Shipping wedge with lockout
15 claims: 2 independent, 13 dependent
- 1本体部分を有する外科手術器具と共に用いられるシッピングウエッジであって、該シッピングウエッジは、 ベースと、 該ベースから 突き出ており、 かつ 、 外科手術器具の移動可能な動作部材と係合可能であるブロッキング部材と、 該ベースから突き出ており、かつ 、 該外科手術器具の該本体部分と協働するような形状にされている可撓性アームと、 該ベースから 突き出ており、 かつ 、 該外科手術器具のロックアウト機構と係合可能であるロッキング部材 であって、該ロッキング部材が第1のロックされた位置にある場合に、該シッピングウエッジは、該本体部分にロックされ、該ロッキング部材が第2のロック解除された位置にある場合に、該シッピングウエッジは、該本体部分からの取り外しのためにロック解除される、ロッキング部材 と を含む、シッピングウエッジ。
- 2前記ロッキング部材は、拡大されたフランジを含む、請求項1に記載のシッピングウエッジ。
- 3前記フランジは、円形ディスクである、請求項2に記載のシッピングウエッジ。
- 4前記シッピングウエッジは、前記円形ディスクを前記ベースに接続する下向きの延長部を含む、請求項3に記載のシッピングウエッジ。
- 5前記ブロッキング部材は、 前記ベースの遠位端部に配置されたフックであり、該フックは、 前記外科手術器具の移動可能な動作部材と係合可能 である、 請求項1に記載のシッピングウエッジ。
- 6前記可撓性アームは、前記ベースの両側の側面から 突き出ている 第1の可撓性アームおよび第2の可撓性アームである、請求項2に記載のシッピングウエッジ。
- 7前記シッピングウエッジは、前記ベースの遠位端部に配置された整列ユニットを さらに 含み、 該整列ユニットは、一対の 遠位に突き出ている可撓性アーム を 含む、請求項6に記載のシッピングウエッジ。
- 8前記第1の 可撓性アームおよび 前記第2の 可撓性アーム は、前記ベースに沿って長手方向に間隔を空けられている、請求項6に記載のシッピングウエッジ。
- 9前記シッピングウエッジは、 第3の可撓性アームおよび第4の可撓性アームをさらに含み、該第3の可撓性アームおよび該第4の可撓性アームは、 前記ベースの両側の側面から 突き出ており、かつ、 前記第1の可撓性アームと前記第2の可撓性アームとから長手方向に間隔を空けられている 、 請求項8に記載のシッピングウエッジ。
- 10前記シッピングウエッジは、前記 ロッキング 部材の反対側の前記ベースの側面から延在する把握フレームをさらに含む、請求項7に記載のシッピングウエッジ。
- 11前記シッピングウエッジは、情報のしるしのさまざまなモードの表示のための、前記把握フレームと前記ベースとの間に配置されたしるしプレートをさらに含む、請求項10に記載のシッピングウエッジ。
- 12前記シッピングウエッジは、前記把握フレームの近位端部から延在する可撓性親指用タブをさらに含む、請求項10に記載のシッピングウエッジ。
- 13前記シッピングウエッジは、ポリマー材料から形成されている、請求項12に記載のシッピングウエッジ。
- 14前記シッピングウエッジは、一体的に形成されている、請求項13に記載のシッピングウエッジ。
- 15ロックアウト機構を有する外科手術器具であって、該外科手術器具は、 本体部分と、 該本体部分上に移動可能に取り付けられたアクチュエーターと、 該本体部分に移動可能に取り付けられたロッキングプレートを含むロックアウト機構と、 ロッキング部材を有する シッピングウエッジ と を含み、 該ロッキングプレートは、該 シッピングウエッジ の該ロッキング部材と係合可能であり、該本体部分からの該 シッピングウエッジ の取り外しを防ぐロックされた位置と、該本体部分からの該 シッピングウエッジ の取り外しを可能にするロック解除された位置との間での該アクチュエーターの 移動 に 応答して、 該ロッキングプレートが移動可能であり、該 シッピングウエッジ は、該外科手術器具の該本体部分と協働するような形状にされている可撓性アームを有する、外科手術器具。
Independent claims15
30 paragraphs, as filed
0001(background) 1. Technical field The present disclosure relates to shipping safety devices used with surgical instruments. More specifically, the present disclosure relates to a shipping wedge with a lockout member and a disposable loading unit or "SULU" with a lockout mechanism used with surgical instruments.
