the proximal end 222 and the distal end 224, the inner member 230. Has a proximal end 232 and a distal end 234 and a second lumen 236 extending between the proximal end 232 and the distal end 234. The inner member 230 is, for example, in the first inner of the outer member 220 so that, as in the previous embodiment, an annular space is defined between the outer and inner members 220, 230 through which one or more fluids flow. It has a size that allows it to slide and move within cavity 226.
A handle or hub 260 may be coupled or provided to the proximal end 222 of the outer member 220, the handle or hub 260 may be similar to the previous embodiment, eg, inside the outer member 220. A pull handle or other actuator 262 that moves the member 230, a side port 264 that connects one or more fluid sources to the device 210, and an o-ring or other seal 166 between the outer and inner members 220, 230. Have.
The balloon 250 is similar to the previous embodiment with a proximal end 252 coupled to the distal end 224 of the outer member, attached by, for example, adhesive bonding, tight fitting, ultrasonic welding, melting, etc. It has a distal end 254, which is coupled to the end 234. The balloon 250, like other embodiments described elsewhere herein, is substantially non-flexible in order to provide an inflexible balloon that expands to a predetermined size when inflated independently of pressure. The balloon 250 may be formed from an elastic material, or alternative, the balloon 250 may be formed from an elastic material.
Similar to the embodiment of FIG. 7, the spiral member 270 may be coupled between the outer and inner members 220, 230. Therefore, the helical member 270 may be movable from a relatively small contour, such as that shown in FIG. 8, to an extended helical shape as further described below with reference to FIGS. 9A-9D. As shown in FIG. 8, the first end 272 of the spiral member 270 may be attached or fixed directly to the distal end 224 of the outer member 220, and the second end 274 of the spiral member 270 may be a balloon. It may be attached or fixed to the distal end 234 of the inner member 230 adjacent to the distal end 252 of the.
In use, in the exemplary method shown in FIGS. 9A-9G, the device 210 expands the occlusion 94 within the lumen 90 of the body and / or to remove the obstruction substance 92, for example, as shown in FIG. 9A. Therefore, it may be used to treat lumen 90 of the body. As in previous embodiments, the target body lumen 90 may be a blood vessel such as an artery or vein, such as a large arteriovenous fistula, a tubular xenograft, or a composite tubular graft.
Optionally, the lumen of the body can be part of a system or kit having, for example, one or more introducer sheath cases, a guide catheter and / or a device 210 with a guide wire (not shown). May be accessed using additional equipment (not shown). For example, a guide catheter, microcatheter, introducer sheath case, or other tubular body (not shown) can be used to facilitate guiding the device 210 from the site of entry into the lumen of the target body. It may be placed in the lumen 90 of the body from the site of entry using conventional methods. In addition or as an alternative, guide wires (not shown) may be placed in the lumen 90 of the body from the site of entry, if desired.
First, referring to FIG. 9B, the device 210 may advance into the body lumen 90 by the inner member 230 in the first or distal position, eg, so that the balloon 250 is substantially folded. Optionally, a contrast agent or other fluid is introduced, for example, through the second lumen 236 of the inner member 230 (not shown, see FIG. 8) or in a separate lumen of the outer member 220 (not shown). ) May be transported into the lumen 90 of the body. A marker (not shown) on device 10 positions the balloon 250 relative to the substance 92 intended to be removed, eg, to position the balloon 250 beyond or adjacent to the substance 92. It may be easier to do.
Optionally, the device 210 may be introduced through a guide catheter or other tubular member (not shown) having a lumen communicating with the vacuum source. With the balloon 250 placed beyond the guide catheter, the vacuum source will remove the substance within the body's lumen 90, for example, when the substance 92 is removed or removed by the balloon 250, as described below. It may be initiated to aspirate.
With reference to FIG. 9C, the inner member 230 may be guided proximally to the outer member 220, thereby expanding the helical member 270 and, as a result, the balloon 250 towards an extended helical shape, as described above. Let me. As shown in FIG. 9D, the entire device 210 is pulled back to remove the substance 92, eg, scraping, cleaning or detaching any substance that may adhere to the walls of the lumen 90 of the body. For example, the device 210 may be pulled from the lumen of the body to remove the substance 92 into the lumen of the guide catheter where the substance 92 is aspirated from the patient's body. Alternatively, the substance 92 may be released in such a way that it can be naturally metabolized by the patient's body.
If desired, the inner member 230 may be returned to the first position to fold the balloon 250, and the device 210 may be moved to another position within the lumen 90 of the body. The inner member 230 may be guided between the first and second positions each time it is necessary to expand the balloon 250 to separate or remove sufficient material 92.
With reference to FIG. 9E, stenosis, obstruction or other obstruction 94 is identified within lumen 90 of the body with sufficient substance 92 removed. The device 210 is reintroduced into the body lumen 90 in the folded state until the balloon 250 is positioned adjacent to the occlusion 94, for example using fluorescence perspective or other additional imaging. May be done or may be repositioned. When properly positioned, the balloon 250 may be inflated to widen or treat the obstruction 94, as shown in FIG. 9F. Optionally, the balloon 250 may use the balloon 2500 to carry one or more diagnostic and / or therapeutic agents that can be delivered to and / or within the obstruction 94. After sufficient treatment, the balloon may be deflated and the device 10 may be removed from the lumen 90 of the body, as shown in FIG. 9G.
Optionally, any of the embodiments described herein may provide a variety of balloon structures. For example, with reference to FIG. 10A, further reference to device 250 in FIG. 8 shows an exemplary cross section of device 210 passing through balloon 250. FIG. 10A shows a spiral member 270 wrapped around an inner member 230 and surrounded by an extended balloon 250. Therefore, both the spiral member 270 and the inner member 230 are placed within the inner 256 of the balloon 250. One of the inconveniences of these balloon 250s is that it is difficult to predict which area of the balloon's wall will contact and scrape along the wall of the target body's lumen. It has to be relatively thick.
10B-10D show alternative embodiments of balloon or tubular structures that may be provided for any of the embodiments described herein. These structures may be provided for an inflatable balloon or for a tubular member that can be expanded into an expanding spiral shape without expansion. Illustrative embodiments of such devices are disclosed in US Pat. No. 4,762,130.
For example, as shown in FIG. 10B, a balloon or tubular member 250'having a first lumen 251'accepting the inner member 230 and a second lumen 253' receiving the helical member 270 therein is shown. When the tubular member 250'and the helical member 270 are axially compressed, the helical member 270 may extend radially outward away from the inner member 230, whereby the surface area 280'is the first lumen 251. Since it is the furthest from the', it guides the surface area 280'radially outward from the inner member 230. Thus, the structure of the tubular wall improves scraping and / or other removal of obstructive material, as the surface area 280'is likely to contact the wall of the body's lumen when the tubular member 250'is expanded. May be modified for For example, the feature may be integrally molded or formed, for example, on the wall of the tubular member 250'that spirals around the tubular member 250' adjacent to the second lumen 253'.
As shown in FIG. 10B, the surface area 280'makes it easier to scrape adherents from the target body lumen wall, for example by concentrating contact pressure with the body lumen wall. It may have multiple grooves to provide the resulting edge 282'. In addition, the tubular wall facing the surface area 280'may be relatively thin as this area of the wall is unlikely to contact the wall of the body lumen, which means the entire cross section of the tubular member 250'or Allows the contour to be reduced. As an alternative or in addition, if necessary, substances of different properties with relatively thin wall thicknesses somewhere on the surface area 280'or tubular member 250', for example harder elastomeric materials, may be used. ..
Referring to FIG. 10C, another embodiment of the tubular member 250 "with a ridge or protrusion 282" along a surface area 280 "that contacts the wall of the body's lumen when the tubular member 250" is expanded is shown. ing. In a further alternative example, as shown in FIG. 10D, a tubular member 250'''' with a first cavity 251''' with a swirl formed or formed within the tubular wall may be provided. The swirl may increase the perimeter of the tubular wall, and thus allow the wall to extend to a larger diameter dimension, but the surface area 280'' toward the wall of the lumen of the body to be treated. 'I will guide you further.
Referring to FIG. 11, as in the previous embodiment, it has an outer member 320, an inner member 330, and an expandable member 350 carried on the distal ends 324, 334 of the outer and inner members 320, 330. Another embodiment of device 310 is shown. Unlike the previous embodiment, the expandable member 350 does not have an interior coupled to a lumen extending through the outer member 320, i.e., the expandable member 350 is not inflatable. However, instead, if necessary, the device 310 extends through the outer member 320 and communicates with the inside of the expandable member 350 to selectively inflate or fold the expandable member 350. (Not shown) may have. In addition, if necessary, device 310 is one or more sealing members that are opened or closed to selectively inject fluid or to inflate the expandable member 350, as in the previous embodiment. Alternatively, it may have another valve (not shown).
The expandable member 350 is proximally coupled to the distal end 324 of the outer member by, for example, adhesive bonding, ultrasonic welding, melting, tightening, one or more bands or other connectors (not shown). It generally has an end 352 and a distal end 354 coupled to the distal end 334 of the medial member. Further, as in the previous embodiment, the device 310 is coupled between the distal ends 324, 334 of the outer and inner members and is, for example, inside or held by the expandable member 350. It has a spiral member (not shown) that extends spirally around the inner member 330.
For example, the spiral member may have a gap within the expandable member 350. Alternatively, the spiral member may be fixed or attached to the wall of the expandable member 350, eg, to the inner surface of the expandable member 350.
Unlike the previous embodiment, the spiral member has a first coil in the first region 350a of the expandable member 350 and a second region 350b having different characteristics in the second region 350b of the expandable member 350. Have. The first and second coils may be integrally formed together as, for example, a single wire, filament, etc. and coupled to each other, or may be formed as separate wires or filaments attached to each other. Each coil has a plurality of windings that spirally extend around the inner member 330, for example, between the proximal and distal ends 352 of the expandable member 350.
The coil may be provided with a relatively small contour around the inner member 330, for example, when the inner member 330 is extended distal to the outer member 320 to a first position. As in the previous embodiment, the coil may be axially compressed when the inner member 330 is retracted proximally from the first position to the second position, thereby causing the coil to be radially outward. Extend and extend the expandable member 350 radially outward to an expansion spiral shape.
The coils may have different mechanical properties from each other, thereby expanding the first and second regions 350a, 350b of the expandable member 350 to different sizes and / or shapes in the expansion helix. For example, as shown in FIG. 11, the first region 350a may be extended to a diameter smaller than that of the second region 350b. This may be achieved by forming the first coil from a material that is thinner, narrower or more flexible than the second coil. In addition or as an alternative, the coil is guided so that the coil can be constrained to a small contour when the inner member 330 is in the distal or first position, and the inner member 330 is guided proximally towards the second position. At that time, the coil may be urged to a different diameter so that it can elastically expand radially outward to the diameter set for the coil material.
In addition or as an alternative, the coil may be continuously expandable, eg, such that the first region 350a of the expandable member 350 can expand to an expansion spiral shape prior to the second region 350b. For example, the first coil of the first region 350a forms the first coil from a material that is thinner, narrower, and / or more flexible than the second coil, for example, thereby forming the first coil in the second region 350b. It may have less resistance to expansion than the second coil of. For example, the first coil may have a bare wire spirally wound around the inner member 330, while the second coil is identically wound around a compartment such as a tube, sleeve, etc., which can increase resistance to expansion. Or may have different wires. Therefore, when the inner member 330 is guided from the first position to the second position, the compressive force may act on the first coil first, thereby expanding the second coil and expanding the expandable member 350. The first region 350a of the first coil and the expandable member 350 is expanded until a predetermined threshold for expanding the second region 350b is achieved.
In another alternative, a sleeve (not shown) attached to the inner member 330 first surrounds the second coil in position 1 so that only the first coil expands freely when it is first compressed. It's fine. When the inner member 330 is guided towards the second position, the second coil may be exposed from the sleeve and then expands radially outward in an expanding spiral.
