Hybrid stone retrieval device
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Expired 23 April 2021, 5.4 years ago.
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87 claims: 71 independent, 16 dependent
- 1医療機器であって、該医療機器は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、複数のレッグを含み、該レッグのうちの少なくとも1つが、近位部分および遠位部分、ならびに該近位部分と該遠位部分とを連結する接合部を含み、該近位部分は、第一材料を含有し、該遠位部分は、該第一材料とは異なる第二材料を含有し、 該第二材料は該第一材料より可撓性であり、 該回収アセンブリおよび該鞘は、該回収アセンブリの崩壊位置および該回収アセンブリの他の位置にするために、互いに対して移動可能であり、該崩壊位置では、該回収アセンブリは、該鞘の該管腔内にあり、そして該他の位置では、該回収アセンブリの少なくとも一部は、該鞘の該遠位末端から伸長しており、そして該鞘の該管腔外で三次元形状を呈する、回収アセンブリ、を備える、医療機器。
- 2前記接合部が、ループを含む、請求項1に記載の医療機器。
- 3前記接合部が、フックを含む、請求項1に記載の医療機器。
- 4前記接合部が、クリンプを含む、請求項1に記載の医療機器。
- 5医療機器であって、該医療機器は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、近位部分および遠位部分を含み、該近位部分は、第一材料を含有し、該遠位部分は、 該第一材料とは異なる 第二材料を含有し、該第二材料は、該第一材料よりも可撓性であり、該回収アセンブリおよび該鞘は、該回収アセンブリの崩壊位置および該回収アセンブリの他の位置にするために、互いに対して移動可能であり、該崩壊位置では、該回収アセンブリは、該鞘の該管腔内にあり、そして該他の位置では、該回収アセンブリの少なくとも一部は、該鞘の該遠位末端から伸長しており、そして該鞘の該管腔外で三次元形状を呈する、回収アセンブリ、を備える、医療機器。
- 6前記鞘が移動可能である、請求項5に記載の医療機器。
- 7さらに、細長部材を含み、該細長部材が、前記鞘に対して前記回収アセンブリを移動させるために、該回収アセンブリの近位末端に作動可能に装着されている、請求項5に記載の医療機器。
- 8前記回収アセンブリが、さらに、複数のレッグを含む、請求項5に記載の医療機器。
- 9前記回収アセンブリが、4本のレッグを含む、請求項8に記載の医療機器。
- 10前記 複数の レッグの 1つの 前記近位部分が、第一材料を含み、そして該 複数の レッグの 1つの 前記遠位部分が、 該第一材料とは異なる 第二材料を含む、請求項8に記載の医療機器。
- 11前記第二材料が、前記第一材料よりも可撓性である、請求項10に記載の医療機器。
- 12前記レッグが、さらに、近位部分および遠位部分を含む、請求項8に記載の医療機器。
- 13前記レッグが、前記レッグの前記近位部分と前記遠位部分とを連結する接合部を含む、請求項12に記載の医療機器。
- 14前記接合部が、ループを含む、請求項13に記載の医療機器。
- 15前記接合部が、フックを含む、請求項13に記載の医療機器。
- 16前記接合部が、クリンプを含む、請求項13に記載の医療機器。
- 17前記回収アセンブリの前記近位部分が、レッグを含み、ここで、該近位レッグ部分が、直線状であり、そして前記遠位レッグ部分が、球根状である、請求項12に記載の医療機器。
- 18前記近位レッグ部分が、球根状であり、そして前記遠位レッグ部分が、球根状である、請求項12に記載の医療機器。
- 19医療機器であって、該医療機器は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、複数のレッグを含み、該レッグのうちの少なくとも1つが、近位部分および遠位部分を含み、該近位部分は、第一材料を含有し、該遠位部分は、該第一材料とは異なる第二材料を含有し、 該第二材料は該第一材料より可撓性であり、 該回収アセンブリおよび該鞘は、該回収アセンブリの崩壊位置および該回収アセンブリの他の位置にするために、互いに対して移動可能であり、該崩壊位置では、該回収アセンブリは、該鞘の該管腔内にあり、そして該他の位置では、該回収アセンブリの少なくとも一部は、該鞘の該遠位末端から伸長しており、そして該鞘の該管腔外で三次元形状を呈する、回収アセンブリ、を備える、医療機器。
- 20医療機器であって、該医療機器は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、近位部分および遠位部分、ならびに複数のレッグを含み、該近位部分は、第一材料を含有し、該遠位部分は、該第一材料とは異なる第二材料を含有し、 該第二材料は該第一材料より可撓性であり、 該レッグのうちの1つは、近位部分および遠位部分を含み、該近位レッグ部分が、直線状であり、そして該遠位レッグ部分が、球根状であり、該回収アセンブリおよび該鞘は、該回収アセンブリの崩壊位置および該回収アセンブリの他の位置にするために、互いに対して移動可能であり、該崩壊位置では、該回収アセンブリは、該鞘の該管腔内にあり、そして該他の位置では、該回収アセンブリの少なくとも一部は、該鞘の該遠位末端から伸長しており、そして該鞘の該管腔外で三次元形状を呈する、回収アセンブリ、を備える、医療機器。
- 21医療機器であって、該医療機器は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、近位部分および遠位部分、ならびに複数のレッグを含み、該近位部分は、第一材料を含有し、該遠位部分は、該第一材料とは異なる第二材料を含有し、 該第二材料は該第一材料より可撓性であり、 該レッグのうちの1つは、近位部分および遠位部分を含み、該近位レッグ部分が、球根状であり、そして該遠位レッグ部分が、球根状であり、該回収アセンブリおよび該鞘は、該回収アセンブリの崩壊位置および該回収アセンブリの他の位置にするために、互いに対して移動可能であり、該崩壊位置では、該回収アセンブリは、該鞘の該管腔内にあり、そして該他の位置では、該回収アセンブリの少なくとも一部は、該鞘の該遠位末端から伸長しており、そして該鞘の該管腔外で三次元形状を呈する、回収アセンブリ、を備える、医療機器。
- 22医療回収装置であって、該医療回収装置は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、近位部分および遠位部分を含み、該近位部分は、遠位末端、 第一材料の 複数のストランド、および該回収アセンブリの少なくとも一部が該鞘の遠位末端から該管腔の外へと伸長する場合の三次元形状を含み、該遠位部分は、該近位部分の遠位末端に位置し、そして 該第一材料とは異なる第二材料の 複数のワイヤを含み、各ワイヤは、少なくとも2つのストランドの遠位末端に連結されており、該回収アセンブリの近位部分が該鞘の遠位末端の外に伸長する場合に、該遠位部分は、該回収装置の長軸に対して垂直に伸長し、 該第二材料が該第一材料より可撓性であ る、回収アセンブリ、を備える、医療回収装置。
- 23各ストランドがステンレス鋼を含有する、請求項 22 に記載の医療回収装置。
- 24前記近位部分が剛性材料を含有し、そして前記遠位部分が可撓性材料を含有する、請求項 22 に記載の医療回収装置。
- 25前記複数のワイヤのうちの少なくとも1つが可撓性である、請求項 22 に記載の医療回収装置。
- 26前記近位部分が前記三次元形状を呈する場合に、前記複数のストランドの遠位末端が正方形の領域を規定する、請求項 22 に記載の医療回収装置。
- 27ガイドワイヤをさらに備え、該ガイドワイヤの近位方向への軸方向の動きが、前記回収アセンブリの遠位部分を崩壊させる、請求項 22 に記載の医療回収装置。
- 28前記ガイドワイヤが前記回収アセンブリの遠位部分の中心部分に連結されている、請求項 27 に記載の医療回収装置。
- 29第二ガイドワイヤをさらに備える、請求項 27 に記載の医療回収装置。
- 30前記近位部分が前記三次元形状を呈する場合に、前記複数のストランドの遠位末端が、実質的に円形の領域を規定する、請求項 22 に記載の医療回収装置。
- 31前記鞘を遠位方向に移動させることにより、前記回収アセンブリが前記管腔に入る際に該回収アセンブリが崩壊する、請求項 22 に記載の医療回収装置。
- 32医療回収装置であって、該医療回収装置は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、近位部分および遠位部分を含み、該近位部分は、剛性 第一 材料、遠位末端、複数のストランド、および該回収アセンブリの少なくとも一部が該鞘の遠位末端から該管腔の外へと伸長する場合の三次元形状を含み、該遠位部分は、該近位部分の遠位末端に位置し、 該第一材料とは異なる 可撓性 第二 材料を含み、そして複数のワイヤを含み、各ワイヤは、少なくとも2つのストランドの遠位末端に連結されており、該回収アセンブリの近位部分が該鞘の遠位末端の外に伸長する場合に、該遠位部分は、該回収装置の長軸に対して垂直に伸長する、回収アセンブリ、を備える、医療回収装置。
- 33各ストランドがステンレス鋼を含有する、請求項 32 に記載の医療回収装置。
- 34前記近位部分が前記三次元形状を呈する場合に、前記複数のストランドの遠位末端が正方形の領域を規定する、請求項 32 に記載の医療回収装置。
- 35ガイドワイヤをさらに備え、該ガイドワイヤの近位方向への軸方向の動きが、前記回収アセンブリの遠位部分を崩壊させる、請求項 32 に記載の医療回収装置。
- 36前記ガイドワイヤが前記回収アセンブリの遠位部分の中心部分に連結されている、請求項 35 に記載の医療回収装置。
- 37第二ガイドワイヤをさらに備える、請求項 35 に記載の医療回収装置。
- 38前記鞘を遠位方向に移動させることにより、前記回収アセンブリが前記管腔に入る際に該回収アセンブリが崩壊する、請求項 32 に記載の医療回収装置。
- 39前記近位部分が前記三次元形状を呈する場合に、前記複数のストランドの遠位末端が、実質的に円形の領域を規定する、請求項 32 に記載の医療回収装置。
- 40医療回収装置であって、該医療回収装置は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;および 回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、近位部分および遠位部分を含み、該近位部分は、 第一材料および 遠位末端、複数のストランド、および該回収アセンブリの少なくとも一部が該鞘の遠位末端から該管腔の外へと伸長する場合の三次元形状を含み、該遠位部分は、該近位部分の遠位末端に位置し、そして 該遠位部分は、該第一材料とは異なる第二材料を含み、該第二材料が該第一材料より可撓性であって、 複数のワイヤを含み、各ワイヤは、少なくとも2つのストランドの遠位末端に連結されており、該回収アセンブリの近位部分が該鞘の遠位末端の外に伸長する場合に、該遠位部分は、該回収装置の長軸に対して垂直に伸長する、回収アセンブリ、を備え、 該近位部分が該三次元形状を呈する場合に、該複数のストランドの遠位末端が正方形の領域を規定する、医療回収装置。
- 41各ストランドがステンレス鋼を含有する、請求項 40 に記載の医療回収装置。
- 42前記複数のワイヤのうちの少なくとも1つが可撓性である、請求項 40 に記載の医療回収装置。
- 43ガイドワイヤをさらに備え、該ガイドワイヤの近位方向への軸方向の動きが、前記回収アセンブリの遠位部分を崩壊させる、請求項 40 に記載の医療回収装置。
- 44前記ガイドワイヤが前記回収アセンブリの遠位部分の中心部分に連結されている、請求項 43 に記載の医療回収装置。
- 45第二ガイドワイヤをさらに備える、請求項 43 に記載の医療回収装置。
- 46前記鞘を遠位方向に移動させることにより、前記回収アセンブリが前記管腔に入る際に該回収アセンブリが崩壊する、請求項 40 に記載の医療回収装置。
- 47医療回収装置であって、該医療回収装置は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、近位部分および遠位部分を含み、該近位部分は、 第一材料および 遠位末端、複数のストランド、および該回収アセンブリの少なくとも一部が該鞘の遠位末端から該管腔の外へと伸長する場合の三次元形状を含み、該遠位部分は、該近位部分の遠位末端に位置し、そして 該遠位部分は、該第一材料とは異なる第二材料を含み、該第二材料が該第一材料より可撓性であって、 複数のワイヤを含み、各ワイヤは、少なくとも2つのストランドの遠位末端に連結されており、該回収アセンブリの近位部分が該鞘の遠位末端の外に伸長する場合に、該遠位部分は、該回収装置の長軸に対して垂直に伸長する、回収アセンブリ、ならびに ガイドワイヤであって、該ガイドワイヤの近位方向への軸方向の動きが、該回収アセンブリの遠位部分を崩壊させる、ガイドワイヤ、を備える、医療回収装置。
- 48各ストランドがステンレス鋼を含有する、請求項 47 に記載の医療回収装置。
- 49前記複数のワイヤのうちの少なくとも1つが可撓性である、請求項 47 に記載の医療回収装置。
- 50前記近位部分が前記三次元形状を呈する場合に、前記複数のストランドの遠位末端が正方形の領域を規定する、請求項 47 に記載の医療回収装置。
- 51前記ガイドワイヤが前記回収アセンブリの遠位部分の中心部分に連結されている、請求項 47 に記載の医療回収装置。
- 52前記鞘を遠位方向に移動させることにより、前記回収アセンブリが前記管腔に入る際に該回収アセンブリが崩壊する、請求項 47 に記載の医療回収装置。
- 53前記近位部分が前記三次元形状を呈する場合に、前記複数のストランドの遠位末端が実質的に円形の領域を規定する、請求項 47 に記載の医療回収装置。
- 54第二ガイドワイヤをさらに備える、請求項 47 に記載の医療回収装置。
- 55医療機器であって、該医療機器は、以下:近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、 第一材料および 第一剛性を有する複数のストランドを備える近位部分、および 該第一材料とは異なる第二材料であって、該第一材料より可撓性である第二材料および 第二剛性を有する少なくとも1つのワイヤを備える遠位部分を含み、該少なくとも1つのワイヤは、1つのストランドの遠位末端から他のストランドの遠位末端へと伸長する単一の連続ワイヤであり、該回収アセンブリの遠位部分は、ポケットを形成し、そして該回収アセンブリの遠位末端に位置する頂点を備える、回収アセンブリ;ならびに 細長部材であって、該細長部材の少なくとも一部分が、一緒に編組されたストランドの伸長部から形成されている、細長部材、を備える、医療機器。
- 56医療機器であって、 近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、複数のストランドを備える近位部分、および複数のフィラメントを備える遠位部分を含み、該複数のフィラメントのうちの少なくとも1つは、1つのストランドの遠位末端から他のストランドの遠位末端へと伸長する単一の連続ワイヤであり、該ストランドは、第一材料を含有し、そして該フィラメントは、該第一材料とは異なる第二材料を含有し、 該第二材料は該第一材料より可撓性であり、 そして該回収アセンブリの遠位部分は、ポケットを形成し、そして該回収アセンブリの遠位末端に位置する頂点を備える、回収アセンブリ;ならびに 細長部材であって、該細長部材の少なくとも一部分が、一緒に編組されたストランドの伸長部から形成されている、細長部材、を備える、医療機器。
- 57前記細長部材の近位方向への軸方向の動きが、前記回収アセンブリの遠位部分を崩壊させる、請求項 56 に記載の医療機器。
- 58前記鞘の遠位方向への動きが、前記回収アセンブリが前記管腔に入る際に該回収アセンブリを崩壊させる、請求項 56 に記載の医療機器。
- 59前記第一材料が第一剛性を有し、そして前記第二材料が、該第一剛性とは異なる第二剛性を有する、請求項 56 に記載の医療機器。
- 60前記近位部分の複数のストランドが、互いに対して実質的に平行に伸長している、請求項 56 に記載の医療機器。
- 61前記近位部分の複数のストランドが捻られている、請求項 56 に記載の医療機器。
- 62前記フィラメントがワイヤから作製されている、請求項 56 に記載の医療機器。
- 63前記ワイヤが2つのフィラメントを作製するために使用されている、請求項 62 に記載の医療機器。
- 64前記ワイヤが3つのフィラメントを作製するために使用されている、請求項 62 に記載の医療機器。
- 65前記ワイヤが4つのフィラメントを作製するために使用されている、請求項 62 に記載の医療機器。