00022. (Background of related technology) To reduce trauma and recovery time, many surgical procedures are performed through small openings in the skin, such as incisions or natural body openings. Generally, such a procedure is called "endoscopic", except that the procedure when performed on the patient's abdomen is called "laparoscopic". Throughout this disclosure, the term "minimally invasive" should be understood to include both endoscopy and laparoscope.
0003During the course of a minimally invasive surgical procedure, surgical fasteners applied to the device are often used to connect adjacent sections of tissue. Many types of such devices are known in the art, and some of the devices are specifically adapted for use in a particular surgical procedure, the surgical procedure of which is not limited. Includes end-to-end anastomosis, circular end-to-end anastomosis, open gastroenterostomy, endoscopic gastroenterostomy, and lateral anastomosis. Examples of suitable surgical fasteners applied to the device are disclosed in Patent Document 1, Patent Document 2, Patent Document 3, and Patent Document 4. Typically, these surgical fastener application devices include a first member and a second member so that the target tissue can be positioned between the first and second members. , The first member is movable relative to the second member, thereby facilitating grasping and / or fastening the target tissue.
0004A straight surgical fastener application device generally includes two elongated jaw members, one of which is a surgical fastener cartridge containing multiple surgical fasteners aligned in two or more straight rows. The other of the jaw members, including, has multiple fastener forming pockets that are configured and dimensioned to receive and form the surgical fastener upon ejection of the fastener from the surgical fastener cartridge. Includes anvil parts. The surgical fastener application device also includes the knife so that the tissue to be connected and / or sealed is cut simultaneously or continuously during the operation of the surgical fastener application device. It is movable between straight rows of surgical knives. Given this ability, a linear type surgical fastener application device is commonly used during surgical procedures to simultaneously seal and cut target tissue, such as a patient's vascular structure, organs, and the like.
0005Some surgical fastener application devices are provided with two parts, a reusable handle or actuator part, and a movable or replaceable disposable loading unit or "SULU". SULU includes staples containing cartridges, anvils and knife blades for cutting stapled tissue.
0006Safety devices are provided to prevent the knife blades from moving during and / or before use. In some cases, the safety device can be removed from the SULU before it is assembled into a reusable handle. Therefore, there is a need for a shipping safety device and a SULU having a locking structure that prevents the shipping safety device from being removed from the SULU prior to assembly with the reusable handle.
<p num="0007"><patcit num="1"><text>U.S. Pat. No. 5,915,616</text></patcit><patcit num="2"><text>U.S. Pat. No. 6,202,914</text></patcit><patcit num="3"><text>U.S. Pat. No. 5,865,361</text></patcit><patcit num="4"><text>U.S. Pat. No. 5,964,394</text></patcit></p>
<p num="0008"> (wrap up) A shipping wedge used with a surgical instrument having a body portion is disclosed. The shipping wedge is a base, a blocking member that hangs from the base and is engageable with the movable moving member of the surgical instrument, as well as a locking out mechanism that hangs from the base and the surgical instrument. Includes engaging locking members. The flexible arm protrudes from the base and is shaped to cooperate with the body of the surgical instrument.</p><p num="0009"> In certain embodiments, the locking member comprises an enlarged flange in the form of a circular disc. The downward extension connects a circular disc to the base. The blocking member is a distally facing hook that engages with the movable moving member of the surgical instrument.</p><p num="0010"> In certain embodiments, the flexible arm is a first and second flexible arm that hangs from both sides of the base and is engageable with the body portion of the surgical instrument. .. The first flexibility grasping arm and the second flexibility grasping arm are spaced longitudinally along the base.</p><p num="0011"> The alignment unit is located at the distal end of the base and includes a set of distally protruding flexible arms for aligning the blocking member with the corresponding structure on the surgical instrument.</p><p num="0012"> In one embodiment, the shipping wedge hangs from both sides of the base and is longitudinally spaced from the first flexible arm and the second flexible arm. It further includes a sex arm and a third flexible arm.</p><p num="0013"> A grasping frame is provided that extends from the side of the base opposite the locking member. A sign plate is placed between the grasp frame and the base for display of various modes of sign of information. In a specific embodiment, the flexible thumb tab extends from the proximal end of the grasping frame.</p><p num="0014"> In one embodiment, the shipping wedge is made of a polymeric material, while in an alternative embodiment, the shipping wedge is made of a metallic material.</p><p num="0015"> In certain embodiments, the shipping wedges are formed as an integral structure.</p><p num="0016"> Surgical instruments with lockout mechanisms are also disclosed, the surgical instrument comprising a body portion and an actuator movably mounted on the body portion. The lockout mechanism, including the locking plate, is movably attached to the body. The instrument includes a loading lock with a locking member, the locking plate is engageable with the locking member of the loading lock, a locked position that prevents the loading lock from being removed from the body part, and a loading lock from the body part. The locking plate can be moved in response to the movement of the actuator to and from the unlocked position, and the loading lock can be shaped to work with the body of the instrument. It has a flexible arm.