With reference to FIGS. 12 and 13, an exemplary method for treating a lumen of the body, such as a large arteriovenous dialysis implant 190, is shown using the device 310 of FIG. As shown, the implant 190 is attached to a first or venous anastomosis 192 attached to the patient's body, eg, vein 193 in the patient's arm, and a second artery 195 adjacent to vein 193. Or have an arterial anastomosis 194. As shown, the implant 190 has an obstructive substance 92, such as a thrombus or platelet, at a plurality of positions within the implant 190 contained within each anastomosis 192, 194.
First, the introducer or guide sheath case 380 is percutaneously through the patient's skin, eg, to the central region of the implant 190, using a method similar to that described elsewhere herein. May be placed within the implant 190. The pod case 380 is for stabilizing the pod case 380 with respect to a distal end 382 having a size and / or shape introduced into the implant 190 and, for example, the implant 190, and / or the implant 190. With a balloon 382 on the distal end 384 that substantially engages the wall of the implant 190 to substantially seal the implant 190 from the flow of fluid between the ends 192, 194. Good. The sheath case 380 also has a reservoir 386 that communicates with a lumen that extends to the opening of the distal end 382 (not shown) and a vacuum source that evacuates to aspirate material from within the implant 190 during the procedure. You may have a 388, such as a syringe.
The device 310 may be initially introduced into the implant 190 through the sheath case 380 along with the expandable member 350 in the contracted state. As shown in FIG. 12, the device 310 may advance until the expandable member 350 is placed distally beyond the obstruction material 92 within the venous side of the implant 190, where the inner member 330 (shown). Can be guided proximally to extend the expandable member 350 to an extended spiral shape. As shown, both coils are expanded so that, for example, the second region 350b can substantially engage or contact the wall of the implant 190 with the first and second expandable members 350. Extend both areas 350a and 350b.
The device 310 may then be pulled back to scrape or detach the adhering material 92 from the wall of the implant 190 and pull the material 92 towards the pod case 380. A vacuum source 388 may be initiated, if not yet, to aspirate material 92 through the sheath case 380 into the reservoir 386. If necessary, the inner member 330 may be advanced to fold the expandable member 350 towards the contracted state and, for example, expand the expandable member 350 to scrape or remove material 92. It may be further advanced into the implant 190 to repeat the process of making it.
Optionally, the pod case 380 may be repositioned within the implant 190 towards the arterial anastomosis 194, and device 310, for example, to remove material 92 within the arterial side of the implant 190. , Reintroduced with the contractible expandable member 350. Referring to FIG. 13, although the substance was removed from the graft 190, an additional obstructive substance 92 remains in the arterial anastomosis 194. Since the anastomosis 194 communicates with the artery 195, care must be taken to ensure that no substance is released into the artery 195, the substance flows into the underlying tissue and into the tissue downstream of the artery 195. Can cause ischemia or other damage.
The device 310 may be advanced until the distal end 334 of the medial member 330 passes through the substance 92 within the arterial anastomosis 194 with the contracting expandable member 350. At this point, the inner member 330 may be guided proximally sufficiently to extend the first region 350a of the expandable member 350 without substantially expanding the second region 350b. The device 310 may then be pulled back to pull the expandable member 350 back towards the sheath case 380, and some substance 92 removed from the anastomosis 194 may be aspirated to the outside of the implant 190. Thus, the smaller first region 350b allows greater attention to be used to remove material from the vulnerable region, while the second region 350b is within a relatively large body lumen or It may be expanded when it is necessary to apply greater force and / or remove larger amounts of material.
Referring to FIG. 14, an alternative embodiment of device 310 shown in FIG. 11 is shown. The device 310'in FIG. 14 is substantially identical to the device 310 and, as in the previous embodiment, for example, the outer member 320', the inner member 330', the expandable member 350', and the expandable member 350'. It has a first coil and a second coil that define a spiral member inside. Unlike the previous embodiment, the device 310'has an inflatable balloon 359', such as a substantially inflexible, high pressure balloon, on the distal end 324' of the outer member. In addition, device 310'has a handle 360' with side ports 364' to which expansion medium sources and / or vacuum sources 368'can be connected.
The device 310'may be used in the same manner as the device 310 shown in FIG. 11, using, for example, the methods of FIGS. 12 and 13. In addition, the inflatable balloon 359'may be positioned, for example, within the implant 190 of FIGS. 12 and 13, or within a stenosis, obstruction, or other occlusion within the lumen of another body. The balloon 359'may be inflated or inflated to widen the lumen of the body, similar to the embodiments described above. Optionally, a balloon or prosthesis (not shown) allows the prosthesis to be injected into the body lumen, eg, after using the balloon 350'to remove obstructive material from the body lumen. May be carried by 359'. Alternatively, the stent or other prosthesis may be carried on balloon 150 or 250 of device 110 or 210 shown in FIG. 7 or 8, for example, using any of the other embodiments described herein. It may be exposed or transported.
Alternatively, as shown in FIG. 14A, a device 310 "much similar to the device 310' in FIG. 14 may be provided. Unlike the device 310', the device 310" is at least partially the outer member 320 ". It may have an outer sheath case 380 that surrounds it. For example, as shown, the outer sheath case 380 "is located at the proximal end 382" that is attached to the handle or placed around the proximal end 322 "of the outer member 320" and, for example, proximal to the balloon 359 ". It may have a distal end 384 ", which extends distally to a position adjacent to the distal end 324" of the outer member 320 ". The outer sheath case 380 "may have a larger diameter or other cross section than the outer member 322" so that the annular lumen 386 "is provided between the outer sheath case 380" and the outer member 320 ". The lumen 386 "may communicate with a side port 365a" on a handle 360 "which may have a luer attachment or other connector. Thus, a syringe or vacuum source (not shown, similar to syringe 368 ") may be coupled to side port 365a" to aspirate material through lumen 386 "and adjacent to balloon 359". May be used. In addition or as an alternative, a cell lysing agent source and / or one or more other drug sources (not shown) may be attached to side port 365a ", and the drug replaces or is associated with aspiration. It may be transported into the lumen of the body through the annular lumen 386 .
In addition, device 310 "has an annular balloon or other expandable member 388" on the distal end 384 "of the outer sheath case 380". The outer sheath case 380 "has an inflatable lumen (not shown) that extends proximally to the proximal end 382" along the wall of the outer sheath case 380 "and communicates with another side port 365b". The side port 365b'has a luer attachment or other connector, as well as the side port 365a' to which the syringe or other inflatable medium source (not shown, such as the syringe 368') is attached. You can do it.
In use, the outer sheath case 380 "may be provided around the outer member 320" when the device 310 "is introduced into the lumen of the body, eg, as in other embodiments herein. Optionally, the distal end 384 "of the outer sheath case 380" is constrained to the outer sheath case 380 "to prevent proximal movement of the distal end 384" as the device 310 "advancees. May be good or combined. In addition or as an alternative, the annular balloon 388 "has a folding structure that frictionally and / or engages with the outer member 320" to prevent movement of the distal end 384 "of the outer sheath case 380". Good.
When the device 310 "is positioned within the lumen of the body to be treated (not shown), for example by the balloon 350" and / or the balloon 359 ", the annular balloon 388" is, for example, the surrounding wall of the lumen of the body. May be extended to engage with and / or open the distal end 384 "of the outer sheath case 380". The annular balloon 350 "is formed, for example, from an elastic and / or non-elastic material that allows the annular balloon 350" to extend radially and substantially engage the surrounding wall to provide a seal. Often, the seal may stop almost any flow through the body's lumen, or may simply prevent the substantial movement of released material within the body's lumen. At any time, the vacuum is inside the annulus of the outer pod case 380 "to suck or remove, for example, the material separated through the lumen 386" from the wall of the lumen of the body (not shown). It may act on lumen 386 .
Optionally, the outer sheath case 380 "is outer if, for example, the device 310" moves axially and / or radially while the annular balloon 380 "engages with the wall of the body's lumen. The sheath case 380 "may be formed from substantially flexible material to allow axial compression and / or expansion. Thus, material detached from the wall of the body lumen is guided towards the annular lumen 386 "using, for example, a balloon 350" or 359 "and through the body lumen through the annular lumen 386". May be sucked.
Alternatively, if the outer sheath case 380 "has a substantially constant length, the annular balloon 380" will be a balloon 380 along the wall of the body's lumen when the device 310 "is guided axially. Lubricating material that maintains a seal by the wall to reduce the risk of released material in the body's lumen escaping or moving to other locations in the patient's body while allowing the "slide" May have. In this alternative, the suction vacuum may be sufficient to attract the released material from the body lumen without pushing the material towards the annular lumen with either the balloon 350 ", 359".
In another alternative, the body, although at least the distal end 384 "of the outer sheath case 380" can be provided in a folded structure around the outer member 320 "when the outer sheath case 380" is introduced, for example, in device 310 ". It may be radially expandable so that it can be expanded to open the annular lumen 386 "to allow material to be aspirated from the lumen through the annular lumen 386". In this alternative, the annular balloon 380 may be omitted. Outer sheathed cases and / or annular balloons are described herein to facilitate suction of material and / or reduce the risk of movement of material released into the lumen of the body during the procedure. It will be understood that it may be provided in other embodiments of the book.
Reference to FIGS. 15A and 15B shows an exemplary embodiment of a coil that may be included in any of the devices described herein, having a spiral member that expands a balloon or other expandable member in an extended spiral shape. Has been done. For example, FIG. 15A shows a coil 370 with a nearly smooth and uniform winding 372 that can be incorporated like any of the helical members of the devices described above. Alternatively, as shown in FIG. 15B, when the coil 370'is contained within a balloon or expandable member (not shown), such as that described elsewhere herein, the wall of the body's lumen. A coil 370'with a plurality of rotations 372' with alternating top points 374'and bottom points 376' that can increase contact force with the is provided. The top point 374'and the bottom point 376' ensure that, for example, at least some top points 374' contact and / or scrape almost all around the wall of the target body's lumen. In order to do so, they may be staggered between adjacent windings.
With reference to FIG. 16, yet another embodiment of the device 410 is shown, for example, a first mode in which the device 410 removes a substance in, for example, a body lumen and widens an obstruction in the body lumen. It has multiple expandable devices on a single shaft so that it can operate in multiple modes of two modes.
In general, device 410 includes an outer member 420, an inner member 430, a handle 460, and a first balloon or other expandable member 450 held by the outer and inner members 420, 430, as in the previous embodiment. ,have. The outer member 420 has a proximal end 422 and a distal end 424 and a first lumen 426 extending between the proximal end 422 and the distal end 424, and the inner member 430 has a proximal end. It has a 432 and a distal end 434 and a second lumen 436 extending between the proximal end 432 and the distal end 434.
The first balloon 450 has a proximal end 452 coupled to the distal end 424 of the outer member and a distal end coupled to the distal end 434 of the inner member, and the first inner. It has an interior that communicates with cavity 426. The first balloon 450 is predetermined, for example, depending on the volume of the expansion medium carried within the first balloon 450 and / or the position of the inner member 430 with respect to the outer member 420. It may be formed from an elastic material so that it can be extended to a range of diameters and / or shapes.
Further, the second balloon 459 may be provided, for example, proximal to the first balloon 450 and on the outer member 420. The second balloon 459 may be formed from a substantially inelastic material, for example, to provide an inflexible high pressure inflatable balloon, similar to other embodiments described elsewhere herein. The outer member 420 has a third inflatable lumen 465 that communicates with the interior of the second balloon 459.
As shown, the handle 460 has a first side port 464a that communicates with the first lumen 426 to carry the inflatable medium into the first balloon 450 and to carry the inflatable medium into the second balloon 459. It has a second side port 464b, which communicates with a third dilated cavity 465. Further, the handle 460 seals the first lumen 426 with a pull handle or other actuator 462 for guiding the inner member 430 to one or more axial positions relative to the outer member 420, as in the previous embodiment. May have one or more seals for, eg, an o-ring 466.