- 66医療機器であって、 近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、遠位部 分および近位部分を含み、該近位部分は 該遠位部分の近位の複数のレッグを含み、該複数のレッグは、第一剛性を有する第一材料を含有し、該遠位部分は、該複数のレッグのうちの1つの遠位末端から該複数のレッグのうちの他のものの遠位末端へと伸長する少なくとも1つの単一の連続ワイヤを含み、該ワイヤは、該第一剛性とは異なる第二剛性を有する 該第一材料とは異なる 第二材料を含有し、 該第二材料は該第一材料より可撓性であり、 そして該回収アセンブリの遠位部分は、ポケットを形成し、そして該回収アセンブリの遠位末端に位置する頂点を備える、回収アセンブリ;ならびに 細長部材であって、該細長部材の少なくとも一部分が、一緒に編組されたレッグの伸長部から形成されている、細長部材、を備える、医療機器。
- 67前記近位部分が剛性材料を含有し、そして前記遠位部分が可撓性材料を含有する、請求項 66 に記載の医療機器。
- 68前記遠位部分が複数のワイヤを備える、請求項 66 に記載の医療機器。
- 69前記複数のワイヤの各々が、前記複数のレッグのうちの1つの遠位末端から該複数のレッグのうちの他のものの遠位末端まで伸長する、単一の連続ワイヤである、請求項 68 に記載の医療機器。
- 70前記回収アセンブリが、該回収アセンブリの他の位置を達成するように前記鞘に対して移動可能であり、該他の位置において、該回収アセンブリの少なくとも一部が、該鞘の遠位末端から伸長し、そして該鞘の管腔外で三次元形状を呈する、請求項 66 に記載の医療機器。
- 71前記細長部材が、前記ハンドルから前記回収アセンブリまで、前記管腔内を伸長している、請求項 66 に記載の医療機器。
- 72前記遠位部分が接合部によって前記近位部分に連結されている、請求項 66 に記載の医療機器。
- 73医療機器であって、 近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは 遠位部分および近位部分を含み、該近位部分は第一材料の 複数のレッグを有 し 、 該第一材料とは異なる第二材料の 単一の連続ワイヤが、 該回収アセンブリの遠位部分にある 該複数のレッグのうちの1つの遠位末端から該複数のレッグのうちの他のものの遠位末端へと伸長しており、該複数のレッグの各々は、該単一の連続ワイヤの剛性とは異なる剛性を有し、 該第二材料は該第一材料より可撓性であり、 接合部が、該ワイヤを該複数のレッグのうちの1つの遠位末端に連結しており、そして該回収アセンブリの遠位部分は、ポケットを形成し、そして該回収アセンブリの遠位末端に位置する頂点を備える、回収アセンブリ;ならびに 細長部材であって、該細長部材の少なくとも一部分が、一緒に編組されたレッグの伸長部から形成されている、細長部材、を備える、医療機器。
- 74前記接合部が、ループを含む、請求項 73 に記載の医療機器。
- 75前記接合部が、フックを含む、請求項 73 に記載の医療機器。
- 76前記接合部が、クリンプを含む、請求項 73 に記載の医療機器。
- 77前記複数のレッグの各々が剛性材料を含有し、そして前記単一の連続ワイヤが可撓性材料を含有する、請求項 73 に記載の医療機器。
- 78前記細長部材の近位方向への軸方向の動きが、前記回収アセンブリの遠位部分を崩壊させる、請求項 55 に記載の医療機器。
- 79前記鞘を遠位方向に動かすことにより、前記回収アセンブリが前記管腔に入る際に該回収アセンブリが崩壊する、請求項 55 に記載の医療機器。
- 80前記近位部分の複数のストランドが、互いに対して実質的に平行に伸長している、請求項 55 に記載の医療機器。
- 81前記近位部分の複数のストランドが捻られている、請求項 55 に記載の医療機器。
- 82前記少なくとも1つのワイヤが、互いに対して隣接して配置されている第一のワイヤおよび第二のワイヤを備える、請求項 55 に記載の医療機器。
- 83前記第一のワイヤの遠位末端が、前記第二のワイヤによって形成されたループを通過しない、請求項 82 に記載の医療機器。
- 84前記第一のワイヤの遠位末端が前記第二のワイヤと連動しない、請求項 82 に記載の医療機器。
- 85医療機器であって、 近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;ならびに 回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、 第一材料および 複数のストランドを備える近位部分、および 該第一材料とは異なる第二材料であって、該第一材料より可撓性である第二材料および 少なくとも1つの単一の連続ワイヤを備える遠位部分を含み、該単一の連続ワイヤは、該1つのストランドの遠位末端から該他のストランドの遠位末端へと伸長しており、該複数のストランドの近位部分は、一緒に捻られており、そして該回収アセンブリの遠位部分は、ポケットを形成し、そして該回収アセンブリの遠位末端に位置する頂点を備える、回収アセンブリ、を備える、医療機器。
- 86医療機器であって、 近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;ならびに 回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、 第一材料および 複数のストランドを備える近位部分、ならびに 該第一材料とは異なる第二材料であって、該第一材料より可撓性である第二材料および 第一の単一の連続ワイヤおよび第二の単一の連続ワイヤを備える遠位部分を含み、該第一の連続ワイヤは、1つのストランドの遠位末端から他のストランドの遠位末端へと伸長しており、該第二の連続ワイヤは、1つのストランドの遠位末端から他のストランドの遠位末端へと伸長しており、該第一のワイヤの遠位末端は、該第二のワイヤによって形成されるループを通過しない、回収アセンブリ、を備える、医療機器。
- 87医療機器であって、 近位ハンドル;鞘であって、該鞘は、該ハンドルから伸長しており、管腔を含み、そして該ハンドルから離れた遠位末端を含む、鞘;ならびに 回収アセンブリであって、該回収アセンブリは、該管腔内での該回収アセンブリの崩壊位置にするように、該鞘に対して移動可能であり、該回収アセンブリは、 複数のストランドを備える 第一材料の 近位部分であって、該複数のストランドの各々は、遠位部分および近位部分を備え、そして該複数のストランドの近位部分は、一緒に編組されている、近位部分、ならびに 該第一材料とは異なる第二材料の遠位部分であって、該第二材料は該第一材料より可撓性であり、該遠位部分は 少なくとも2つの別々の単一の連続ワイヤを備 え 、該単一の連続ワイヤの各々は、1つのストランドの遠位末端から他のストランドの遠位末端へと伸長しており、該少なくとも2つの別々の単一の連続ワイヤの遠位末端のいずれも、該少なくとも2つの別々の単一の連続ワイヤの他のものによって形成されるループを通過しない、遠位部分、 を備える回収アセンブリ、を備える、医療機器。
Independent claims87
1 paragraph, as filed
[0001] (Cross-reference of related applications) This application is a partial continuation of US Pat. No. 09 / 369,226 filed on August 6, 1999 and a partial continuation of US Pat. No. 08 / 968,906 filed on November 5, 1997. The latter application is a continuation of US Pat. No. 08 / 822,207 (abandoned) filed March 20, 1997, which is US Pat. No. 08 filed February 2, 1995. / 382,778 (abandoned) continuation application. The contents of each of these applications are incorporated herein by reference. [0002] (Technical field) The present invention generally relates to medical devices such as recovery devices that recover substances from the body, for example. More specifically, the present invention relates to a recovery device that captures and recovers stones (eg, urinary stones, gallstones, and other biological material derived from the body tract). [0003] (Background information) Medical recovery devices are generally used to recover foreign bodies, including stones, from the body. Such medical recovery devices can be used through an endoscope or laparoscope. [0004] One of the known medical recovery devices has a sheath and a recovery assembly (eg, a basket that can be moved in and out of this sheath). When in the sheath, this basket presents with a collapsed and reduced diameter profile. When the pod is retracted relative to the basket or the basket moves beyond the end of the pod, the basket expands to a diameter that is relatively larger than when the basket is encapsulated within the pod. Generally, the contours of known baskets are round or oval and are formed by a plurality of legs. [0005] With many known recovery devices, this recovery assembly uses materials that increase its rigidity. However, rigid materials that increase strength increase strength at the expense of flexibility. This recovery assembly, on the one hand, must be strong enough to dilate the body path, and on the other hand, sufficient to pass through the body path with small diameter meandering passages and irregular cavities. Must be flexible. In addition, flexible recovery assemblies can more easily capture large stones due to the gaps in the legs of the recovery assembly than rigid recovery assemblies. When flexible materials are used in this recovery assembly, however, rigidity and strength are reduced. [0006] (Gist of the invention) An object of the present invention is to provide a medical device, that is, a medical recovery device having a function of enabling recovery of a substance in the body. This substance can be either a biological substance (eg, a stone), or a foreign body, or any other type of substance in the body. This substance can be located in the urinary tract or bile ducts or elsewhere in the body. [0007] The medical device according to the invention is used to treat internal organs containing substances such as stones or thromboembolisms. The medical device typically includes a proximal handle, a sheath, and a recovery assembly (eg, a basket), the sheath extending from the handle, including a lumen, and away from the handle. Includes proximal end. The recovery assembly includes a proximal portion and a distal portion. The proximal portion contains a first material, and the distal portion contains a different second material. [0008] The recovery assembly and the sheath are movable relative to each other in order to bring the recovery assembly into a collapse position and other positions, at which the recovery assembly is within the lumen of the sheath. And at the other positions, at least part of the recovery assembly extends from the distal end of the sheath. In this position, the recovery assembly exhibits a three-dimensional shape from the lumen of the sheath. [0009] In one embodiment, the recovery assembly is a basket. The basket has a plurality of legs, for example, the basket has three, four, five or more legs. The legs can be preformed. [0010] In one embodiment of the invention, the legs of the recovery assembly are characterized by proximal and distal portions. The proximal portion of the leg comprises a first material, and the distal portion of the leg comprises a second material, the second material being more flexible than the first material. In this embodiment, the proximal leg portion and the distal leg portion are connected at a junction. The joint is any other mechanism known for looping, hooking, crimping, soldering, welding, or connecting the ends of at least one wire or leg. [0011] In another embodiment of the medical recovery device of the