</p><p num="0017"> In a specific embodiment, the locking plate includes a keyhole slot that can be engaged with a shipping safety device. The keyhole slot contains a first narrower locking portion and a second enlarged unlocked portion.</p><p num="0018"> The locking plate is operatively connected to the actuator by an extension rod and is urged to a position locked by an urging spring attached to the body portion.</p><p num="0019"> In certain embodiments, the body portion has a knife member, and the locking lock has hooks that can be inserted through a hole defined in the body portion and that are arranged to block the movement of the knife member.</p><p num="0020"> Further disclosed are loading units with removable shipping safety devices. The loading unit generally includes a body portion, a movable operating device located on the body portion, and an actuator associated with the body portion and capable of operating to move the movable operating device. The locking member is movably attached to the main body portion and is movable according to the movement of the actuator. The locking member is movable between the first locked position and the second unlocked position.</p><p num="0021"> Detachable shipping safety devices generally include a base, a blocking member protruding from the base and engaging with a movable operating device, and a lockout protruding from the base and engaging with a locking member. Including members. The removable safety device is locked to the body part when the locking member is in the first locked position and for removal from the body part when the locking member is in the second unlocked position. , Unlocked.</p><p num="0022"> In certain embodiments, the locking member comprises a keyhole slot that is engageable with the lockout member of the removable safety device, whereby the removable safety device has the lockout member in the keyway of the locking member. When inside, it is locked to the body portion, and when the lockout member is inside a hole formed in the locking member, it is unlocked from the body portion.</p><p num="0023"> The present invention provides, for example, the following items. (Item 1) A shipping wedge used with a surgical instrument having a body portion, the shipping wedge is With the base A blocking member that hangs from the base and is engageable with a movable operating member of the surgical instrument. A flexible arm that protrudes from the base and is shaped to cooperate with the body portion of the surgical instrument. With a locking member that hangs from the base and is engageable with the lockout mechanism of the surgical instrument. Including shipping wedges. (Item 2) The shipping wedge according to any one of the above items, wherein the locking member includes an enlarged flange. (Item 3) The shipping wedge according to any one of the above items, wherein the flange is a circular disc. (Item 4) The shipping wedge according to any one of the above items, wherein the shipping wedge includes a downward extension for connecting the circular disc to the base. (Item 5) The shipping wedge according to any one of the above items, wherein the blocking member is a distally facing hook that is engageable with a movable moving member of the surgical instrument. (Item 6) The shipping wedge according to any one of the above items, wherein the flexible arm is a first flexible arm and a second flexible arm hanging from both side surfaces of the base. (Item 7) The shipping wedge according to any one of the above items, wherein the shipping wedge includes an alignment unit located at the distal end of the base and further includes a set of distally projecting flexible arms. (Item 8) The shipping wedge according to any one of the above items, wherein the first flexibility grasping arm and the second flexibility grasping arm are spaced apart in the longitudinal direction along the base. (Item 9) The shipping wedge depends on both sides of the base and is longitudinally spaced from the first flexible arm and the second flexible arm. The shipping wedge according to any of the above items, further comprising a sex arm and a third flexible arm. (Item 10) The shipping wedge according to any one of the above items, wherein the shipping wedge further includes a grasping frame extending from the side surface of the base opposite the locked member. (Item 11) The shipping wedge according to any one of the above items, further comprising a marking plate arranged between the grasping frame and the base for displaying various modes of marking of information. (Item 12) The shipping wedge according to any one of the above items, wherein the shipping wedge further includes a flexible thumb tab extending from the proximal end of the grasping frame. (Item 13) The shipping wedge according to any one of the above items, wherein the shipping wedge is formed from a polymer material. (Item 14) The shipping wedge according to any one of the above items, wherein the shipping wedge is integrally formed. (Item 15) A surgical instrument having a lockout mechanism, the surgical instrument is The main body and An actuator mounted movably on the main body and A lockout mechanism including a locking plate movably attached to the body and With a loading lock with a locking member Including The locking plate is engageable with the locking member of the loading lock, allowing a locked position to prevent removal of the loading lock from the body portion and removal of the loading lock from the body portion. The locking plate is movable in response to the movement of the actuator to and from the unlocked position, and the loading lock is shaped to cooperate with the body portion of the surgical instrument. Surgical instrument with a flexible arm. (Item 16) The locking plate