Referring to FIGS. 17A-17D, different modes of device 410 with inner member 430 at each position are shown. First, as shown in FIG. 17A, the inner member 430 is in the first or distal position along with the contracted first and second balloons 450, 459. In this structure, the device 410 may be introduced into the patient's body, into the lumen of the target body to be treated, as in the previous embodiment.
Referring to FIG. 17B, the first balloon 450 is inflated in an expanded state with an inner member remaining in the first position. Thus, the first balloon 450 may be inflated to a diameter of one or more, for example, to engage or contact the wall of the lumen of the body to be treated. The device 410 may then be retracted or axially guided along the wall to scrape the first balloon 450, for example to remove thrombi or other adherents from the wall. Optionally, as shown in FIG. 17C, when greater pressure is required, or when a larger balloon is required due to the size of the body's lumen, the pull handle 462 is relative to the outer member 420. It may be guided proximally to pull the inner member 430 proximally, thereby compressing the first balloon 450 axially and expanding it radially.
Finally, as in the previous embodiment, the first balloon 450 may be folded into a contracted state if it is necessary to widen the stenosis, obstruction or other obstruction, as shown in FIG. 17D. 2 The balloon 459 may be positioned adjacent to the occlusion and inflated to expand and widen the occlusion. Thus, device 410 may be used for different procedures, such as embolectomy and / or angioplasty, without the need to remove device 410, as in previous embodiments. The device 410 may follow on a guide wire or other rail that is received through the second lumen 436 of the inner member 430, which causes the device 410 to be placed in various positions within the body lumen during the procedure. It can be easy to guide.
With reference to FIGS. 18A-18C, similar to the previous embodiment, the outer tubular member 620, the inner member 630, and the expandable balloon 650 held by the inner and / or outer members 620, 630. Another embodiment of the device 610 that treats the lumen of the body is shown. Further, as shown in FIGS. 19A-19C, the device 610 is on the proximal end 622 of the outer member 620, eg, to operate the outer member 620 and / or the entire device 610, much like the previous embodiment. It may have a handle or hub 660 coupled to or provided with. Also, as in the previous embodiment, the device 610 has, for example, a first mode (FIGS. 18A, 19A) that widens the occlusion in the lumen of the body, fluid in the lumen of the body, as further described below. It may be operational in multiple modes, such as a second mode of injecting (FIGS. 18B, 19B) and / or a third mode of removing obstructive material in the lumen of the body.
As shown, the outer member 620, which may be configured as in the previous embodiment, has a proximal end 622, a distal end 624 sized for introduction into the lumen of the body, and a proximal end. It has a first lumen 626, which extends along the central longitudinal line 627 between the 622 and the distal end 624. The inner member 630 is also sized to slidably accept a proximal end 632, a distal end 634, and optionally a guide wire or other rail (not shown) passing through it. It has a second lumen 636, which extends between 632 and the distal end 634. The inner member 630 is similar to the previous embodiment, for example, in the first inner part of the outer member 620 so that an annular space is defined between the outer member 620 and the inner member 630 through which one or more fluids pass. It has a size that can be slidably accepted in cavity 626. Also, as in the previous embodiment, one or more sealing members, such as the conical head 638, may be provided on the distal end 634 of the inner member 630.
As best visible in FIG. 18A, the balloon 650 has a proximal end 652 coupled to the distal end 624 of the outer member, a distal end 654 defining the outlet 658, and a first lumen 626 and an outlet 658. It has an internal 656 that communicates with it. The distal end 634 of the inner member 630 provides, for example, the distal end 654 of the balloon 650 such that the outlet 658 defines an annular passage between the distal end 654 of the balloon 650 and the distal end 634 of the inner member 630. You may extend through. As best visible in FIG. 18B, the distal end 654 of the balloon 650 is spring-loaded, which is attached or secured within the distal end 654, for example by adhesive bonding, tight fitting, ultrasonic welding, melting, etc. For example, it has a collar or sleeve 655. The spring retainer 655 does not substantially interfere with the fluid flowing through the outlet 658, for example when the conical head 638 is guided away from the outlet 658, as further described elsewhere herein. As such, they may be spaced proximal to the exit 658.
Optionally, the distal end 654 of the balloon 650 may have a coating or other liner 657, eg, adjacent to the spring retainer 655. For example, the liner 657 may contact the conical head 638 at the distal end 654 of the balloon 650, for example to reduce friction and / or adhesive between the balloon 650 and the conical head 638, as further described below. It may have a lubricious and / or low surface energy material such as PTFE applied to the inner part of the. Alternatively, the distal end 654 may be configured similar to other embodiments herein, such as the embodiments shown and described in FIGS. 31A-32B.
The balloon 650 may be formed using materials and methods similar to any of the other embodiments described herein, eg, inflexible to expand to a predetermined size when inflated independently of pressure. It may be formed from a substantially inelastic material to provide a flexible balloon. The conical head 638 is movable relative to the balloon 650 as the inner member 630 moves, eg, to provide a valve for selectively opening and closing the outlet 658 of the balloon 650. As such, it may be carried over the distal end 634 of the inner member. The liner 657 is provided, for example, with the device 610 in the first position shown in FIG. At some point, the balloon 650 may be slidably contacted. For example, if device 610 is positioned in the first position after manufacturing and / or assembly, the liner 657 and conical head 638 may, for example, during uncertain time during packaging, transportation, and / or storage before use. May remain in contact with each other. The liner 657 can reduce the risk of adhesion between the balloon 638 and the conical head 638, which can occur, for example, when they are formed from similar materials and / or exposed at elevated temperatures.
As best visible in FIG. 18A, device 610 may have a spiral member or coil 670 coupled between the outer and inner members 620, 630 within the balloon's inner 656. The helical member 670 may be movable from a relatively small contour, such as that shown in FIG. 18A, to an extended helical shape as shown in FIG. 18C and further described below. The spiral member 670 may be a wire, tube, or other filament having a first end 672 coupled to the distal end 624 of the outer member 620 and a second end 674 coupled to the inner member 630. .. For example, as in other embodiments herein, the spiral member 670 may be formed from a core wire having a tube or sleeve formed or attached around a wire (not shown). Alternatively, the helical member 670 may be formed, for example, from a plurality of wires woven or formed together in a single filament. Between the first end 672 and the second end 674, the spiral member 670 may spirally wrap around the inner member 630 at least once, as in other embodiments herein.
As shown, the first end 672 of the spiral member 670 is, for example, bonded by adhesive, ultrasonically welded, soldered, tightened (eg, wrapping the first end 672 around the distal end 624 at least once), External by one or more of inserting into the first end 672 into an annular groove, hole, or pocket within the distal end 624, melting, providing a sleeve (not shown) around the distal end 624, etc. It may be attached to the distal end 624 of the member 620 or fixed directly. Alternatively, the first end 672 of the spiral member 670 may extend proximally through or along the outer member 622, or is described further below, eg, as shown in FIGS. 22A-22D. As such, it may be coupled to an actuator cable that extends along the outer member 622.
Unlike the previous embodiment, the second end 674 of the spiral member 670 may be indirectly coupled to the inner member 630, for example via a spring element 690, as best visible in FIG. 18B. The spring element 690 includes, for example, an intermediate portion secured to the inner member 630 by a first collar or mounting element 692 and a proximal portion 694 coupled to a second end 674 of the spiral member 670 by a second collar or mounting element 695. May have one or more springs or other urging devices having a distal portion 696 extending distally from the first mounting element 692. Optionally, a membrane, pod case, or other structure (not shown) is provided, for example, on the proximal portion 694 and / or the distal portion 696, around at least part of the spring element 690. , The balloon 650 or other features of the device 610 can be prevented from being trapped, for example, in the winding of the spring element 690.
As best visible in FIG. 18B, the first collar 692 may be attached to the inner member 630 by, for example, adhesive bonding, melting, tight fitting, one or more connectors (not shown), etc. It may be fixed. The distal end 697 and the second collar 695 of the spring element 690 float freely around the inner member 630, eg, to provide the device 610 with the desired urging force and / or compliance, as further described below. You can. Alternatively, the distal end 697 of the spring element 690 may be attached or secured to the spring retainer 655 or to the distal end 654 of the balloon 650, if desired.
The first collar 692 may be located approximately midpoint on the spring element 690, or may be located closer to one end than to the other end. For example, as shown in FIG. 18B, the first collar 692 may be attached to the spring element 690 closer to the second collar 695 than to the distal end 697. Thus, in this embodiment, the distal portion 696 of the spring element 690 also has more windings in the proximal portion 694 cage, but less or more windings, if desired, eg, default. It may be provided on either the proximal portion 694 or the distal portion 696 to provide spring properties.
In one embodiment, the spring element 690 may be a single spring with a nearly uniform spring constant and / or other mechanical properties along its length, or the properties are, for example, the proximal portion 694 and May vary between distal portions 696. In an alternative embodiment, the proximal portion 694 and the distal portion 696 may be separate springs that are independently attached to the first collar 692, each with a device 610 as further described below. It has the desired properties for their respective purposes of springing and / or providing compliance to device 610. The spring element 690 may be formed from one or more materials such as a metal such as stainless steel, a thermoplastic resin, a thermosetting resin, glass, or a composite material.
As best visible in FIG. 18B, the distal portion 696 of the spring element 690 contacts the spring retainer 655, eg, to urge the inner member 630 axially relative to the distal end 654 of the balloon. It may be terminated at end 697. Optionally, the distal end 697 may have a planar ring that defines a plane approximately perpendicular to the vertical line 627, if desired, to provide an improved addition to, for example, the spring retainer 655. .. The distal portion 696 of the spring element 690, for example, within the distal end 654 of the balloon 650, where the distal portion 696 is restricted by contact between the distal end 697 and the spring retainer 655, as further described below. It may have a diameter smaller than the distal end 654 of the balloon 650 and a diameter larger than the inner diameter of the spring retainer 655 so that it can move freely.
The first collar 692 may be proximally offset from the conical head 638 by a predetermined distance, and / or the distal portion 696 of the spring element 690 has a predetermined length to provide the desired bias. You can do it. For example, these distances and / or spring constants of the distal portion 696 are conical from the balloon 650 to open the outlet 658, eg, to substantially seal the outlet 658, as further described below. The spring element 690 appears to urge the conical head 638 against the distal end 654 of the balloon 650 to allow the inner member 630 to be distally guided to move the head 638 away. It may be there.
As shown in FIGS. 18A and 18B, the second end 674 of the spiral member 670 and the proximal end 694 of the spring element 690 may be, for example, glued, melted, tightened, one or more connectors (not shown), etc. Attached to the second collar 695. The second collar 695 is free to move axially with respect to the inner member 630, for example, to provide compliance to the helical member 670, as described further below, with virtually no lateral movement. You can.
Optionally, the device 610 positions the device 610 in use, eg, on the distal end 634 of the inner member 630, the balloon 650, and / or the helical member 670, as in other embodiments herein. And / or may have one or more markers (not shown) to facilitate advancement.
With reference to FIGS. 19A-19C, the handle 660 is coupled onto the proximal end 622 of the outer member 620, eg, to operate the outer member 620 and / or the entire device 610, as in the previous embodiment. Well or may be provided. The handle 660 may generally have a housing 661 attached to the outer member 620 and may act on one or more ports 664 and / or features of the device 610 to access the lumen of the device 610. May have 662.
For example, the handle 660 may have a first side port 664a communicating with an annular first lumen 626 of the outer member 620, eg through the first lumen 626 and into the interior 656 of the balloon 650 and / or. Coupling one or more fluid sources or vacuum sources, such as syringes or other sources (not shown), that carry fluid through outlet 658 (depending on the position of inner member 630) to device 610, eg luer lock attachments. It may have a connector such as. Further, the handle 660 may have a second port 664b communicating with a second lumen 636 of the inner member 630. The second port 664b may be adapted to accept guide wires or other instruments (not shown) through the second port 664b and prevent substantial fluid flow from the second lumen 636 to the proximal. It may have one or more seals, such as a hemostatic seal (not shown), which may be suitable for maintaining a substantially fluid airtight seal for use.