present invention, the proximal portion of the recovery assembly is generally linear; the contour of the proximal portion is planar rather than curved. Alternatively, at least the proximal portion of the recovery assembly is bulbous, i.e., the proximal portion of the recovery device when the proximal portion extends beyond the distal end of the sheath. It is bent from the center. [0012] Another embodiment of the invention includes a sheath that is axially movable relative to the recovery assembly. In this embodiment, retracting the sheath away from the distal end of the sheath extends the recovery assembly from the distal end of the sheath. A portion of the recovery assembly is thereby expanded depending on which portion is exposed by the retracted sheath. [0013] Some additional embodiments of the invention include an elongated guide member that is located longitudinally within the lumen of the sheath and operably attached to the proximal end of the recovery assembly. And activated by at least one actuating member on the handle. When the elongated guide members are moved axially to each other, the recovery assembly moves in and out of the distal end of the sheath from its closed position in the sheath and back to its closed position in the sheath. .. As the assembly moves in and out of the sheath, part of the recovery assembly shifts between the collapse position and the open position. [0014] In yet another aspect, the invention relates to a method of recovering a substance from the body. The method involves inserting a medical recovery device (eg, device) with a recovery assembly into the body; extending the proximal and distal ends of the recovery assembly beyond the ends of the sheath. Steps; Manipulating the recovery assembly around the material; Capturing the material in the recovery assembly; Pulling the proximal and distal ends of the recovery assembly back into the sheath; and It includes a step of removing the medical device and the substance captured by the recovery assembly from the body. [0015] (Description) Each of the following embodiments of the medical recovery device according to the present invention has at least the following characteristics. The recovery assembly of this medical recovery device is manufactured from rigid and flexible materials. The proximal end of this recovery assembly is made of a material that is more rigid than the material used in other parts of the recovery assembly. Materials used in parts of this recovery assembly other than the proximal portion increase the flexibility of those parts as compared to the flexibility of the proximal portion of the recovery assembly. [0016] In general, in one aspect, the invention features a medical recovery device that includes a handle, sheath and recovery assembly. As illustrated in FIG. 1, the medical recovery device 10 includes a handle 11 at the proximal end 12, which has a handle base 13 and an actuating mechanism 14 (eg, a slider). The doctor can grasp the handle base 13 with the palm of his hand and operate the actuating mechanism 14 with his fingers. The recovery assembly 15 formed according to the present invention is located at the distal end 16 (farthest end from the surgeon) of the medical recovery device 10. The recovery assembly 15 according to the invention may have a number of different embodiments, one of which is illustrated in FIG. 1 and will be described in more detail below. The sheath 17 lies between the handle 11 and the recovery assembly 15 on an intermediate support structure (eg, elongated member 40). Sheath 17 typically includes a polyimide tube or a tube made from other materials that exhibit radial flexibility, axial rigidity and biocompatibility. [0017] The outer diameter of the sheath 17 ranges from 1.7 to 8.0 French (Fr.), preferably 3.0. Can be Fr. Recovery assembly 15 is a type that can collapse within sheath 17 for entry into the body. The handles 11, sheath 17 and recovery assembly 15 illustrated in FIG. 1 are not shown in their correct size or in proportion to each other. The size of the entire pod is sized to meet the requirements for applying the pod 17 inside the body. For example, for urinary application, the size of this device is typically 1.7-8.0 Fr. Sheath 17 has at least one lumen 9 therein and can be made from a single material and extends from handle 11 to distal sheath end 18. The elongate 40 (eg, cable, coil, shaft, guidewire or mandrill) extends within the lumen 9 from the device handle 11 of the recovery assembly 15 to the base 30, in which case the elongate 40 extends away from it. At the end of the position, it is attached to the recovery assembly 15. [0018] The elongated member 40 is operably joined to one or more actuating mechanisms 14 at the device handle 11. Referring to FIG. 1, when the actuating mechanism 14 is located at position 14C, the recovery assembly 15 extends beyond the distal end 18 of the sheath 17 and is complete, as illustrated in FIG. Open to. As the actuating mechanism 14 moves to position 14b, the recovery assembly 15 moves to the position depicted in FIG. When the actuating mechanism 14 moves to position 14a, the recovery assembly is clustered at the sheath 17, which is within the lumen 9 of the sheath 17, as depicted in FIG. 4A. Cover 15. [0019] Alternatively, in another embodiment, the mechanism 14 advances the sheath 17 onto the combination of the fixed recovery assembly 15 and the elongated member 40 by the movement of the sheath 17, thereby moving the recovery assembly 15 within the sheath 17. Can collapse. In this embodiment, as shown in FIG. 1, as the actuating mechanism advances from the distal portion 14a to the intermediate position 14b as depicted in the illusion, the sheath 17 moves from the position depicted in FIG. 2 to FIG. Advance to the position indicated by. As this actuating mechanism advances further to position 14c, the sheath 17 densely covers the recovery assembly 15, as shown in FIG. 4A. [0020] In general, both types of recovery assembly / sheath movement shapes and associated handle mechanisms are known and, for example, Boston Scientific. Visible in existing product designs available from Corporation (Natick, MA). The recovery assembly 15 is disassembled within the sheath 17 as shown in FIG. 4A, and the sheath 17 can be inserted into the body by the surgeon up to where the material to be recovered is located (eg, a stone in the urinary tract). By placing the recovery assembly 15 in its open / enlarged position, as illustrated in FIG. 2, the recovery assembly 15 can be placed and operated by the surgeon to capture or capture material within the recovery assembly 15. Expand the body path. [0021] [0021] Generally, in one aspect, with reference to FIG. 2, the recovery assembly 15 is a basket formed by a plurality of legs 21. The number of legs can be on the order of 2 to 20. In this aspect of the invention, the recovery assembly 15 can be divided into a plurality of basket portions (eg, proximal basket portion 22 and distal basket portion 24). Leg 21 of this basket also has a proximal leg portion 26 and a distal leg portion 28. The proximal leg portion 26 is located within the proximal basket portion 22 and the distal leg portion 28 is located within the distal basket portion 24. The proximal end of the proximal leg portion 26 is joined to an elongated member 40 arranged axially within the lumen 9 of the sheath 17. [0022] Generally, the proximal leg portion 26 and the distal leg portion 28 of each leg 21 are made of different materials. The proximal leg portion 26 is formed of a first material, which