comprises a keyhole slot that is engageable with the loading lock, the keyhole slot comprising a first narrower locking portion and a second enlarged unlocked portion. Surgical instruments described in any of. (Item 17) The surgical instrument according to any one of the above items, wherein the locking plate is operably connected to the actuator by an extension rod. (Item 18) The surgical instrument according to any one of the above items, wherein the locking plate is urged at the locked position by an urging spring attached to the main body portion. (Item 19) The item, wherein the body portion has a knife member, and the locking lock has hooks that can be inserted through a hole defined in the body portion and that are arranged to block the movement of the knife member. Surgical instruments described in any of. (Item 20) A loading unit having a shipping safety device, the loading unit is The main body and A movable operating device arranged in the main body portion, An actuator that is associated with the body portion and is capable of operating to move the movable operating device. A locking member that is movably attached to the body portion and is movable in response to the movement of the actuator, the locking member having a first locked position and a second unlocked position. With a locking member that can move between With a removable safety device with a base, A blocking member that protrudes from the base and is engageable with the movable operating device. With a lockout member protruding from the base and engaging with the locking member Including The removable safety device is locked to the body portion when the locking member is in the first locked position and the body when the locking member is in the second unlocked position. A loading unit that is unlocked for removal from the part.</p><p num="0024"> (Summary) A loading unit with a shipping safety device is provided for use with surgical instruments. The loading unit includes a main body portion, a movable operating device arranged on the main body portion, and an actuator associated with the main body portion and capable of operating to move the movable operating device. The locking member is movably attached to the main body portion and is movable according to the movement of the actuator. The locking member is movable between the first locked position and the second unlocked position. Detachable safety devices generally include a base, a blocking member protruding from the base and engaging with a movable operating device, and a lockout member protruding from the base and engaging with a locking member. And include. The flexible arm extends from the base and engages the body portion of the loading unit. The removable safety device is locked to the body part when the locking member is in the first locked position and for removal from the body part when the locking member is in the second unlocked position. , Unlocked.</p><p num="0025"> Embodiments of shipping wedges with the disclosed lockouts are disclosed herein with reference to the drawings.</p>
0026<figref num="1">FIG. 1 is a perspective view of an embodiment of a shipping wedge with a lockout (Shipping Wedge) installed in a disposable loading unit (SULU).</figref><figref num="2">FIG. 2 is a perspective view of a shipping wedge and SULU with separated parts.</figref><figref num="3">FIG. 3 is a perspective view of the shipping wedge.</figref><figref num="4">FIG. 4 is a side view of the shipping wedge.</figref><figref num="5">FIG. 5 is a front view of the shipping wedge.</figref><figref num="6">FIG. 6 is a bottom view of the shipping wedge.</figref><figref num="7">FIG. 7 is an end view taken along line 7-7 of FIG.</figref><figref num="8">FIG. 8 is a cross-sectional view of the opposite side taken along line 8-8 of FIG.</figref><figref num="9">FIG. 9 is a cross-sectional view taken along line 9-9 of FIG.</figref><figref num="10">FIG. 10 is a cross-sectional view taken along line 10-10 of FIG.</figref><figref num="11">FIG. 11 is a cross-sectional view taken along line 11-11 of FIG.</figref><figref num="12">FIG. 12 is a perspective view illustrating the distal end of the shipping wedge during the initial installation on SULU.</figref><figref num="13">FIG. 13 is a perspective view similar to FIG. 12 illustrating further installation of shipping wedges on SULU.</figref><figref num="14">FIG. 14 is a perspective view of the proximal end of a shipping wedge positioned adjacent to SULU.</figref><figref num="15">FIG. 15 is a perspective view of SULU with the cover tube removed.</figref><figref num="16">FIG. 16 is an enlarged perspective view of SULU illustrating the locking mechanism of the unlocked position on SULU.</figref><figref num="17">FIG. 17 is a cross-sectional view taken along line 17-17 of FIG. 16 in which the shipping wedge is installed through a locking mechanism.</figref><figref num="18">FIG. 18 is a perspective view similar to FIG. 15 in which the locking mechanism is in the locked position.</figref><figref num="19">FIG. 19 is an enlarged perspective view similar to FIG. 16 in which the locking mechanism is in the locked position.</figref><figref num="20">FIG. 20 is a cross-sectional view taken along line 20-20 of FIG. 19 with the shipping wedge locked.</figref><figref num="21">FIG. 21 is a cross-sectional view of a shipping wedge installed and locked in SULU.</figref><figref num="22">FIG. 22 is a detailed view of the enlarged area of FIG. 21 illustrating a distal shipping hook that engages with SULU and blocks SULU's knife blade.</figref>
0027(Detailed description of the embodiment) The disclosed shipping wedges with lockouts are described in detail here with reference to the drawings, and similar numbers indicate the same or corresponding elements in each of several drawings. As is common in the art, the term "proximal" refers to a part or part closer to the user or operator, i.e., the surgeon or clinician, while the term "distal" is farther from the user. Refers to parts or parts that are separated.