Further, the handle 660, as further described below and / or, as in other embodiments herein, for example to open and / or close the outlet 658 (see FIGS. 18A, 18B) and /. Alternatively, it may have a slider, thumb control, pushbutton, or other actuator 662 coupled to the inner member 630 to move the inner member 630 to expand and fold the spiral member 670. Optionally, the handle 660 can guide the inner member 630 as it moves axially with respect to the outer member 630 and the handle 660, eg, as in other embodiments herein. One or more seals, bushings, etc. (not shown) may be provided between the inner members 630.
20A-20C show alternative embodiments of the handle 660'which may be similar to the handle 660 shown in FIGS. 19A-19C, eg, a side port 664' and a push button, thumb inside it. It comprises a housing 661'with a slot 663'to which the control, or other actuator 662', moves. Unlike the handle 660, the housing 661'may have a clip or other receptacle 668' that engages with a guide wire or other instrument 699 received on the side port 664b'. For example, as best visible in FIG. 20C, a recess 688a'is provided on the bottom of housing 661' to which one or more opposing flexible members, rubber moldings or other structures 668b' are attached. May be done. The guide wire 699 is shown to be pushed into the recess 668a'between and / or below the structure 668b' to detachably capture the guide wire 699 in the recess 668a'. Alternatively, the clip 668'may have other opposing elements such as ridges, cleats, etc. (not shown) mounted or attached to the housing 661'. Although the clip 668'is shown on the bottom of the housing 661', the clip 668'is in a position where interference is minimized, for example by holding and / or activating the handle 660'. It will be appreciated that it may be provided on other surfaces or locations.
In use, the guide wire 699 or other instrument may be inserted so that the distal end 699a of the guide wire 699 extends proximally from the second port 664b', eg into the second port 664b' or of the inner member 630. It may be introduced through port 2 664b'by loading into the distal end 634 (not shown). For example, by pushing the proximal end 699a into the recess 668a'through the structure 668b', the exposed portion of the guide wire 699 may be folded back and the proximal end 699a trapped in the clip 668'. Friction of structure 668b'may hold the proximal end 699a releasably within the recess 668a' if the proximal end 699a needs to be moved or manipulated, and the guide wire 699 may hold structure 668b'. May be pulled away from the housing 661'to open and remove the proximal end 699a from the clip 668'. Therefore, clip 668'is useful for handling long guide wires or other instruments, otherwise it may fall off the treatment table or endanger the maintenance of a sterile field in which the treatment is performed. ..
28A and 28B show another exemplary embodiment of a handle 660'''' that is similar to that described above, eg, a second port 664'''and in a slot or track 663'''. It has a housing 661'''with a push button, thumb control, or other actuator 662''', which moves in or with respect to a slot or track 663''''. As shown in FIG. 28A, the housing 661'''' is bonded along the seam between them, eg, with an adhesive, to define a gripping surface for the slot 663'''and the handle 660'''. It may have a fitted clamshell half portion that can be attached together by ultrasonic welding, melting, fitting connectors, etc.
FIG. 28B shows an exemplary configuration of the internal components of handle 660''' after the housing 661''' shown in FIG. 28A has been removed for clarity. As shown, the handle 660'''' is a stationary component coupled to the outer member 620 and / or housing 661'''', such as a manifold 680'''', a stress relaxation transition 682'''', and a proximity. Position hypotubes or other tubular bodies 690a'''' and axially movable components within the inner member 630 and housing 661'''' such as carriage 684''' and distal hypotubes or other tubulars. It has a body of 690b'''.
For example, the manifold 680'''and the transition 682''' may be attached or substantially fixed to the housing 661''', and the proximal end 622 of the outer member 620 may be these. The components of may be accepted and / or attached to the transition 682'''and / or manifold 680''' such that they remain substantially immobile with respect to the handle 660'''. Manifold 680'''' has an inner chamber or passage 681'''' communicating with the first lumen 626 of the outer member 620. Luer mounting components or other connectors are mounted on the manifold 680'''to provide first side port 664a''' which communicates with chamber 681''' and consequently with first lumen 626. Good.
The proximal tubular body 690a'''', like other embodiments herein, has a housing 661'with a proximal end extending from the housing 661''' to provide a first side port 664b'''. A lure that may or may be substantially fixed to the'''and provides a second side port 664b''', eg, to accept a guide wire or other device (not shown). Has mounting parts. The distal end of the proximal tubular body 690a'''' is within the carriage 684''' so that the carriage 684''' can slide at least partially axially beyond the proximal tubular body 690a''''. May be accepted by. As shown, the carriage 684'''is to provide a substantially fluid-tight seal between the proximal tubular body 690a''' and the carriage 684''' while the carriage 684''' is moving. , For example, may have an o-ring or other seal 686a''' that is accepted within the fixture or pedestal.
The carriage 684'''may be supported within the housing 661''' so that it is free to move axially with minimal lateral movement between the proximal and distal positions. Actuator 662''' may be attached to carriage 684'''' such that actuator 662'''' extends through slot 663'''' in housing 661'''', as in the previous embodiment. Or they may be combined. The distal tubular body 690b'''' is adapted to attach the distal tubular body 690b'''' to the inner member 630 with a proximal end that may be accepted and / or fixed within the carriage 684'''. It may have a distal end extending through the manifold 680'''and / or transition 682'''. The manifold 680'''fits the axial movement of the distal tubular body 690bb''' while providing a substantially fluid airtight seal between the distal tubular body 690b'''' and the manifold 680''''. In order to do so, for example, there may be an o-ring or other seal 686b''' that is accepted within the fixture or pedestal. Therefore, the fluid introduced into the chamber 681 '' of the manifold 680 via the first side port 664a '' may flow into the cavity 626 of the outer member 620 with almost no leakage.
As in the previous embodiment, the actuator 662'''' may be axially guided between two or more positions, thereby sliding the carriage 684'''' axially within the housing 661''''. It is moved, and as a result, guides the distal tubular body 690b'''and the inner member 630 to move axially with respect to the outer member 620 and the handle 660'''.
With reference to FIGS. 19A-19C, the housing 661 may have an elongated slot 663, and the actuator 662 slides approximately axially within slot 663 to guide the device 610 between one or more modes of operation. It may be movable. For example, slot 663 may have three distinguishable axial regions 663a, 663b, 663c connected by diagonal regions 663d, 663e that may accommodate three different modes of operation of device 610. With the actuator 662 in the second region 663b as shown in FIG. 19A, the conical head 638 contacts the distal end 654 of the balloon 650 to substantially seal the outlet 658, as shown in FIG. 18A. In addition, the inner member 630 may be positioned in the axial direction.
If balloon inflatation is required during infusion, the distal balloon compartment 654 may have a size that provides resistance to flow. Resistance to this flow may cause at least partial expansion of the balloon 650 while carrying fluid from outlet 658. Alternatively, the balloon compartment 654 may be formed large enough not to provide significant resistance to flow if the balloon 650 remains approximately folded while fluid can be transported from the outlet 658.
When the actuator 662 is guided distally into the first region 663a, as shown in FIG. 19B, the inner member 630 is conical away from the distal end 654 of the balloon 650, eg, as shown in FIG. 18B. Guided head 638 and advanced distally to open exit 658. When the actuator 662 is guided proximally within the third region 663c, the inner member 630 may be retracted proximally to expand the spiral member 670. If necessary, the third region 663c is sufficient so that the actuator 662 can be guided along the length of the third region 663c, for example to vary the size of the expanding helical spiral member 670. May have a length. For example, the actuator 662 may be moved to any intermediate position along the third region 663c by the spiral member 670 continuously extending to a larger diameter as the actuator 662 is guided proximally within the third region 663c. May be placed. Thus, by adjusting the position of the actuator 662 within the third region 663, the user may control the diameter of the spiral member 670 to the approximate size of the biological structure faced.
Optionally, slot 663 may optionally have one or more pockets or detents capable of capturing features on the actuator 662, eg, to releasably secure the actuator 662 in one or more positions, as in the previous embodiment. It may have a detent (not shown). As an addition or alternative, the housing 661, like other embodiments herein, specifies, for example, the position of the inner member 630 and / or the mode of the device 610 when the actuator 662 is received in a particular area or pocket. It may have one or more visual indicators (not shown) to do so.
The device 610 is urged, for example, to move the actuator 662 into any of the areas 663a-663c, but any of the other areas 663a-663c to guide the device 610 into any of the other modes. It may be urged into one of three modes so that it can be selectively guided within. For example, as described above, the spring element 690 engages the conical head 638 with the distal end 654 of the balloon 650 to substantially seal and / or improve the seal of the outlet 658, as shown in FIG. 18B. It may have a distal portion 696 capable of proximally urging the inner member 630 to allow. The length of the distal portion 696 and the relative position of the first collar 692 and the spring retainer 655 so that the distal portion 696 receives a slight compressive force when the conical head 638 engages the distal end 654 of the balloon 650. It may be set, which can ensure that the outlet 658 remains substantially sealed. As a result, the actuator 662 may be urged towards the second region 663b, as shown in FIG. 19B.
In addition, the proximal portion 694 of the spring element 690 may provide compliance to the spiral member 670, for example when guided between the first and second modes. For example, with the actuator 662 in the second region 663b, the proximal portion 694 of the spring element 690 maintains sufficient tension on the helical member 670 to constrain the helical member 670 near the inner member 630. It's okay. If the distal end 674 of the spiral member 670 is attached directly to the inner member 630, it must be provided with sufficient slack to accommodate the advance of the inner member 630 to open the outlet 658. That can increase the contour of the spiral member 670 and, as a result, the contour of the entire device 610.
As the actuator 662 advances to the first region 663a, the first collar 692 moves distally and the proximal portion 694 of the spring element 690 may absorb most or almost all of the resulting displacement. For example, instead of the spiral member 670 receiving near-axial tension, the proximal portion 694 has sufficient elasticity to extend axially, which interferes with the outlet 658 open. It is possible to act on the resulting proximal force (ie, the spiral member 670 may act as a spring for the desired distal advance of the inner member 630). The proximal portion 692 of the spring element 690 reduces the distal tension that can pull the distal end 674 of the helical member 670 distally, potentially stretching or elasticizing the helical member 670 when the outlet 658 is opened. Transform.
Further referring to FIGS. 21A to 21D, in use, the device 610 is in a state where the balloon 650 and the spiral member 670 are folded and the valve provided by the conical head 638 is sealed, as shown in FIG. 21A. That is, the actuator 662 may be provided to the user in the second region 663b of slot 663. For example, as described above, the conical head 638 may be urged to seal the outlet 658 within the distal end 654 of the balloon 650, thereby urging the actuator 662 towards the second region 663b. ..
The distal end of device 610 may be introduced into the patient's body, eg, into the lumen of the body (not shown), with the outlet 658 being substantially sealed, as in the previous embodiment. At the desired position, the actuator 662 may be advanced into the first region 663a, as shown in FIG. 19B, thereby guiding the device 610 into expansion mode, i.e. the balloon to open the outlet 658. apart from the distal end 654 of the 650 moves the conical head 638, for example, as shown in FIG. 18B, (Baru although not extend down 650) to compress the distal portion 696 of the spring element 690. Thus, the fluid introduced into the first port 664a through the first lumen 626 of the outer member 620, as in the previous embodiment, for example, without substantially expanding the balloon 650, inside the balloon 656. It may exit through outlet 658 and into the lumen of the body beyond the conical head 638. Alternatively, as described above, the outlet 658 may provide sufficient resistance to the fluid passing through where the balloon 650 is at least partially expanded as the fluid is transported through the outlet 658. In the infusion mode, in contrast, a diagnostic fluid, a therapeutic fluid, or the like is introduced into the body lumen while the device 610 is operated or maintained substantially immobile, as in the previous embodiment. Good.