is more rigid than the second material used in the distal leg portion 28. For example, the proximal leg portion 26 is made of stainless steel, and the distal leg portion 28 is nitinol silk, nylon and other shape memory materials (eg nickel-titanium, nickel-titanium-copper and nickel-titanium-). Formed from lead). Other combinations of materials are also considered in the present invention as long as the strands of the proximal leg portion 26 are stiffer than the filaments of the distal leg portion 28. [0023] The recovery assembly, which includes a rigid proximal part and a relatively flexible distal part, is strong enough to dilate the body path and flexible enough to trap stones or other substances in the body path. It has the advantage of giving both sex. The strands of the proximal leg portion 26 facilitate the trapping of stones or other substances. The gap between the strands in the proximal basket portion 22 is relatively wider than the gap between the filaments in the distal basket portion 24. In addition, the flexibility of the distal basket portion 24 makes it possible to catch stones with a diameter greater than the width of the gap between the legs 21. The filament in the distal leg portion 28 bends to allow large stones to pass through the gap between the legs 21 in the distal basket portion 24. After capturing the stone, it is captured in the distal basket portion 24 of the recovery assembly 15 (where the gap between the filaments of the distal leg portion 28 is relatively narrow). [0024] The flexible distal basket portion 24 of the recovery assembly 15 captures the stone when it is located distal to the recovery assembly 15 or laterally from the distal basket portion 24 of the recovery assembly 15. Increase ease of use. The rigid distal basket portion 22 of the recovery assembly 15 has the strength to dilate the body path, whereas the flexible filament of the distal basket portion 24 allows stones to be trapped through the gaps between the filaments. Has the flexibility to bend away. The stone can enter through the distal portion of the basket via the distal end 23 of the recovery assembly or through the sides of the distal basket portion 24 of the recovery assembly 15. Compared to the rigid recovery assembly, the flexible distal basket portion 24 of the recovery assembly 15 also minimizes possible damage to the body path when the recovery device expands in the body path. [0025] The filaments at the distal leg portion 28 make up separate wires, or these filaments are made from one wire or more than one wire, which is a solid wire, twisted wire or braid. At the proximal leg portion 26 containing the wire, it is attached to the distal end 32 of the strand. The number of filaments in the distal leg portion 28 attached to the distal end 32 of the strand in the proximal leg portion 26 is at least one, preferably about 2-10. [0026] The connection at the junction 27 between the filament at the proximal end 33 of the distal leg portion 28 and the distal end 32 of the strand at the proximal leg portion 26 is achieved by many means. For example, as shown in FIGS. 5A and 5B, the filament at the proximal end 33 of the distal leg portion 27 is crimped at the junction 27 to the distal end 32 of the strand at the proximal leg portion 26. Or, as illustrated in FIGS. 6A and 6B, the two filaments at the distal leg portion 28 have a hole 34 located at the distal end 32 of the strand at the proximal leg portion 26. Formed from a single wire that passes through. Alternatively, one or more filaments at the distal leg portion 28 are located at the distal end 32 of the strand at the proximal leg portion 26, as illustrated in FIGS. 7A and 7B, 8A and 8B. Through a partially closed loop or hook 36. Other mechanisms for joining filaments at the proximal end 33 of the distal leg portion 28 to these strands include soldering, welding, knots or adhesives. The number of filaments in the distal leg portion 28 shown in FIGS. 5A and 5B to 8A and 8B is an example and is not intended to be limited to the illustrated embodiments. The ratio of strands to filaments is equal to or less than one. [0027] In certain embodiments, with reference to FIGS. 2-9 and 14-17, the proximal leg portion 26 of the leg 21 of the recovery assembly 15 according to the invention is characterized by a strand of material. The distal leg portion 28 of the leg 21 is characterized by multiple filaments, which extend distally from each of the strands of the proximal leg portion 26 to the distal end 23 of the recovery assembly. In one embodiment illustrated in FIG. 2, for example, the distal ends of the filaments at the distal leg portion 28 are bundled together at the end cap 25. The cap 25 captures the distal ends of all filaments in the distal leg portion 28 at the cap 25, either by swaging or by some other means of forming the distal end 23 of the basket 15. [0028] In one embodiment, the individual strands of the proximal leg portion 26 are pre-stressed or preformed. As a result, the strands in the proximal portion 22 of the recovery assembly 15 branch off from each other as they extend distally, without restraint by the sheath 17. The filament of the distal leg portion 28 is preformed from the end of the strand at the proximal leg portion 26 to follow a linear or spiral path and concentrates on the distal end 23 of this recovery assembly, thereby the basket 15 Defines the distal leg portion 28 of. [0029] FIG. 4A illustrates the strands at the proximal leg portion 26 extending approximately parallel to each other, whereas the strands at the proximal leg portion 26 still retain a dense cross section. It turns out that it can be intertwined or twisted. The strands at the proximal leg portion 26 of the proximal portion 22 of the recovery assembly 15 are preformed to follow the spiral path between the base 30 of the recovery assembly 15 and the distal portion 24 of the recovery assembly 15. Or stress can be applied. In addition, as shown in FIG. 4B, the strands at the proximal leg portion 26 can be varied at the sheath 17 to a length that facilitates the collapse of the recovery assembly 15. In any of these configurations, the distal end 23 of the recovery assembly 15 remains radially flexible by the sheath 17 and is axially rigid to facilitate placement of the recovery device 10. is there. [0030] At least one wire is used to make the filament of the distal leg portion 28 at the distal portion 24 of the recovery assembly 15. For example, as shown in FIG. 9, one wire is used to make the two filaments of the distal leg portion 28. One portion of these wires passes through the junction 27 at the distal portion 32 of the strand of the proximal leg portion 26, in the manner illustrated in FIGS. 6A and 6B. Both ends of this one wire are attached to the distal end cap 25. The joint 27 can take any of the above shapes (eg, holes, hooks or crimps). [0031] Alternatively, one wire is used to make three, four or more filaments of the distal leg portion 28. As shown in FIG. 10A, in the embodiment of four filaments with one wire, the one wire is passed multiple times between the junction 27 and the distal end 23 of the recovery assembly 15. .. It is possible to have any combination of wires to form these filaments, for example, at least one wire forms at least two filaments, and two additional wires are two. Forming additional filaments, all four filaments extend from the distal end 32 of the single strand to form the distal leg portion 28 of the single leg 21. [0032] In another embodiment illustrated in FIG. 10B, the same wire