0028First, with reference to FIG. 1, a surgical stapling instrument 10 according to an embodiment of the present disclosure is disclosed. The instrument has a loading unit 12, eg, "SULU", and a shipping wedge or loading lock 10. The loading unit 12 is provided as a built-in replaceable device, which can be movably attached to the surgical stapling instrument to allow multiple uses of the surgical stapling instrument. is there. The loading unit 12 generally includes an elongated tubular member 14, which has a staple cartridge 16 attached to the distal end 18 of the elongated tubular member 14. The anvil member 20 extends from the distal end 18 of the elongated tubular member 14 and is secured to the distal end 18 of the elongated tubular member 14. The staple cartridge 16 can be moved from an open position spaced apart from the anvil member 20 to a collaboratively aligned closed position close to the anvil member 20 and anchors the tissue between the open and closed positions. .. Specifically, the proximal end 22 of the staple cartridge 16 is movably attached to the distal end 18 of the elongated tubular member 14. The staple cartridge 16 is movable between the open and closed positions depending on the movement of the actuator (not shown) associated with the surgical stapling instrument.
0029The staple cartridge 16 includes a plurality of rows of staple storage pockets 24. Staples (not shown) contained in a row of staple containment pockets 24 are ejected out of the staple cartridge 16 in response to the movement of an actuator, eg, a movable handle trigger, through the tissue and into the anvil member 20. On the other hand, the ends are bent. To accommodate the knife blades for cutting stapled tissue, the staple cartridge 16 includes a longitudinal knife slot 26 extending between a plurality of rows of staple accommodation pockets 24. Knife slots 26 allow the passage of knife blades (see Figures 21 and 22) through stapled tissue. When installed on the loading unit 12, the shipping wedge 10 prevents the knife blade from moving through the knife slot 26 in the manner described below in this specification.
0030The connector assembly 28 extends from the proximal end 30 of the elongated tubular member 14 and is provided to allow the loading unit 12 to be operatively connected to a surgical stapling instrument.
0031Here, referring to FIG. 2, the loading unit 12 includes a main body portion 32, and the main body portion 32 has a cover tube 34 on the main body portion 32. The hole 36 is provided through the cover tube 34 to form part of a locking mechanism 40 that prevents the shipping wedge 10 from being removed from the elongated tubular member 14 prior to placing the loading unit 12 on the surgical stapling instrument. Works with the locking plate 38, which is movably mounted on top of the body portion 32. Further, the locking mechanism 40 includes an urging or compression spring 42 for urging the locking plate 38 proximally to the body portion 32. The extension rod 44 abuts on the locking plate 38 and extends along the body portion 32 from the actuator 46 on the body portion 32. Specifically, the proximal end 48 of the extension rod 44 engages the actuator 46, while the distal end 50 of the extension rod 44 engages the proximal edge 52 of the locking plate 38. The movement of the actuator 46 drives the extension rod 44 distally and along the body portion 32 against the urging of the compression spring 42, driving the locking plate 38 distally.
0032The locking plate 38 includes a keyhole slot 54 having a distal longitudinal keyway 56 and a proximal hole 58. The shipping wedge 10 includes a proximal locking pin 60 that can be inserted into the keyhole slot 54 of the locking plate 38 through the hole 36 of the cover tube 34. Engagement of the keyway 56 of the locking plate 38 with the proximal locking pin 60 is described in more detail below until the loading unit 12 is properly placed within the surgical stapling instrument or the actuator 46. Fix the shipping wedge 10 to the loading unit 12 before it is manually moved by the method. The shipping wedge or loading lock 10 further includes a distal hook 62, the distal hook 62 being insertable through a hole 64 formed through the distal end 18 of the elongated tubular member 14, where the shipping wedge 10 is the loading unit. When installed on the 12, it helps to block the movement of the knife 17 (see Figure 17) through the knife slot 26 in the staple cartridge 16.