After sufficient fluid has been delivered and / or if it is necessary to seal the outlet 658, the actuator 662 may be retracted into the second region 663b, as shown in FIGS. 18A and 21B. Guide the inner member 630 proximally until the conical head 638 engages the distal end 654 of the balloon 650 and substantially seals the outlet 658. The spring element 690 may have a spring constant that provides sufficient urging force to ensure that the outlet 658 is substantially sealed by the conical head 638. Alternatively, the spring element 690 is such that when the actuator 662 is released, the energy stored in the distal portion 696 of the spring element 690 causes the conical head 638 to engage the distal end 654 of the balloon 650 and exit 658. Sufficient urging force may be provided to automatically guide the inner member 630 proximally until it is substantially sealed. As a result, the actuator 662 may be guided to automatically return into the second region 663b of slot 663, and the spring element 690 may provide a valve closure of secure operation at outlet 658. This is a force that is provided by the spring element 690 at the distal end of the device 610 and is subject to axial compliance within the inner and outer members 630, 620 and is therefore unreliable. It is useful because it does not depend on the force transmitted beyond the length of the device 610.
As shown in FIG. 21B, in the second mode, as in the previous embodiment, any fluid introduced through the first lumen 626 flows into the balloon's interior 656 to expand the balloon 650. For example, in this mode, the balloon 650 may be extended into an elongated, substantially cylindrical shape having a main portion of substantially uniform diameter between, for example, tapered ends. The balloon 650 is the method shown in FIGS. 9E-9G, similar to the method described elsewhere herein, for example, to widen a stenosis, obstruction or other obstacle, the wall of the lumen of the body. May be used to inflate or apply substantial pressure. Alternatively, the balloon 650, as in other embodiments herein, may be axially guided by the balloon 650 to be expanded within the body lumen to remove material within the body lumen. As such, it may be formed from an elastic material and / or a substantially flexible material.
Further, as shown in FIG. 19C, the actuator 662, like other embodiments herein, is used in FIGS. 18C and 21D to remove, for example, thrombi or other unwanted substances in the lumen of the body. It may be retracted into the third region 663c to guide the device 610 into the third mode shown in. For example, with the balloon 650 folded, the actuator 662 may be retracted proximally to guide the inner member 630, thereby compressing the spiral member 670 axially to the proximal end 672. Guide the distal end 674 of the spiral member 670 to the proximal direction. Similar to other embodiments herein, this causes the spiral member 670 to extend radially outward as it is compressed axially, thereby causing the balloon 650, as shown in FIGS. 18C and 21D. Is compressed in the axial direction and expanded around the spiral member 670 in the radial direction in an expansion spiral shape.
The length of the third region 663c of slot 663 is the inner member 630 in a predetermined manner when compressing and expanding the balloon 650 and spiral member 670, for example to prevent excessive compression of the balloon 650 and / or spiral member 670. Proximal movement of the helix may be restricted. For example, as described above, the actuator 662 may be placed at any intermediate position along the length of the third region 663c in order to change the diameter of the extended spiral member 670. By adjusting the position of the actuator 662 along the third region 663c, the user has sufficient friction and / or engagement with the wall of the body's lumen to be treated, for example to remove sufficient material from the wall. The diameter of the helical member 670 to accommodate the patient's vascular structure can be controlled to provide a fit.
If the balloon 650 is pre-inflated, the balloon 650 is contracted around the spiral member 670 before a vacuum source, such as a syringe or vacuum line (not shown), guides the actuator 662 into the third region 663c. It may be coupled to side port 664a to drain fluid from the interior 656 for folding. Alternatively, if the balloon 650 is not pre-inflated, for example if the thrombus should be removed before expanding the lumen of the body, the balloon 650 may already be fully folded or remain contracted. There is no need to use additional vacuum to fold the balloon 650 as it may.
Alternatively, as shown in FIGS. 21C and 21D, the actuator 662 may be guided from the second region 663b to the third region 663c while the balloon 650 remains inflated. For example, as shown in FIG. 21B, while the balloon 650 is inflated (if not yet inflated), the spiral member 670 remains snugly wrapped around the inner member 630. With reference to FIG. 21C, the inner member 630 may be guided proximally to the outer member 620, for example by guiding the actuator 662 proximally within the third region 663c, as described above. This is due to the partial restraint within the lumen of the body and / or the fluid remaining within the 656 inside the balloon 650, which causes the balloon 650 to be compressed axially. The balloon 650 may be kept nearly cylindrical, although it will give in.
Optionally, device 610 is first to prevent excessive expansion of the balloon 650 when compressed axially, for example on a handle 660 on the proximal end 622 of the outer member 620 or elsewhere. It may have one or more safety valves or other features (not shown) that communicate with one lumen 626. For example, the safety valve may allow excess fluid to drain from the inside 656 of the balloon 650 as the inner member 630 is guided proximally, thereby causing the inside 656 of the balloon 650 and / or the inside of the first lumen 626. Automatically reduces the volume of the fluid. Alternatively, the inner member 630 can be opened by the user before or when the inner member 630 is proximally guided, or the actuator 662 is guided along slot 663 to a predetermined position in or adjacent to a third region 663c. A manual valve or other feature (not shown) that is activated at the time of operation may be provided on the handle 660.
As shown in FIG. 21C, the helical member 670 may extend radially outward within the balloon 650 expanded as the inner member 630 is proximally guided to adopt an extended helical shape. The movement of the spiral member 670 is relatively unimpeded by the balloon 650, allowing the balloon 650 to expand more evenly than if the spiral member 670 were expanded within the folded balloon 650. Moreover, since the balloon 650 is already inflated, the expansion of the spiral member 670 also forms a tight fold or other stress on the balloon 650 that can damage the balloon 650 as the spiral member 670 expands. Can reduce the risk.
Referring to FIG. 21D, when the spiral member 670 is fully expanded, the balloon 650 may be depressed, which means that the balloon 650 is folded around the expanded spiral member 670 to substantially reshape the spiral member 670. Allows adoption in. Thus, the balloon 650 may provide a substantially impermeable layer around the helical member 670, which prevents the material to be removed from being trapped in or around the helical member 670. obtain. A folded balloon 650 clinging around the expanded helical member 670, for example, relative to the helical member 670 to provide a more robust helical structure for removing blood clots or other substances in the lumen of the body. Mechanical reinforcement may be provided.
After sufficient thrombus or other material has been removed, the balloon 650 may be partially or completely inflated again, and the actuator 662 and inner member 630 are directed towards a smaller contour around the inner member 630. It may advance distally to guide the spiral member 670 back. As the actuator 662 and inner member 630 advance to the second position, the balloon 650 may be deflated, for example by coupling a vacuum source to port 664a, and / or the actuator 662 and inner member 630 It may be advanced to the distal position to open the valve. Alternatively, the inner member 630 may advance distally with the balloon 650, which remains folded to guide the spiral member 670 towards a smaller contour, as in the previous embodiment. When folded, the device 610 may be guided to another location within the patient's body, for example for injection of additional fluid, swelling, and / or thrombectomy, or is completely removed from the patient's body. You can.
With reference to FIGS. 22A to 22D, the device 610 has an outer member 620 ", an inner member 630", a balloon 650 ", a conical head 638", a spring element 690 "and a handle 660". Another exemplary embodiment of the device 610 "for treating the lumen of the body, which is configured and operates in much the same manner, is shown. The device 610" is different from the device 610 and includes, for example, a spring element 690 ". Although it has a spiral member 670'with a distal end 674 "coupled to the inner member 630" via, the proximal end 672 "of the spiral member 670" is not coupled to the outer member 620 ". Instead, the proximal end 672 "of the spiral member 670" extends proximally through the outer member 620 "and is coupled to a first actuator 662a" on the handle 660 ", an actuator cable, wire, or other It may be coupled to the elongated member 673 ".
Thus, the axial movement of the inner member 630 "with respect to the outer member 620" may be largely independent of the expansion and / or folding of the spiral member 670 "for example, the second actuator 662b" on the handle 660 ". , Similar to the embodiments described above, may be guided to move the inner member 620 "and the conical head 638" to open and / or close the outlet 658 ". However, the distal end 674 "of the spiral member 670" may be substantially separated from such movement, for example by a spring element 690 ", as in the previous embodiment. Instead, the first actuator 662a" As shown in FIGS. 22B and 22C, the actuator member 673 "may be axially guided to guide it axially. This action is directed towards the distal end 674" to extend the spiral member 670 ". The proximal end 672 "of the spiral member 670" may be guided distally or proximally away from the distal end 674 "to fold the spiral member 670".
In use, the device 610 "is the device 610" as shown in FIG. 22A, i.e., the balloon 650 "and the spiral member 670" are folded and the conical head 638 "substantially seals the outlet 658". May be provided to. For example, as described above, the inner member 630 "and, as a result, the conical head 638" is urged by the spring element 690 "to substantially seal the outlet 658" of the distal end 654 "of the balloon 650. The second actuator 662b "may be urged to the proximal position. If it is required to inject fluid through the first lumen 626 "of the outer member 620", the second actuator 662b "may be guided to a distal position, thereby, for example, as described above. , Advance the inner member 630 "and conical head 638" away from the distal end 654 "of the balloon 650" to open the outlet 658 ". When the second actuator 662b "is retracted, the conical head 638" may substantially seal the outlet 658 "by a spring element 690" that provides sufficient urging force to improve the seal. Alternatively, the spring element 690 ", as in other embodiments herein, has a conical head 638" substantially sealing the outlet 658 "when the second actuator 662b" is released. Sufficient urging force may be provided so that the actuator 662b "can automatically retract to its proximal position.
As shown in FIG. 21B, as in the previous embodiment, with the second actuator 662b in the proximal position, substantially any fluid introduced through the first lumen 626 is the balloon. Inflow into the internal 656 "to expand the balloon 650". For example, in this mode, the balloon 650 "expands, for example, a stenosis, obstruction or other obstruction, similar to the method described elsewhere herein. Therefore, it may be used to widen the walls of the lumen of the body or to exert substantial pressure on the walls.
If necessary, with the balloon 650 "expanded, the actuator 662a" advances to its distal position to extend the spiral member 670 "radially outward within the balloon 650", as shown in FIG. 22C. You may be forced to. When the spiral member 670 "expands, the balloon 650" may remain fully expanded without being substantially shortened, and the balloon 650 "reduces crease formation as can occur in previous embodiments. Thus, the helical member 670 "can freely extend from the balloon 650" to the desired helical shape without substantial interference. As shown in FIG. 22D, when the helical member 670 "is fully expanded. , The balloon 650 "may be deflated, for example by opening the valve and / or by sucking fluid from the balloon 650", which, as mentioned above, expands the balloon 650 ". It is possible to substantially adopt the shape of the spiral member 670 "folded around the spiral member 670".
After sufficient thrombus or other material has been removed, the balloon 650 "is inflated again partially or completely, and the actuator 662a" spirals around the inner member 630 "towards a small contour 670. It may be retracted proximally to guide it back. When the actuator 662a "is guided to its proximal position, the balloon 650" may be deflated and the device 610 "may be guided to another position or removed from the patient's body.
With reference to FIGS. 29, 30A and 30b, a device 710 treating a body cavity similar to the device 610 shown in FIGS. 18A-19C, except for the spiral member 670, which is similar to the previous embodiment. Yet another embodiment of is shown. For example, device 710 has an outer tubular member 720, an inner member 730, and an expandable balloon 750 held by the inner and / or outer members 720, 730, much like the previous embodiment. There is. Further, the device 710 is coupled and / or provided on the proximal end 722 of the outer member 720, eg, to operate the outer member 720 and / or the entire device 710, much like the previous embodiment. Has a handle or hub 760. Also similar to the previous embodiment, the device 710 has, for example, a first mode of expanding the obstruction in the lumen of the body (FIG. 30A) and a second mode of injecting fluid into the lumen of the body (FIG. 30B). However, the balloon 750 may have an actuator 762 on the handle 760 that operates the device 710 in multiple modes (in the folded state).