may be used for filament 28a on leg 21a and filament 28b on leg 21b. This wire passes through the junction 27a at the distal end 32 of the strand of the proximal leg portion 26a, then distally to the distal end 23 of the recovery assembly 15, and then of the strand of the proximal leg portion 26b. Proximal to junction 27b at distal end 32. In one embodiment, as illustrated in FIG. 10C, these filaments are not attached together or attached to the end cap at the distal end 23. In this embodiment, the recovery assembly 15 reassembles an egg whip. Alternatively, an end cap can be used to collect these filaments together at the distal end 23 of the recovery assembly 15 illustrated in FIG. [0033] In yet another embodiment of the invention illustrated in FIG. 11, the strand at the proximal leg portion 26 of the recovery assembly 15 is an extension of an elongated member 40 or a twisted or braided strand that forms a cable. Alternatively, the proximal end of the strand in this proximal leg portion may be attached to the elongated member 40 by any means (eg, insertion with a short cannula, crimping, soldering, welding, aging, or use of adhesive). It is installed. [0034] In the clinical application of one embodiment, the surgeon uses a recovery device with its distal tip 23 of recovery assembly 15 in the shape shown in FIG. 4A so that the sheath 17 holds the recovery basket 15 in its compact shape. Introduce 10. When positioning the distal tip 23 of the recovery assembly 15 proximally from a stone or any other substance to be recovered, the surgeon moves the actuating mechanism 14 from position 14C to position 14A in FIG. This causes the sheath 17 to retract, exposing the proximal and distal parts 24 of the recovery assembly 15. The leg 21 returns to its initial shape as shown in FIG. 2, thereby providing a structure that can be manipulated to extend the surrounding tissue and capture stones within the range of the recovery assembly 15. Preferably, the distal tip 23 of the recovery assembly 15 is adjacent to or closer to the material to be recovered by the recovery assembly 15 so as to facilitate and accelerate the capture of the substance within the recovery assembly 15. Positioned distal to the substance prior to its movement. [0035] Using the present invention, the surgeon can manipulate the recovery assembly 15 so that stones or other material move between filaments at the distal leg portion 28 or between strands at the proximal leg portion 26. The small number of strands in the proximal portion 22 of the recovery assembly 15 makes this task much easier and easier. [0036] FIG. 9 illustrates an alternative embodiment of the recovery basket 15a and sheath 17a located at the distal end 16a of the recovery device 10a. In this particular embodiment, the recovery assembly 15a has four legs 21a. Each of the legs 21a is in the form of an individual strand and has a proximal portion 26a. Each distal portion 28a of the leg 21a has two filaments, which extend from the distal end 32 of the appendages of the individual strands at the proximal leg portion 26a to the cap 25a for recovery. It defines the distal portion 24 of assembly 15a. The cap 25a captures all ends of the filament at the distal leg portion 28a and defines the distal tip 23 of the recovery assembly 15a. In this particular embodiment, each of the strands of the proximal leg portion 26a is spaced at an angle of about 90 ° from the adjacent strand, whereas the filament of the distal leg portion 28a It is wound in a spiral and is spaced at an angle of about 45 °. [0037] According to the present invention, the proximal portion 22 and the distal portion 24 of the recovery assembly 15 are disintegrated within the sheath 17 in the first position. When the distal portion 24 of the recovery assembly 15 extends beyond the end 18 of the sheath 17, the distal portion 24 of the recovery assembly 15 expands to a second position. The recovery assembly 15 is in the third position when the proximal portion 22 and the distal portion 24 of the recovery assembly 15 extend and expand beyond the distal end 18 of the sheath 17. Positions 1 to 3 of the recovery assembly 15 are positions along a continuum from the completely collapsed recovery assembly position to the fully expanded recovery assembly position. [0038] The contour of the recovery assembly 15 of the present invention can take various shapes. For example, reference to FIGS. 12A and 12B shows alternative embodiments of a recovery assembly or basket 15. As shown in FIG. 12A, the basket leg 21 of the distal basket portion 24 is convex, i.e. the leg 21 bends arched from its central axis of the basket. In this embodiment, the distal basket portion 24 exhibits a bulb shape as the basket moves from the first position to the second position. As the basket 15 extends further from the end 18 of the sheath 17, the proximal basket portion 22 expands as the basket 15 moves from the second position to the third position, as illustrated in FIG. 12B. Extends from the end of. The overall basket contour is peanut-shaped. [0039] The basket leg 21 of the basket 15 shown in FIGS. 12A and 12B can be preformed or bent prior to assembling the basket 15. Leg 21 can be bent in any manner known to those of skill in the art, as detailed, for example, in US Pat. No. 5,658,296, the entire contents of which are incorporated herein by reference. Can be done. [0040] In another embodiment shown in FIG. 13, the leg 21 of the proximal portion 22 of the basket 15 is substantially linear. As this basket extends from the distal end 18 of the sheath (not shown), the distal basket portion 24 expands and the basket has a bulb shape, as shown in FIG. 13, second position (internal image). Present. As the basket extends further from the distal end of the pod, the proximal portion 22 of the basket expands. As shown in the third position (other images) of FIG. 13, the overall contour of the basket 15 at the third position is conical. The diameter of the proximal basket portion 22 increases uniformly from the proximal end to the distal end of the proximal basket portion 22. [0041] In another embodiment of the invention, the contour of the distal basket portion 28 is spiral. For example, as illustrated in FIG. 9, the distal portion 24 of this basket is composed of a plurality of helical filaments extending from each of the strands of the distal leg portion 26 of each leg 21. The spiral filament 28 can be paired. These filaments may resemble the set of filaments disclosed in US Pat. No. 5,496,330, and the entire contents of US Pat. No. 5,496,330 are incorporated herein by reference. As the distal basket portion 24 extends beyond the end 18 of the sheath 17, the distal basket portion 24 expands substantially into a spiral shape. The basket 20 becomes longer and larger as the proximal basket portion 22 extends from the end 18 of the sheath 17, and the basket 20 exhibits the third basket position illustrated in FIG. [0042] The use of multiple filaments in the distal portion 28 of the leg 21 increases the number of points of contact between the recovery assembly 15 and any stone captured. For example, in FIG. 9, the eight filaments in the distal basket portion 24 contact the stone rather than the four filaments. In addition, on a given leg, the adjacent filaments are spaced close to equiangular, and the wires can collectively adapt to the irregularities on any surface of such a stone surface, and the basket 15 Further increase the reliability of catching stones. [0043] FIG. 14 depicts the proximal portion 22b and the distal portion 24b