0033Here, with reference to FIGS. 3-11, details of the shipping wedge 10 are first described here with respect to FIGS. 3-6. The shipping wedge 10 includes a generally elongated rectangular base 66 having a distal end 68, a proximal end 70, an upper surface 72 and a lower surface 74. The proximal locking pin 60 protrudes from the lower surface 74 at the proximal end 70 of the base 66, while the distal hook 62 protrudes from the lower surface 74 at the distal end 72 of the base 66. Specifically referring to FIGS. 3 and 4, the proximal locking pin 60 includes a downward extension 76 extending from the lower surface 74 of the base 66. The downward extension 76 ends with an enlarged, circular locking flange 78. The distal hook 62 also has a downward extension 80 ending at the distal protruding lip 82. The locking flange 78 can be positioned through the hole 36 in the cover tube 34 and the hole 58 in the keyhole slot 54 of the locking plate 38, while the distal protruding lip 82 has an elongated tubular member 14 (also in FIG. 2). Can be inserted into the hole 64 (see).
0034To initially position the distal hook 62 with respect to the hole 64 of the elongated tubular member 14 (FIG. 2), the shipping wedge 10 includes a semi-cylindrical alignment unit 84 protruding distally. The alignment unit 84 includes a semi-cylindrical proximal portion 86 and a pair of distal alignment arms 88 and 90 extending distally from the proximal portion 86. The proximal portion 86 and the alignment arms 88 and 90 are relatively flexible to engage the elongated tubular member 14 with a snap fit.
0035With reference to FIGS. 3-6, in order to further secure the shipping wedge 10 on the snap-fitted elongated tubular member 14, the shipping wedge 10 projects flexible arms 92, 94 downward from the base 66. , 96 and 98 are included. The flexible arm is shaped so as to cooperate with the cover tube and the main body portion. Flexible arms 92, 94, 96 and 98 are arched in shape and spaced longitudinally along the base 66. For example, the flexible bow arms 92 and 94 are longitudinally spaced along one side of the base 66, while the flexible bow arms 96 and 98 are of the base 66. Spacing distally along the opposite flank. In addition, the flexible bow arms 92 and 94 are arranged longitudinally with respect to the flexible bow arms 96 and 98.
0036Further, the shipping wedge 10 includes a grasping frame 100 on the elongated tubular member 14 for facilitating the operation of the shipping wedge 10. The grasping frame 100 generally includes an arched distal portion 102, a central portion 104 and a proximal portion 106. The distal portion 102 extends from the distal end 108 of the central portion 104 to the distal end 68 of the base 66. Similarly, the proximal portion 106 extends from the proximal end 110 of the central portion 104 to the proximal end 70 of the base 66. The thumb tab 112 is proximal to the proximal end 110 of the central portion 104 to facilitate removal of the shipping wedge 10 from the elongated tubular member 14 in the manner described in more detail below. It is postponed. A marking plate 114 is provided between the base 66 and the grasping frame 100 to reinforce and stiffen the shipping wedge 10 and also to provide text on both sides 120 and 122 of the marking plate 114, respectively. Provides space for sign 116 and sign 118. The thumb tab 112 of the shipping wedge 10 includes a flexible arm 124 that ends at an enlarged end 126. The central raised rib 128 is provided on the central portion 104 of the grasping frame 100.
0037As best shown in FIG. 7, the distal hook 62 projects downward through the semi-cylindrical alignment unit 84 between the distal alignment arms 88 and 90. As best shown in FIG. 8, the proximal locking pin 60, including the circular locking flange 78, projects downward into the space defined by the flexible arched arms 94 and 98.
0038The shipping wedge 10 can be formed from a variety of relatively flexible materials such as polymer materials, metal materials and the like. Forming the shipping wedge 10 from a flexible material means that the alignment arms 88 and 90 of the alignment unit 84 protruding distally and the flexible arched arms 92, 94, 96 and 98 of the loading unit 12 By allowing it to bend outwards around, the shipping wedge 10 can be snap-fitted to the loading unit 12. Similarly, the flexible nature of the material forming the shipping wedge 10 facilitates the removal of the shipping wedge 10 from the loading unit 12 by allowing the thumb tab 112 to bend slightly. As mentioned earlier herein, the shipping wedge 10 includes a base 66, which is associated with the grasping frame 100 and the marking plate 114, with excessive bending of the shipping wedge 10 from the loading unit 12 and carelessness. Provide sufficient rigidity to the shipping wedge 10 to prevent stubborn removal.