As shown, the outer member 720 may be configured as in a previous embodiment, with a proximal end 722, a distal end 724 having a size for introduction into the lumen of the body, and a proximal. It has a first lumen 726 extending along the central longitudinal line 727 between the ends 722 and the distal ends 724. The inner member 730 is sized to optionally accept a proximal end (not shown) and a distal end 734, eg, through which a guide wire or other instrument (not shown) can be slidably moved. It has a second lumen 736 and has. The inner member 730 is similar to the previous embodiment, for example, in the first lumen 726 of the outer member 720 such that an annular space through which one or more fluids flow is defined between the outer and inner members 720, 730. Has a size that is acceptable for slide movement. One or more sealing members, such as the conical head 738, may be provided on the distal end 734 of the inner member 730 to provide the valve, as in the previous embodiment.
As best visible in FIG. 30A, the balloon 750 has a proximal end 752 coupled to the distal end 724 of the outer member, a distal end 754 defining the outlet 758, and a first lumen 726 and an outlet 758. It has an internal 756 that communicates with it. The distal end 734 of the inner member 730 is the distal end of the balloon 750 such that the outlet 758 defines an annular passage between, for example, the distal end 754 of the balloon 750 and the distal end 734 of the inner member 730 when opened. It may extend through 754. The distal end 754 of the balloon 750 has a spring stopper, such as a collar or sleeve 755, that is attached or secured within the distal end 754, for example by adhesive bonding, tight fitting, ultrasonic welding, melting, etc. .. The spring retainer 755, as in the previous embodiment, is from the outlet 758 so that the fluid flowing through the outlet 758 and the spring retainer 755 do not substantially interfere when the conical head 738 is guided away from the outlet 758. They may be spaced proximal to each other.
As in the previous embodiment, the spring element 790 is compressed between the collar 792 and the spring retainer 755, eg, to urge the conical head 738 to substantially seal the outlet 758. As such, it may be coupled to the inner member 730 by, for example, a collar or other mounting element 792. For example, the proximal or first end 790a of the spring element 790 may be attached or coupled to the collar 792, and the distal or second end 790b of the spring element 790 may be coupled to the spring retainer 755 or. You may simply contact.
The collar 792 may be attached or secured to the inner member 730 by, for example, adhesive bonding, melting, tight fitting, one or more connectors (not shown), and the like. The distal end 790b of the spring element 790 may float freely around the inner member 730, eg, to provide the desired urging force to the device 710, as in the previous embodiment. Optionally, the distal end 790b has a planar ring defining a plane approximately perpendicular to the vertical line 727, eg, to provide improved juxtaposition to the spring retainer 755, if necessary. Good. The spring element 790, for example, is the distal end of the balloon 750 such that the spring element 790 can move freely within the distal end 754 of the balloon 750, which is restricted by the contact between the distal end 790b and the spring retainer 755. It may have a diameter smaller than 754 and larger than the inner diameter of the spring retainer 755. Alternatively, the distal end 790b of the spring element 790 may be attached or secured to the spring retainer 755 or to the distal end 754 of the balloon 750, if desired.
The collar 792 is placed on the inner member 730 so that the collar 792 does not substantially interfere with the flow of fluid through the distal end 754 and outlet 758 when the outlet 758 opens, for example as shown in FIG. 30B. Good. For example, the collar 792 may be proximally offset from the conical head 738 by a predetermined distance, and / or the spring element 790 has a predetermined length to provide the desired urging force without interfering with the flow of fluid. May have As in the previous embodiment, these lengths and / or spring constants of the spring element 790 are such that they are separated from the balloon 750 to open the outlet 758, for example to substantially seal the outlet 758. The conical head 738 is urged against the distal end 754 of the balloon 750 so that the inner member 730 can be guided distally to move the conical head 738.
Optionally, as in the previous embodiment, around at least a portion of the spring element 790, for example, to prevent the balloon 750 or other features of the device 710 from being caught within the winding of the spring element 790. , Thin film, pod case or other structure (not shown) may be provided. In addition or as an alternative, device 710, as in other embodiments herein, positions and / or advances device 710 in use, eg, on the distal end 734 and / or balloon 750 of inner member 730. It may have one or more markers (not shown) for facilitation.
Unlike the previous embodiment, the distal end 754 of the balloon 750 has a distal extension or tip 780 shaped and / or configured to facilitate opening and / or closing of the outlet 758. .. For example, as best visible in FIG. 30B, the distal end 754 of the balloon 750 may be terminated with a distal tip 780 that extends outward from the balloon 750, i.e., distally. The distal tip 780 may be, for example, extruded or blow molded from the same material as the entire balloon 750 and integrally formed from the distal end 754 of the balloon 750, or, for example, an adhesive bond, ultrasonic. It may be formed or attached separately to the distal end 754 by welding, melting, etc.
Optionally, the distal end 754 and / or the distal tip 780 of the balloon 750 may have a coating or other liner 757 adjacent to, for example, the spring retainer 755. For example, the liner 757 may contact the medial portion of the distal tip 780 and / or contact the conical head 738 to reduce friction and / or adhesion between the balloon 750 and the conical head 738, as in the previous embodiment. Alternatively, it may have a lubricious and / or low surface energy material such as PTFE applied to the distal end 754 of the balloon 750.
In an exemplary embodiment, as best visible in FIG. 30B, the distal end 780 exits, for example, to facilitate acceptance of the conical head 738 within the distal tip 780, and / or when closed. It may spread outward in a shape similar to the conical head 738 to maximize surface contact between them to substantially seal the 758. As an addition or alternative, the distal tip 780 may increase the clearance of the outlet 758 around the conical head 738 upon opening, thereby increasing the open area of the outlet 758. The distal tip 780 may be deflected to an outwardly flared shape and / or approximately the outwardly flared shape as the conical head 738 is guided away from the tip 780 to open the outlet 758. It may have sufficient structural integrity to maintain.
Alternatively, as shown in FIGS. 31A and 31B, the distal tip 780'may be deflected to a nearly constant diameter similar to, for example, the distal end 754', but the distal end 754 of the balloon 750'. It may be expandable and / or relatively flexible as compared to'. For example, the distal tip 780'may be flexible enough and / or elastic enough to expand when the conical head 738' is accepted within the exit 758'. To facilitate such dilation, the distal tip 780'is substantially smaller than the adjacent distal tip 754', but is sufficiently walled to withstand a rift or other damage to the distal tip 780'. May have thickness.
Thus, as shown in FIG. 31A, when the conical head 738'is seated within the tip 780', the distal tip 780'provides substantial surface contact between the conical head 738' and the distal tip 780'. May be elastically expanded to facilitate sealing as a result. The flexibility of the distal tip 780'may withstand driving or pushing into the conical head 738' and may facilitate continuous disconnection. When the conical head 738'is guided away from the distal tip 780' to open the exit 758', the distal tip 780'is to define the exit 758' as shown in FIG. 31B. , May elastically return towards its original diameter. When the conical head 738's seats again within the distal tip 780', the distal tip 780' withstands bends and instead improves the seal with virtually no leakage around the distal tip 780'. You may freely extend it to make it work.
Referring to FIG. 29, as in the previous embodiment, the handle 760 may or may be coupled to the proximal end 722 of the outer member 720, eg, to operate the outer member 720 and / or the entire device 710. It may be provided on the end 722. The handle 760 generally has a housing 761 attached to the outer member 720, one or more ports 764 for accessing the lumen of the device 710, and / or the device 710 between injection and expansion modes. It may have one or more actuators 762, for guiding.
For example, the handle 760 may have a first side port 764a communicating with an annular first lumen 726 within the outer member 720, and a balloon 750 (depending on the position of the inner member 730 and the conical head 738). Device 710 with one or more fluid or vacuum sources, such as a syringe or other source (not shown) for transporting fluid through the first lumen 726 and / or through the outlet 758 into the interior 756 of the device 710. It may have a connector such as a luer lock mounting component for coupling to. Further, the handle 760 may have a second port 764b communicating with a second lumen 736 of the inner member 730. The second port 764b may be adapted to accept a guide wire or other instrument (not shown) through the second port 764b into the second lumen 736 while maintaining a substantially fluid airtight seal, eg. It may have a connector such as a luer lock attachment and / or one or more seals such as a hemostatic seal (not shown).
Further, the handle 760, as in other embodiments herein, is an inner member for moving the inner member 730, eg, to open and / or close the outlet 758 (see FIGS. 30A, 30B). It may have a slider, thumb control, push button, or other actuator 762 coupled to the 730. Optionally, the handle 760 is, for example, between the outer and inner members 720, 730, inside when moving axially with respect to the outer member 730 and handle 760, as in other embodiments herein. It may have one or more seals, bushings (not shown), etc. that can guide the member 730.
Actuator 762 within slot 763 has a first or proximal position in FIG. 29 that seals the outlet 758 and a second or distal position (not shown) that opens the outlet 758, as shown in FIG. 30B. It may be slidable between.
Referring to FIG. 32, another embodiment of device 710 "(same features have the same reference numerals but are followed by") similar to device 710 in FIG. 29 is shown. For example, device 710 "has a handle 760" with an outer member 720 ", an inner member 730", a balloon 750 ", an actuator 762", a collar 792 "and a spring clamp 755", as in the previous embodiment. It has a spring element 790 "coupled between. Optionally, the distal end 754" of the balloon 750 "opens and / or closes the outlet 758" as in the previous embodiment. It may have a distal tip 780 shaped and / or configured to facilitate.
Unlike previous embodiments, the conical head 738 "has a slanted tip 739" (which may be provided in any of the embodiments described herein) and the slanted tip 739 "is a body lumen. It is substantially flexible and may be semi-rigid or substantially rigid to facilitate forward and / or other operation of device 710 "within (not shown). For example, the tilted tip 739 "can facilitate the occlusion or crossing other features within the lumen of the body. When the occlusion faces the slanted tip 739", the device 710 "is around its longitudinal line 727". May be rotated and / or advanced distally, allowing the tilted tip 739 "to rise above and / or around the occlusion, allowing further advancement of the device 710".
With reference to FIGS. 33A and 33B, another alternative distal tip 739'''' provided on device 710'''' (which may be any of the embodiments herein) is shown. .. In general, the device 710''' has a handle 760''' having an outer member 720''', an inner member 730''', a balloon 750'''' and an actuator 762'''', as in the previous embodiment. It has a'' and a spring element 790''' coupled between the collar 792''' and the spring retainer 755'''. Optionally, the distal end 754''' of the balloon 750''' is shaped to facilitate opening and / or closing of the outlet 758''', as in the previous embodiment. It may have a distal tip 780''' constructed.
Unlike previous embodiments, the conical head 738''' extends distally from the conical head 738''' (which can be provided on any of the embodiments described herein) with an extended "J". It has a shaped or curved distal tip 739'''. The distal tip 739'''may have a length of, for example, 5 mm to 40 mm beyond the conical head 738'''. The distal tip 739'''may be deflected into a curved shape, eg, as shown in FIG. 33B, but the distal tip 739 when a guide wire 699 or other instrument is inserted through the inner member 730'''. The'''' may be substantially flexible so that it can be at least partially straightened, as shown in FIG. 33A. The distal tip 739'''can be useful for following device 710''' through winding blood vessels or other body lumens (not shown).
For example, in use, the device 710'''may be advanced on a guide wire or other rail 699 that can nearly straighten the distal tip 739''', as shown in FIG. 33A. Due to the flexibility of the distal tip 739''', the device 710''' allows the distal tip 739''' to easily advance without bending the guide wire 699 or substantially impeding advancement. Can be made to. However, when the device 710'''' faces a narrow or angular branch-like lumen to be guided from the main lumen, the guide wire 699 has its distal tip 739'''' in its "J" shape. Alternatively, it may be pulled back at least partially, i.e., at least from the distal tip 739''' so as to elastically return towards the curved shape. The device 710'''is then axially rotated and / or manipulated to insert the distal tip 739'''into the target branch-like lumen, and then the branch-like tube. It may be advanced to adequately guide the distal tip 739'''into the lumen. The guide wire 699 may be advanced into the branched lumen through the distal tip 739''' to further guide the device 710'''into the patient's body.