of the recovery assembly 15b located at the distal end of another embodiment of the recovery device 10b. By recovering the sheath 17b at the distal end of this recovery device to the location shown, the proximal end 22b and the distal end 24b are joined to the cap 25b and the recovery assembly base 30 (which is joined to the elongated member 40b). An enlarged recovery assembly 15b that extends with (is) can be formed. The two legs 21 define the recovery assembly 15b, and each of these legs has an individual strand 26b (which extends distally from the proximal end of this basket) and six filaments 28b. (These extend proximally from the distal end 23 of this basket to the distal end 32 of the accompanying strand 26b). The filament 28b in this case is pre-stressed to follow a spiral path. The filament 28b is joined to the strand 26b at the junction 27 by any of the junctions illustrated in FIGS. 5A and 5B to 8A and 8B. [0044] FIGS. 15-17 illustrate other recovery device embodiments made in accordance with the present invention. The recovery assemblies 15c, 15d and 15e of the recovery devices 10c, 10d and 10e include multiple legs 21 and each of the legs 21 is at the distal leg portion 28 of the recovery assembly 15 from the strand at the proximal leg portion 26. Also has substantially many filaments. For example, each of the legs 21c of the basket 15c of FIG. 15 contains a strand at the proximal leg portion 26c and also contains 5 filaments at the distal leg portion 28c, whereas 3 of the basket 15d of FIG. Each of the book legs 21d contains a strand at the proximal leg portion 26d and contains three filaments at the distal leg portion 28d. The four legs 21d define the recovery assembly 15e of FIG. Each leg 21e contains an individual strand at the proximal leg portion 26e and contains four filaments at the distal leg portion 28e. Each of the filaments in the recovery assemblies 15c, 15d and 15e is pre-stressed but not spirally wound like the filaments in baskets 15a and 15b of FIGS. 9 and 14. For example, in FIG. 17, each of the filaments in the distal leg portion 28e between one of the strands in the proximal leg portion 26e and the cap 25e is pre-stressed away from the axis of the recovery assembly 15e. It extends radially and is spaced apart from each of the other filaments. [0045] The basket 15, described in relation to FIGS. 2, 9 and 14-17, may also be formed by the method described in US Pat. No. 5,658,296, which was pending at the time of filing the application and assigned to the applicant of the present application. The methods described herein provide strands and filaments with improved strength, durability and other properties. [0046] In another aspect of the invention, with reference to FIG. 18, the recovery assembly has the characteristics of multiple legs 21. The leg 21 contains a strand located in the proximal portion 22 of the recovery assembly 15. The strands of the proximal portion 22 of this recovery assembly are made of a rigid material (eg, stainless steel). The proximal portion of this recovery assembly is characterized by a flat proximal end 23, which is located at the distal end 32 of the strand of the proximal leg portion 26 of the recovery assembly 15. The distal end 23 includes a plurality of flexible wires 29, which are oriented in a plane substantially perpendicular to the major axis of the recovery device 10. At least one of the wires 29 at the distal end 23 is made of a material that is more flexible than the material containing the strands of the proximal basket portion 22. The wire 29 containing the distal end 23 of the recovery assembly 15 is far from the distal end 32 of one strand of the proximal basket portion 22 to the distal end 32 of the adjacent strand or the other strand of the proximal basket portion 22. It extends to the terminal 32. The number of legs or strands in the proximal basket portion 22 can be 3, 5, 6, 7, 8, or more, and is not limited to the number of strands shown. [0047] As illustrated in FIGS. 18B and 18C, in one embodiment of this aspect of the invention, the distal end 23 of the recovery assembly 15 is adjacent to the distal end 32 of one strand of the proximal portion of the recovery assembly 22. Includes at least one wire 29 extending to the distal end 32 of the strand, or the distal end of the other strand of the proximal leg portion across the region defined by the distal end 32 of these strands. Includes at least one wire 29 extending to 32. Any pattern of wire extending from the end 32 of one strand to the end 32 of the other strand is considered in the present invention. The wire 29 at the distal end 23 of the recovery assembly 15 may form a pattern other than the pattern illustrated in FIGS. 18B and 18C. [0048] In clinical use, the device 10 illustrated in FIG. 18A is inserted into the body tract and its recovery assembly is disintegrated within the sheath 17. The distal end 18 of this pod passes through or is positioned adjacent to the stone or other substance to be recovered. Recovery assembly 15 and sheath 17 are moved relative to each other to extend and open recovery assembly 15 beyond the distal end of sheath 18. The gap or distance between the basket legs 21 is thereby increased. The distal end 23 of the basket 15 is maneuverable, primarily due to the flexible material used to manufacture the distal end 23. The proximal portion 22 of this recovery assembly is relatively rigid as the proximal portion 22 is made of a material that is more rigid than the material used at the distal end 23. Therefore, the proximal portion 22 has the strength to dilate the body path around this stone or other material, and the distal basket portion 24 captures the stone or other material in the recovery assembly 15. Has flexibility. To capture a stone or other substance, the stone passes between the gaps in the strands of the distal portion 22 of the recovery assembly 15 and is far from the strands of the proximal portion 22 of the recovery assembly 15 and the strands of the recovery assembly 15. Captured in the region between the terminal 23. [0049] In an alternative embodiment of this aspect of the invention illustrated in FIGS. 18D-18G, the second elongated guide wire 41 is parallel to or extends through the lumen in the first guide wire 40 and is distal thereof. At the end, it is joined to the distal end 23 of the recovery assembly 15, and at its proximal end, it is joined to the second actuator 42. To capture substance 60 in the body tract, recovery assembly 15 often opens and extends beyond the distal end of sheath 17, as illustrated in FIG. 18E. The calculus 60 is closer to the recovery assembly 15 and is captured between the recovery assembly 15 and the body tissue 44. As shown in FIG. 18F, the second actuator 42 is moved proximally in the direction of the arrow to move the second elongated guide wire 41 proximally in the axial direction. The distal end 23 of the recovery assembly 15 is thereby moved towards the distal end of the sheath 17 and collapses the recovery assembly 15 around the calculus 60. The actuator 14, illustrated in FIG. 18G, is then moved proximally in the direction of the arrow to partially or completely pull the recovery assembly 15 along with the captured stone 60 to the distal end of the sheath. [0050] In another aspect of the invention, in one embodiment, the recovery assembly 15 illustrated in FIGS. 19A and 19B has a proximal portion 22 and a distal portion 24. The proximal portion 22 of this recovery assembly also has a plurality of legs 21. The distal portion 24 of the recovery assembly 