0039The elements of the shipping wedge 10 can then be formed from a variety of separate parts that are welded, glued, or otherwise assembled, or with specific reference to FIGS. 9-11, the shipping wedge 10 is It can be integrally formed as one single, integral molding or machining unit. For example, as shown in FIG. 9, the flexible bow arm 94 is exemplified integrally with the marking plate 114 and the grasping frame 100, while in FIG. 10, the flexible bow arm 92 is Illustrated integrally with the sign plate 114 and the grasping frame 100. As best shown in FIG. 11, the distally projecting alignment unit 84 is illustrated to be integrally formed with the marking plate 114 and the grasping frame 110.
0040Here, with reference to FIGS. 2, 3 and 12-22, the use of the shipping wedge 10 associated with the lockout mechanism 40 on the loading unit 12 is described here. First referring to FIGS. 12 and 13, in order to assemble the shipping wedge 10 into the loading unit 12, the shipping wedge 10 is first positioned adjacent to the loading unit 12, whereby the alignment arms 88 and 90 are anvil 20. The distal hook 62 of the shipping wedge 10 is positioned above the hole 64 of the anvil 20. The shipping wedge or locking lock 10 is then manipulated so that the lip 82 protruding distal to the distal hook 62 enters the hole 64 (FIG. 13). Then, referring to FIGS. 12-14, the proximal end 70 of the base 66 is rotated downward in the direction of arrow A, and the flexible arched arms 92, 94, 96 and 98 cover the loading unit 12. Engage the tube 34 so that it bends around the cover tube 34. As described herein above, the flexible arched arms 92, 94, 96 and 98 are provided to secure the shipping wedge 10 to the loading unit 12, with the shipping wedge 10 from the loading unit 12. Prevent inadvertent fall. Specifically referring to FIG. 14, in this state, the proximal locking pin 60 of the shipping wedge 10 is positioned adjacent to the hole 36 of the cover tube 34.
0041Referring to FIGS. 15 and 16, during the initial or factory installation of the shipping wedge 10 on the loading unit 14, the locking mechanism 40 is unlocked by advancing the actuator 46 distally in the direction of arrow B. It is intentionally operated in the state of being. The movement of the actuator 46 drives the extension rod 44 distally and the locking plate 38 distally to the body portion 32 of the elongated tubular member 14 against the urgency of the compression spring 42. As specifically shown in FIG. 16, when the locking plate 38 is in the most distal position with respect to the body portion 32 of the elongated tubular member 14, the hole 58 in the keyhole slot 54 of the locking plate 38 is It is positioned directly above the recess 130 formed in the body portion 32 of the elongated tubular member 14. Further, as best shown in FIG. 16, the locking plate 38 includes a distal arm 132 that engages the proximal end 134 of the compression spring 42. The compression spring 42 is constrained in the spring groove 136 formed in the main body portion 32. The distal end 138 of the compression spring 42 abuts the distal end 140 of the spring groove 136.
0042Now, with reference to FIG. 17, arrow A, once the shipping wedge 10 brings the flexible arched arms 92, 94, 96 and 98 into engagement with the cover tube 34 (FIG. 14). When fully operated in the direction of, the proximal locking pin 60 of the shipping wedge 10 is seated in the recess 130 of the body portion 32 of the elongated tubular member 14, thereby the downward extension 76 of the proximal locking pin 60. Is positioned in the hole 58 of the keyhole slot 54 of the locking plate 38. In this position, the locking plate 38 is the most distal or unlocked state that allows the proximal locking pin 60 of the shipping wedge 10 to be inserted through the keyhole slot 54 of the locking plate 38 and then removed. It is in.
0043Now, referring to FIGS. 18 and 19, in order to move the locking plate 38 into the locked state, the distal pressure is removed from the actuator 46 and the lockout mechanism 40 including the extension rod 44 and the lockout plate 38 Allows it to move proximally in the direction of arrow C against the urgency of the compression spring 42. As specifically shown in FIG. 19, when the locking plate 38 is in the most recent position, the narrower width keyway 56 of the keyhole slot 54 is a recess formed in the body portion 32 of the elongated tubular member 14. Placed on 130.