Reference to FIGS. 34A-34C shows another embodiment of the handle that may be provided on any of the devices of the present specification, eg, devices 710, 710', 710 ", or 710'''. For example, FIG. 34A comprises a handle 860 having a housing 861 attached to an outer member 820 (which may be any of the embodiments herein), which is one or more for accessing the lumen of the device. Port 864 and / or one or more actuators 862 for guiding the device between its different modes of operation.
For example, the handle 860 may have a first side port 864a communicating with an annular first lumen (not shown) within the outer member 820, as in the previous embodiment, and the handle 820 has one It may have a connector such as a luer lock mounting component for coupling the above fluid source or vacuum source. Further, the handle 860 has a second port 864b communicating with a second lumen of an inner member (not shown), which is a connector such as a luer lock attachment and / or substantially. It may have one or more seals, such as a hemostatic seal, which may be suitable for accepting guide wires or other instruments (not shown) through the second port 864b while maintaining a fluid airtight seal.
Further, as in other embodiments herein, the handle 860 is an inner member (shown) to move the inner member, eg, to open and / or close the outlet of a balloon (not shown). It may have a slider, thumb control, push button, or other actuator 862 coupled to the balloon. As shown, the housing 861 has a first or proximal region that accepts the actuator 762 to seal the outlet and a second or distal region that accepts the actuator 762 to open the outlet, as in the previous embodiment. It has a slot 863 with an area and.
Unlike previous embodiments, the handle 860 may have, for example, a relatively long housing 861 having the same length as or longer than the hand of a typical user. Thus, such embodiments may facilitate gripping and / or manipulating the handle 860 and, as a result, the device in which the handle 860 is incorporated.
In contrast, FIG. 34B shows another embodiment of the handle 860'with a relatively short and / or small handle 861'. Some procedures may be performed in a relatively narrow operating range, and as a result, miniaturization is more important than the ergonomic benefits offered by longer handles, such as the handle 860 in Figure 34A. obtain. Thus, the handle 860'may have a slot 863' that extends over the substantial overall length of the handle 860'. Also, unlike the handle 860, the handle 860' in FIG. 34B has a first side port 864a' that extends diagonally from the housing 861', instead of being approximately perpendicular to the housing 861'.
FIG. 34C illustrates yet another embodiment of the handle 860'similar to the handle 860', except that the first side port 864a' is located on the end of the length of the flexible tube 865'. These tubes 865 "may provide additional flexibility in the relative position of the fluid source, such as a syringe or other infusion device (not shown) coupled to first side port 864a". , 1st Sideport 864a instead of standard luer mounting components, such as those disclosed in US Pat. Nos. 3,192,949, 5,390,898, or 5,775,671. May have. Such a valve may facilitate the preparation and use of the balloon on a device incorporating the handle 860 ", for example, a first side port (not shown) along the first lumen of the outer member 820 to the inside of the balloon. After providing a path in the balloon to remove all air during the 864a ", the syringe or other infusion device is removed from the first side port 864a" and refilled or refilled or of air into the device. Another device is installed in the first side port 864a "with almost no risk of reintroduction. Thus, the user does not have to have all the inflator and / or infusion devices currently attached to the device, but various devices may be removed and attached as required during the procedure.
With reference to FIG. 35, yet another embodiment of the device 910 that treats the lumen of the body in much the same manner as the previous embodiment is shown. As shown, the device 910 may be configured much like a previous embodiment and includes an outer tubular member 920, an inner member 930, an expandable balloon 950, and a handle 960.
The outer member 920 may be configured as in a previous embodiment, with a proximal end (not shown), a distal end 924 having a size for introduction into the lumen of the body, and a proximal end. And a first lumen 926 extending along the central longitudinal line 927 between the distal ends 924. The inner member 930 is sized to accommodate a proximal end (not shown) and a distal end 934, optionally through which, for example, a guide wire or other instrument (not shown) can be slidably moved. It has a second lumen 936 and has. The inner member 930 is similar to the previous embodiment of the outer member 920 so that, for example, an annular space is defined between the outer and inner members 920, 930 to allow one or more fluids to flow through it. It has a size that can be slidably accepted in the first lumen 926. As in the previous embodiment, one or more sealing members, such as the conical head 938, may be provided on the distal end 934 of the inner member 930 to provide the valve.
Unlike the previous embodiment, the balloon 950 has proximal ends 952, 954 both attached or coupled to the outer member 920. The outer member 920 has one or more openings 929 (one shown) at the distal end 924 such that the inner 956 communicates with the first lumen 926 through the opening 929. The distal end 934 of the inner member 930, eg, beyond the outlet 958 of the outer member 920, the distal end 924 of the outer member 920 so that the outlet 958 defines an annular passage between the outer and inner members 920, 930. May extend through. The inner member 930 is the first or proximal to the distal end 924 of the outer member 920 to partially accept or engage the conical head 938 to substantially seal the outlet 958, as in the previous embodiment. It may be movable relative to the outer member 920 between the position and the second or distal position where the conical head 938 is spaced apart from the outer member 920 to open the outlet 958.
The handle 960 may be mounted or provided on the proximal end of the outer member 920, for example to operate the outer member 920 and / or the entire device 910. Similar to the previous embodiment, the handle 960 implements the device 910 in multiple modes, for example, a first mode for expanding the occlusion in the body lumen and a second mode for injecting fluid into the body lumen. It may have an actuator (not shown) to actuate. For example, the actuator may be movable from a first position where the conical head 938 substantially seals the outlet 958 and a second position where the outlet 958 is opened.
With the conical head 938 sealing the outlet 958, some of the fluid introduced into the first lumen 926 flows into the inner 956 of the balloon 950, thereby expanding the balloon 950. Unlike the previous embodiment, both the proximal and distal ends of the balloon 950 are attached to the outer member 920, and the length of the balloon 950 remains substantially constant during expansion and / or folding. You can. The balloon 950 may remain folded, with the conical head 938 guided away from the outer member 920 to open the outlet 958, and some fluid introduced through the first lumen 926. , Outflow from outlet 958 into the lumen of the body into which device 910 is introduced.
As shown, the inner member 930 may be integrated into the device 910 as in the previous embodiment. Alternatively, the inner member 930 may be detached or independent of the other components of the device 910. For example, in one embodiment, the inner member 930 may be introduced into the patient's body independently of the outer member 920, eg, on or in place of the guide wire. When the distal end 934 is positioned in the desired position within the patient's body, the rest of the device 910, the outer member 920 with the folded balloon 950, is in the desired position beyond the inner member 930. You may be moved forward.
For example, the proximal end of the inner member 930 extending from the patient's body may be loaded through outlet 958, and the outer member 920 until the proximal end of the inner member 930 is accepted within or extends from the handle 960. May be advanced. The relative lengths of the outer and inner members 920, 930 appear to be such that the outlet 958 is placed adjacent to the conical head 938 when the proximal end of the inner member 930 is accepted by or extends from the handle 960. You can.
If necessary, the handle 960 will place the inner member 930 on a push button, thumb control, or other actuator (not shown) on the handle 960 when the outer member 920 is sufficiently advanced beyond the inner member 930. It may have a coupler (not shown) that can be started to engage. Thus, as a result, the actuator may be initiated to guide the inner member 930 and the conical head 938 axially with respect to the outer member 920 to seal or open the outlet 958. It will be appreciated that other embodiments described elsewhere herein may be detached, for example in such a way as to include an inner member independent of the outer member and / or other components of the device.
Optionally, the independent inner member 930 may provide the user with confirmation that the outer member 920 has been sufficiently advanced to place the exit 958 adjacent to the conical head 938. It may have other visual indicators (not shown). For example, the marker may be provided on the proximal end of the inner member 930 that is visible when the proximal end of the inner member 930 extends from the handle 960, whereby the conical head 938 seals the outlet 958 or is adjacent to the outlet 958. Provides a visual indication of what to do. In addition or as an alternative, the outer member 920 may be advanced until the distal end 924 contacts or engages with the conical head 938, which is used to seal or open the outlet 958. It can provide tactile feedback of good things.
With the outer member 920 advanced beyond the inner member 930, the outlet 958 may be open, eg, a contrast agent or one or more diagnostic agents to facilitate imaging of the desired position and /. Alternatively, a fluid such as a therapeutic agent may be delivered to the desired location. If it is necessary to inflate the balloon 950, the conical head 938 is proximally guided to seal the exit 958, eg, to spread the stenosis or other obstacle at the desired location, similar to the method described above. A fluid may be carried to inflate the balloon 950. After treating the desired position, the device 910 may be guided to another position or removed from the patient's body. For example, both the outer and inner members 920, 930 may be removed, or (eg, if they are joined together, the outer member 920 is advanced beyond the inner member 930 and then from the inner member 930 to the outer member. The outer member 920 may be removed first (after disconnecting the 920).
Reference to FIGS. 36-37C shows yet another embodiment of the device 1010 for treating the lumen of the body, which can be configured much like the other devices described above, with the outer tubular member 1020 and the inner. It has a member 1030 and an expandable balloon 1050 carried by an inner member 1030. As in the previous embodiment, the device 1010, like the other embodiments described elsewhere herein, uses a balloon 1050 to, for example, remove substances, dilate or treat the lumen of the body. It may be operable in multiple modes: a first mode of expansion and a second mode of transporting fluid into the lumen of the body. Unlike the previous embodiment, the device 1010 has an outlet and a valve proximal to the balloon 1050 instead of being distal to the balloon 1050.
In general, the outer member 1020 is between the proximal end (not shown), the distal end 1024 having a size for introduction into the lumen of the body, and the exit 1027 of the proximal and distal ends 1024. It has a first lumen 1026, which extends in. Inner member 1030 has a proximal end (not shown) and a distal end 1034, and optionally through, for example, a guide wire or other instrument (not shown). A second lumen (not shown) extending between the proximal end and the exit (not shown) may be provided within the distal tip 1035, which may have a size that allows it to slide and move. Similar to other embodiments herein, an actuator coupled to the inner member 1020 to guide the inner member 1030 axially relative to the outer member 1020 to guide the device 1010 between different modes. A handle (not shown) with (not shown) may be provided on the proximal end of the outer member 1020.
The balloon 1050 is, for example, a distal end 1052 attached to the inner member 1030 adjacent to the distal tip 1035 and a proximal end 1052 proximal to the distal tip 1035 and attached to the distal end 1034 of the inner member 1030. And has an internal 1056. The balloon 1050, like other embodiments herein, may be formed from an elastic material, eg, to provide a flexible or semi-flexible balloon, or substantially to provide an inflexible balloon. May be formed from a non-elastic material.
A sealing member 1038 may be provided on the distal end 1034 of the inner member 1032 adjacent to the proximal end 1052 of the balloon 1050, as best visible in FIGS. 37A and 37B. For example, as shown, the seal member 1038 may be attached to the outer surface of the inner member 1030, and the proximal end 1052 of the balloon 1050 may be attached to the seal member 1038. As shown, the proximal end 1052 of the balloon 1050 extends at least partially beyond the sealing member 1038, for example by adhesive bonding, ultrasonic welding, melting, tight fitting, external collars (not shown), etc. , May be attached to the seal member 1038. Thus, the proximal end 1052 of the balloon 1050 may have a substantially fluid airtight seal by the sealing member 1038. The distal end 1054 of the balloon 1050 may be attached directly to the inner member 1030, for example using similar materials and / or methods.