15 is pocket-shaped, which has an apex 38 and a pocket edge 39, which is joined to the end 32 of leg 21 of the proximal basket portion 22. The proximal portion 22 of the recovery assembly 15 is made of a different material than the distal portion 24 of this recovery assembly. [0051] The legs 21 of the proximal portion 22 of this recovery assembly are made of rigid material (eg, stainless steel) and are attached to the elongated member 40 at their proximal end and at their distal end 32 this. It is attached to the pocket edge 39 of the pocket at the distal portion 24 of the recovery assembly. The legs 21 at their distal ends 32 are attached to the pocket edge 39 by sutures, adhesives, loops, hooks or any other joining means known to those of skill in the art. [0052] The pocket-shaped distal portion 24 of the recovery assembly 15 is a net or mesh made of a flexible material such as nitinol. The openings in this mesh are large enough to allow fluid to pass through, but small enough to prevent stone-like material larger than 0.1 mm from passing through the mesh. [0053] The mesh of the distal portion 24 of the recovery assembly 15 forms a pocket. In one embodiment, the pocket apex 38 with the distal portion 24 is located at the distal end 23 of the recovery assembly 15. In this embodiment, the recovery assembly is used to "net catch" or "sweep and collect" material in the body tract. As shown in FIGS. 20A-20C, the recovery device 10 is inserted into the body tract and the recovery assembly 15 is disintegrated within the sheath 17 as shown in FIG. 20A. When the distal end 18 of the sheath 17 is advanced past the stone 60 or other material to be removed, the recovery assembly 15 extends beyond the distal end of this sheath, as illustrated in FIG. 20B. Will be done. Positioning the recovery assembly 15 beyond the distal end of this pod, the recovery assembly 15 is manipulated around the calculus 60 and is a pocket formed in the distal portion 24 of this recovery assembly, as illustrated in FIG. 20C. Capture 60 stones in. [0054] In another embodiment of this aspect of the invention illustrated in FIGS. 21A-21C, the apex 38 of the pocket at the distal portion 24 of the recovery assembly 15 is from the end 32 of the leg 21 of the proximal portion 22 of the recovery assembly 15. It is located proximally. In this embodiment, the pockets of the distal portion 24 of this recovery assembly are used to "scoop" stones or other substances in the body tract. The medical recovery device is inserted into the body tract and the recovery assembly 15 collapses within the sheath 17, as illustrated in FIG. 21A. When the distal end 18 of the sheath 17 approaches the stone 60 or other material to be removed, the recovery assembly 15 is moved to the position illustrated in FIG. 21B. Positioning this recovery assembly as shown in FIG. 21B, the recovery assembly 15 is advanced over the stone 60 and, as shown in Figure 21C, in the pocket of the distal portion 24 of the recovery assembly 15, the stone. Capture 60. [0055] Other embodiments of the invention illustrated in FIGS. 19A-19B, 20A-20C and 21A-21C are illustrated in FIGS. 22A and 22B. In this embodiment, the second elongated guide wire 41 is parallel to or passes through the axially arranged lumen of the guide wire 40 (see FIGS. 18D-18G for comparison) and is far away from the recovery assembly 15. It is attached distally to the mesh of the terminal portion 24. The proximal end of the second guide wire 41 is operably joined to the second actuator 42 at its proximal end in the manner illustrated in FIG. 18D. The axial movement of the guide wire 41 causes the recovery assembly 15 to move from the repeated position shown in FIG. 22A to the inverted position shown in FIG. 22B. Therefore, the first actuator 14 is operably mounted on the guide wire 40 and the second actuator 42 is operably mounted on the guide wire 41, illustrated in FIGS. 19A-19B, 20A-20C, 21A-21C. The medical recovery assembly 15 of the recovery device 10 can be steered to capture material in the body path, as illustrated in FIGS. 18E-18G and discussed in the corresponding textbooks. [0056] In general, the medical recovery device according to the present invention can be used in clinical applications for recovering biological substances or foreign substances from the body. For example, this device can be used to collect stones (eg, stones in the gallbladder, biliary tree, ureter, kidney, bladder, urethra, etc.). This device can also be used to capture thrombi or embolisms within blood vessels (eg, the coronary blood vessels of the heart or the pulmonary vasculature). Regardless of the material to be recovered, the device 10 with the recovery assembly 15 and enclosed within the sheath 17 is inserted into the body tract. The distal end 18 of this pod approaches the calculus 60 or passes one side of the calculus 60 and its recovery assembly is moved relative to the pod 17 and extended beyond the distal end 15 of the pod 17. .. The recovery assembly 15 is steered around the stone 60 to capture the stone 60 within the area of the recovery assembly 15 after the stone 60 has passed through the gap between the legs 21 of the recovery assembly 15. The stone 60 can be approached from the side or proximal or distal end of this recovery assembly. The calculus 60 is captured in the recovery assembly 15. The calculus 60 is removed from the tract by pulling the entire medical device 10 with the recovery assembly 15 containing the calculus 60 out of the tract. [0057] It will be apparent to those skilled in the art that various improvements and modifications can be made to the structures and methods of the invention without departing from the scope or spirit of the invention. In view of the above, the invention is construed to include modifications and improvements of the invention, provided that it falls within the scope of the claims and their equivalents. [Simple explanation of drawings] In drawings, the same reference symbol generally means the same part across different figures. It should also be emphasized that these drawings are not necessarily full-scale, but instead are generally arranged for convenience in explaining the principles of the invention. FIG. 1 is a plan view of one embodiment of the medical recovery device according to the present invention. FIG. 2 illustrates one embodiment of a recovery assembly according to the invention, which extends and opens beyond the distal end of its sheath. FIG. 3 illustrates a recovery assembly in which the distal portion of the recovery assembly illustrated in FIG. 2 extends beyond the distal end of its sheath and opens. FIG. 4A illustrates the recovery assembly illustrated in FIG. 2 that collapsed within the distal portion of its pod. FIG. 4B illustrates one embodiment of a recovery assembly according to the invention. FIG. 5A illustrates a front view of one embodiment of a junction between a proximal leg portion and a distal leg portion according to the present invention. FIG. 5B illustrates a side view of the joint illustrated in FIG. 5A. FIG. 6A illustrates a side view of one embodiment of a junction between a proximal leg portion and a distal leg portion according to the present invention. FIG. 6B illustrates a front view of the joint illustrated in FIG. 6A. FIG. 7A illustrates a front view of one embodiment of a junction between a proximal leg portion and a distal leg portion according to the present invention. FIG. 7B illustrates a side view of the joint illustrated in FIG. 7A. FIG. 8A illustrates a side view of one embodiment of a junction