0044Referring to FIG. 20, the locking plate 38 of the lockout mechanism 40 in the proximal or locked position positions the downward extension 76 of the proximal locking pin 60 within the keyway 56 of the keyhole slot 54. .. The circular locking flange 78 of the proximal locking pin 60 having a diameter greater than the width of the keyway 56 of the keyhole slot 54 prevents the proximal locking pin 60 from being removed out of the recess 130 formed in the body portion 32. .. This prevents the shipping wedge 10 from being removed from the body portion 32 and then the loading unit 12 when the locking mechanism 40, especially the locking plate 38, is in the most distal or locked state. Thus, the locking mechanism 40 is deliberately during the initial assembly of the shipping wedge 10 into the loading unit 12 , or (more importantly) the complete installation of the loading unit 12 into the surgical stapling instrument. During the distal movement of the actuator 46 by, the locking mechanism 40 completely prevents the shipping wedge 10 from being removed from the loading unit 12 by the time it appears to have been moved into an unlocked state.
0045Finally, with reference to FIGS. 21 and 22, as described herein, the shipping wedge 10, in particular the distal hook 62 of the shipping wedge 10, is contained in the loading unit 12 within the elongated tubular member 14 as the knife blade 142. Provided to prevent inadvertent and premature distal movement or advancement. As best shown in FIG. 22, with the distal hook 62 positioned through the hole 64 of the elongated tubular member 14, the proximal end 144 of the distal hook 62 is the distal end 146 of the knife blade 142. Blocks the distal movement of the knife blade 142 by engaging with.
0046It is understood that various changes can be made to the embodiments disclosed herein. For example, the locking pin or loading lock on the shipping wedge may have an alternative shape, such as a T-shape. In addition, the locking pins can be engaged by the edges of the locking plate. In addition, the distal hook or loading lock on the shipping wedge may engage an alternative component on the SULU, such as a drive bar for ejecting a stable. The loading unit shown in FIG. 1 has a staple cartridge and an anvil. However, surgical instruments with removable and replaceable staple cartridges are also conceivable. Therefore, the above should be construed as merely a representative example of a particular embodiment, rather than as a limitation. Those skilled in the art anticipate other changes in the scope and spirit of the claims attached herein.
004710 shipping wedges 12 loading unit 14 Elongated tubular member 16 staple cartridge 18 Distal end of elongated tubular member 20 Anvil member 22 Proximal end of staple cartridge 24 staple storage pocket 26 knife slot 28 Connector assembly 30 Proximal end of elongated tubular member
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Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP2004531280A | Cites | Japan |
| JP2007507307A | Cites | Japan |
| US20040049126A1 | Cites | United States of America |
21 members in 6 offices
Members21
| Document | Office | Kind | |
|---|---|---|---|
| CA2767650A1 | Canada | A1 | |
| EP2499987A2 | European Patent Office (EPO) | A2 | |
| US2012234894A1 | United States of America | A1 | |
| AU2012200851A1 | Australia | A1 | |
| JP2012196435A | Japan | A | |
| US8397972B2 | United States of America | B2 | |
| AU2012200851B2 | Australia | B2 | |
| US2013153629A1 | United States of America | A1 | |
| AU2013227990A1 | Australia | A1 | |
| US8701962B2 | United States of America | B2 | |
| US2014209659A1 | United States of America | A1 | |
| EP2499987A3 | European Patent Office (EPO) | A3 | |
| US8967445B2 | United States of America | B2 | |
| US2015129632A1 | United States of America | A1 | |
| US9107662B2 | United States of America | B2 | |
| AU2013227990B2 | Australia | B2 | |
| JP2016135281A | Japan | A | |
| JP6000575B2This record | Japan | B2 | |
| CA2767650C | Canada | C | |
| EP2499987B1 | European Patent Office (EPO) | B1 | |
| ES2766378T3 | Spain | T3 |
14 legal events, as the office reported them to INPADOC
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Numbers
- Publication
- 6000575
- Application
- 49255
Titles2
- Japanese
- ロックアウトを有するシッピングウエッジ
- English
- Shipping wedge with lockout
Classification
- CPC, 10
- A61B17/07207
- A61B17/068
- A61B2017/00473
- A61B2017/07271
- A61B2017/07285
- A61B2090/038
- A61B2090/0801
- A61B2090/034
- A61B2017/0688
- A61B17/0686
- IPC, 1
- A61B17 072