The sealing member 1038 has a size larger than the inner diameter of the lumen 1026 of the outer member 1020, eg, an outer diameter, so that, for example, the sealing member 1038 can substantially seal the outlet 1027 of the outer member 1020, as described further below. May have. Optionally, the sealing member 1038 has a tapered shape, eg, a tapered proximal end 1038a, to facilitate seating or other engagement by the sealing member 1038 with the outlet 1027 of the outer member 1020. Good. The sealing member 1038, as in other embodiments herein, is made from a flexible material that can improve engagement with, for example, the distal end 1024 of the outer member 1020 in order to substantially seal the outlet 1027. May be formed.
As best visible in FIG. 37C, the seal member 1038 may have one or more passages 1039 extending approximately longitudinally between the proximal end 1038a and the distal end 1038b of the seal member 1038. The passage 1039 may have an annular passage, or may have a plurality of passages formed in the sealing member 1038. For example, the sealing member 1038 may be provided as the length of a tube to obtain one or more flutes formed in its inner wall. The sealing member 1038 is attached to the inner member 1030 or is arranged around the inner member 1030, and the groove may extend along the outer wall of the inner member 1030, thereby defining the passage 1039 together. .. Alternatively, an enclosure lumen may be formed within the wall of the tube to provide passage 1039.
Upon assembly, the sealing member 1038 may be placed around the inner member 1030 at a desired position on the distal end 1034 and may be attached there, for example by adhesive bonding, ultrasonic welding, melting or the like. The proximal end 1052 of the balloon 1050 may be positioned and attached there partially beyond the sealing member 1038. Therefore, the passage 1039 may communicate from the outside of the proximal end 1038a of the sealing member 1038 to the inside 1056 of the balloon 1050. The distal end 1054 of the balloon 1050 may be attached to the distal end 1034 of the inner member 1030. As a result, the interior 1056 of the balloon 1050 may be substantially sealed through the sealing member 1038 except in the passage 1039.
The outer member 1020 may be positioned around the inner member 1030 and the handle and actuator may be coupled to the outer and inner members 1020, 1030, as in other embodiments herein. The device 1010 may be operated in a first mode of transporting the fluid into the lumen of the body (not shown) into which the device 1010 is introduced and a second mode of inflating the balloon 1050. For example, the inner member 1030 has a first or distal position shown in FIG. 37A where the seal member 1038 is spaced from the outlet 1027 of the outer member 1020, and the seal member 1038 with respect to the outlet 1027 and / or exit. It may be movable between the second or proximal position shown in FIG. 37B, which is partially seated within 1027. In the first position, the fluid carried through the lumen 1026 of the outer member 1020 exits the outlet 1027 and flows into the body lumen proximal to the balloon 1050. In the second position, the fluid carried through the lumen 1026 flows into the inside 1056 of the balloon 1050 through the passage 1039 in the sealing member 1038, thereby inflating the balloon 1050.
In use, device 1010 may be introduced into the lumen of the body (not shown), eg, using a method similar to other embodiments herein. The device 1010 may include an inner member 1030 in a proximal position such that the seal member 1038 sits within the outlet 1027. This may provide a substantially smooth transition for the distal end 1024 of the outer member 1020 (in addition to sealing the outlet 1027), which, for example, the winding biostructure of the device 1010. When advancing through, for example, the risk of damaging the walls of the body's lumen can be minimized to facilitate the advancement of device 1010. Alternatively, device 1010 may be installed in the distal position with the inner member 1030.
At any time, the inner member 1030 is distal to the outer member 1020 when it is required to carry a fluid into the lumen of the body, for example fluorescent fluoroscopy or other contrast agents that facilitate external imaging. The sealing member 1038 may be guided distally or to a first position to open the outlet 1027 (FIG. 37A) at intervals from the end 1024. The fluid is carried through the lumen 1026 of the outer member and flows out into the lumen of the body through the outlet 1027. Because the outlet 1027 is spaced apart from the sealing member 1038, substantially all of the fluid is injected into the lumen of the body and does not flow into the balloon 1050 through passage 1039.
When it is necessary to expand the balloon 1050, the inner member 1030 may be guided to a proximal or second position to seat the seal member 1038 at least partially within the outlet 1027 of the outer member 1020 (FIG. 37B). ). The sealing member 1038 injects the fluid into the interior of the balloon 1050 through the passage 1039 of the sealing member 1038, thereby inflating the balloon 1050, so that the distal end 1024 of the outer member 1020 It may provide a substantially fluid-tight seal to. After the balloon 1050 is inflated, fluid is aspirated from the interior 1056 through passages 1039 and lumen 1026, for example to remove material, widen the obstruction, and / or treat the lumen of the body. Good. Alternatively, the inner member 1030 may be guided towards a first position to disengage the seal member 1038 and open the outlet 1026. The fluid in the balloon 1050 may escape freely into the lumen of the body through passage 1039 and may deflate the balloon 1050.
Optionally, fluid transported from outlet 1026 so that, if necessary, some fluid flows into passage 1039 to expand the balloon 1050 while the remaining fluid is transported into the body's lumen. The inner member 1030 may be positioned at an intermediate position where the can be divided, i.e., an intermediate position between the first and second positions. The relative amount of swelling and transport of fluid into the body's lumen simply moves the inner member 1030 proximally or distally to move the seal member 1038 closer to or farther from the outlet 1027. It may be adjusted as needed by guiding. This procedure is to monitor the expansion and / or position of the balloon 1050 and / or to monitor the surrounding vascular structure in which the balloon 1050 is located, for example when the fluid contains a radiation opaque contrast agent. It may be achieved using external imaging.
Alternatively, device 1010 may be used to carry and aspirate fluid using outlet 1027. For example, the user may require the device 1010 to be used to carry and remove one or more diagnostic and / or therapeutic agents within the lumen of the body. In one example, contrast dye, or other material that facilitates imaging, may be carried into the lumen of the body from outlet 1027 (along with the inner member 1030 in the distal position and the seal member 1038), and the tube of the body. It may be aspirated back into outlet 1027 to reduce the amount of contrast that remains in the lumen or migrates to other locations on the patient's body.
In another example, a cell lysate may be carried into the body's lumen to destroy, for example, a clot or other substance in the body's lumen, after which the liberated material enters the outlet 1027. It may be aspirated through lumen 1026, which may reduce the risk of bleeding or the risk of systemically exposing the cytolytic agent to the patient's body. The outlet 1027 may be used to aspirate a small piece of thrombus or other substance that is not dissolved or destroyed by the solvent and / or is free in the lumen of the body. During these procedures, the balloon 1050 is at least by guiding the inner member 1030 to an intermediate position, for example, to stop or reduce the flow through the lumen of the body while one or more solvents are being transported and aspirated. It may be partially inflated, which can reduce exposure of other locations to solvents carried into the lumen of the body.
With reference to FIG. 38, an alternative embodiment of apparatus 1010'similar to apparatus 1010 of FIGS. 36-37C is shown. The device 1010', like the device 1010, has an outer member 1020', an inner member 1030', a balloon 1050', and a seal member 1038'. The device 1010', like the device 1010, may be operable in the first and second modes by guiding the inner member 1030' between the first or distal position and the second or proximal position.
Further, however, the device 1010'is a spring or other urging coupled between the inner and outer members 1030', 1020' to urge the inner member 1030'in either the first or second position. It has a mechanism 1090'. For example, as illustrated, the spring 1090'so allows the outlet 1027' of the device 1010' to be closed normally and / or facilitates the seating of the sealing member 1038'into the outlet 1027'. The inner member 1030'may be urged in a proximal position. The urging force may be overcome by guiding the inner member 1030'distantly to retract the seal member 1038' and open the exit 1027'.
As shown, the spring 1090'has a first end 1092' that is attached or coupled to the distal end 1024' of the outer member 1020'and a distal end 1034' and / or a sealing member 1038 of the inner member 1030'. It has a second end 1094, which is attached to or coupled to the'. As shown, the second end 1094'of the spring 1090'may be attached between the seal member 1038' and the inner member 1030', or may be attached to the seal member 1038', while the seal member 1038'. It still houses the passage 1039 that extends through the'. In an exemplary embodiment, the ends 1092', 1094' of the spring 1090'are made of inner and outer members 1030' by adhesive bonding, ultrasonic welding, melting, tight fitting, one or more connectors (not shown), etc. , 1020'may be attached.
The relative diameters of the spring 1090'and the inner member 1030' may be set to reduce the risk of excessive extension of the spring 1090'. For example, the spring 1090'may be placed under loosening or slight tension when the inner member 1030'is in the proximal position and under greater tension when the inner member 1030' is guided distally. .. When the spring 1090'is placed under greater tension, the diameter of the spring 1090' is reduced, thereby increasing the friction between the spring 1090' and the inner member 1030'. This increase in friction reduces the risk of overextending the spring 1090', allowing the spring 1090' to be elastically deformed or urging the inner member 1030'proximal towards a proximal position. Spring 1090'can prevent.
Referring to FIG. 39, yet another alternative embodiment of device 1010 "similar to device 1010' in FIG. 38 is shown. Device 1010" is similar to device 1010'with outer member 1020 ". It has an inner member 1030 ", a balloon 1050", a sealing member 1038 ", and a spring 1090". The device 1010 "is the same as the devices 1010, 1010', in the first or distal position and the first. It may be operable in the first and second modes by guiding the inner member 1030 "to and from the 2 or proximal position.
Further, the apparatus 1010 "has a spiral member 1070" in a balloon 1050 "which can be expanded to an extended spiral shape, as in other embodiments herein. For example, the spiral member 1070" is on the outside. A first or proximal end (not shown) attached to member 1020 "and a second or distal end 1074" attached to inner member 1030 "adjacent to the distal end 1054" of the balloon 1050 ". Therefore, the device 1010 "guides the inner member 1030" proximally from the second position to the third position where the spiral member 1070 "is compressed in the axial direction and expanded in the radial direction. By doing so, it may be operated in the third mode. The balloon 1050 "may remain folded while the spiral member 1070" is expanded, as in other embodiments herein, or is inflated after the spiral member 1070 "is expanded. It may then be folded.
After the spiral member 1070 "and balloon 1050" are used to remove material in an extended spiral shape, the inner member 1030 "returns the spiral member 1070" to its original contracted shape around the inner member 1030 ". This action may extend the spring 1090 "to open the outlet 1027", however, as mentioned above, the relative size of the spring 1090 "and the inner member 1030" is the spring 1090. It may appear to compress as the "extends and engages the inner member 1030" by friction, whereby the inner member 1030 "is guided distally while the spring 1090" is overextended. Reduce the risk.
The elements or components shown by any embodiment of the specification are exemplary for a particular embodiment and may be used or used in other embodiments disclosed herein. It will be appreciated that it may be used in combination with other embodiments.
While the present invention is capable of accepting various modifications, alternative forms, specific examples thereof, are shown in the drawings and are described in detail herein. However, while the invention is not limited to the particular form or method disclosed, the invention, on the contrary, covers all variants, equivalents, and alternatives within the appended claims. It should be understood to do.
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Every citation, both ways
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| US20050288632A1 | Cites | United States of America |
| EP00778042A2 | Cites | European Patent Office (EPO) |
| JP63192457A | Cites | Japan |
| US04762130A | Cites | United States of America |
93 members in 9 offices
Priority claims24
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Numbers
- Publication
- 5718331
- Publication, DOCDB
- 5718331
- Publication, EPODOC
- JP5718331B
- Application
- 2012521865
- Application, DOCDB
- 2012521865
- Application, EPODOC
- JP20120521865
Titles2
- Japanese
- 体の管腔内の閉塞を処置する装置及び方法
- English
- Devices and methods for treating obstructions in the lumen of the body
Classification
- CPC, 8
- A61M25/104
- A61F2/958
- A61M25/0075
- A61M2025/0681
- A61M2025/105
- A61M2025/1063
- A61M2025/1084
- A61M2025/1093
- IPC, 3
- A61F2 958
- A61M25 10
- A61M39 22