between a proximal leg portion and a distal leg portion according to the present invention. FIG. 8B illustrates a front view of the joint illustrated in FIG. 8A. FIG. 9 illustrates an embodiment of a recovery assembly according to the present invention. FIG. 10A illustrates an embodiment of a distal portion of a leg of a recovery assembly according to the invention. FIG. 10B illustrates an embodiment of the distal portion of the two legs of a recovery assembly according to the invention. FIG. 10C illustrates an embodiment of a recovery assembly comprising the legs illustrated in FIG. 10B. FIG. 11 illustrates an embodiment of a recovery assembly according to the present invention. FIG. 12A illustrates an embodiment of a recovery assembly according to the invention, the distal portion of the recovery assembly extending from the distal end of its sheath. FIG. 12B illustrates the recovery assembly of FIG. 12A, the proximal and distal parts of the recovery assembly extending beyond the distal end of its sheath. FIG. 13 illustrates a perspective view of another embodiment of the recovery assembly according to the invention. FIG. 14 illustrates another embodiment of the recovery assembly according to the invention. FIG. 15 illustrates another embodiment of the recovery assembly according to the invention. FIG. 16 illustrates another embodiment of the recovery assembly according to the invention. FIG. 17 illustrates another embodiment of the recovery assembly according to the invention. FIG. 18A illustrates another embodiment of the medical recovery device according to the invention. FIG. 18B illustrates a end view of one embodiment of the recovery assembly illustrated in FIG. 18A. FIG. 18C illustrates a end view of another embodiment of the recovery assembly illustrated in FIG. 18A. FIG. 18D illustrates another embodiment of the recovery assembly illustrated in FIG. 18A. FIG. 18E illustrates the recovery assembly illustrated in FIG. 18D approaching a stone. FIG. 18F illustrates the recovery assembly illustrated in FIG. 18D, which is partially collapsed around a stone. FIG. 18G illustrates the recovery assembly illustrated in FIG. 18D, which collapsed around the stone and partially collapsed within the distal end of the sheath. FIG. 19A illustrates another embodiment of the recovery assembly according to the invention. FIG. 19B illustrates another embodiment of the recovery assembly according to the invention. FIG. 20A illustrates the recovery assembly illustrated in FIG. 19A collapsed within its sheath. FIG. 20B illustrates the recovery assembly illustrated in FIG. 20A extending and opening from the distal end of its pod. FIG. 20C illustrates the stones captured in the recovery assembly illustrated in FIG. 20B. FIG. 21A illustrates the recovery assembly illustrated in FIG. 19B collapsed within its sheath. FIG. 21B illustrates the recovery assembly illustrated in FIG. 21A extending and opening from the distal end of its pod. FIG. 21C illustrates the stones captured in the recovery assembly illustrated in FIG. 21B. FIG. 22A illustrates another embodiment of the recovery assembly illustrated in FIG. 19A. FIG. 22B illustrates another embodiment of the recovery assembly illustrated in FIG. 19B.
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP11285500A | Cites | Japan |
| JP03205043A | Cites | Japan |
| JP2001252280A | Cites | Japan |
| WO96023446A1 | Cites | World Intellectual Property Organization (WIPO) |
39 members in 7 offices
Priority claims9
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| 55938500 | United States of America | A | |
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| 2001013065 | – | – | – |
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Members39
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| WO9623446A1 | World Intellectual Property Organization (WIPO) | A1 | |
| EP0812155A1 | European Patent Office (EPO) | A1 | |
| EP0812155A4 | European Patent Office (EPO) | A4 | |
| US6168603B1 | United States of America | B1 | |
| WO0110290A2 | World Intellectual Property Organization (WIPO) | A2 | |
| AU6400000A | Australia | A | |
| WO0110290A3 | World Intellectual Property Organization (WIPO) | A3 | |
| WO0110290B1 | World Intellectual Property Organization (WIPO) | B1 | |
| WO0110290A9 | World Intellectual Property Organization (WIPO) | A9 | |
| CA2403626A1 | Canada | A1 | |
| WO0180748A2 | World Intellectual Property Organization (WIPO) | A2 | |
| AU5717001A | Australia | A | |
| WO0180748A3 | World Intellectual Property Organization (WIPO) | A3 | |
| US6348056B1 | United States of America | B1 | |
| US6350266B1 | United States of America | B1 | |
| US6383196B1 | United States of America | B1 | |
| US2002068944A1 | United States of America | A1 | |
| US2002151928A1 | United States of America | A1 | |
| EP1278464A2 | European Patent Office (EPO) | A2 | |
| JP2003530944A | Japan | A | |
| EP0812155B1 | European Patent Office (EPO) | B1 | |
| DE69631121D1 | Germany | D1 | |
| DE69631121T2 | Germany | T2 | |
| US6780193B2 | United States of America | B2 | |
| US2005055033A1 | United States of America | A1 | |
| US6872211B2 | United States of America | B2 | |
| US2005216031A1 | United States of America | A1 | |
| AU2001257170B2 | Australia | B2 | |
| CA2212084C | Canada | C | |
| EP1278464B1 | European Patent Office (EPO) | B1 | |
| DE60137920D1 | Germany | D1 | |
| US7591825B2 | United States of America | B2 | |
| US2009259229A1 | United States of America | A1 | |
| US7918860B2 | United States of America | B2 | |
| JP4732665B2This record | Japan | B2 | |
| US2011213381A1 | United States of America | A1 | |
| US8617178B2 | United States of America | B2 | |
| US8828022B2 | United States of America | B2 |
19 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Cancellation because of no payment of annual feesLAPS | LAPS | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| Receipt of annual feesJAPANESE INTERMEDIATE CODE: R250R250 | R250 | |
| First payment of annual fees (during grant procedure)JAPANESE INTERMEDIATE CODE: A61A61 | A61 | |
| Renewal fee payment (event date is renewal date of database)FPAY | FPAY | |
| Certificate of patent or registration of utility modelJAPANESE INTERMEDIATE CODE: R150R150 | R150 | |
| Certificate of patent or registration of utility modelJAPANESE INTERMEDIATE CODE: R150R150 | R150 | |
| Written decision to grant a patent or to grant a registration (utility model)JAPANESE INTERMEDIATE CODE: A01A01 | A01 | |
| Written decision to grant a patent or to grant a registration (utility model)JAPANESE INTERMEDIATE CODE: A01A01 | A01 | |
| Decision of grant or rejection writtenTRDD | TRDD | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Written permission of extension of timeJAPANESE INTERMEDIATE CODE: A602A602 | A602 | |
| Written request for extension of timeJAPANESE INTERMEDIATE CODE: A601A601 | A601 | |
| Notification of reasons for refusalJAPANESE INTERMEDIATE CODE: A131A131 | A131 | |
| Written amendmentJAPANESE INTERMEDIATE CODE: A523A521 | A521 | |
| Written request for application examinationJAPANESE INTERMEDIATE CODE: A621A621 | A621 |
Numbers
- Publication
- 4732665
- Publication, DOCDB
- 4732665
- Publication, EPODOC
- JP4732665B
- Application
- 577851
- Application, DOCDB
- 2001577851
- Application, EPODOC
- JP20010577851
Titles2
- Japanese
- ハイブリッド結石回収装置
- English
- Hybrid stone recovery device
Classification
- CPC, 7
- A61B17/221
- A61B17/22031
- A61B17/32056
- A61B2017/0046
- A61B2017/22072
- A61B2017/2212
- A61B2017/2215
- IPC, 5
- A61B17 221
- A61B17 00
- A61B17 22
- A61B17 26
- A61B17 32