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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0503231 (1983-06-10) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 607 인용 특허 : 5 |
A disposable linear surgical stapling instrument comprising a body with handle means and trigger means and, at its forward end, a fixed anvil-supporting jaw. A movable jaw comprising a staple cartridge is mounted on the body and is operatively connected to the handle means and trigger means. An adju
A disposable linear surgical stapling instrument comprising a body with handle means and trigger means and, at its forward end, a fixed anvil-supporting jaw. A movable jaw comprising a staple cartridge is mounted on the body and is operatively connected to the handle means and trigger means. An adjustment bolt is slidably mounted in the body and is shiftable forwardly and rearwardly therein by an adjustment knob rotatively mounted at the rearward end of the body. The adjustment bolt, when shifted forwardly, shifts the handle means and trigger means forwardly and the movable jaw toward the fixed jaw, the staple cartridge approaching the anvil. A staple driver is connected to and shiftable by the trigger means to drive staples from the cartridge, through the tissue to be sutured and against the anvil over a range of distances between the anvil and the cartridge constituting the working gap of the instrument. The adjustment bolt also actuates indicator means to each side of the instrument indicating when the working gap has been achieved. An alignment pin is mounted on the body, extending through the cartridge, and is shiftable to an operative position extending into the fixed jaw. Safety means prevents rotation of the adjustment knob unless the alignment pin is in its operative position. Another safety means prevents actuation of the trigger means until the distance between the anvil and cartridge approaches the working gap. Additional means locks the trigger means after achieving its actuated position to give visual, tactile and audible indication that the staples have been formed and implanted.
A linear surgical stapling instrument for forming and implanting at least one rectilinear row of surgical staples in the tissue of a patient, said instrument comprising an elongated body terminating at its forward end in a fixed jaw, an anvil mounted on said fixed jaw, a basic assembly slidably supp
A linear surgical stapling instrument for forming and implanting at least one rectilinear row of surgical staples in the tissue of a patient, said instrument comprising an elongated body terminating at its forward end in a fixed jaw, an anvil mounted on said fixed jaw, a basic assembly slidably supported by said body and shiftable longitudinally thereof, said basic assembly comprising a movable jaw subassembly, a trigger subassembly, a handle subassembly and an adjustment bolt-adjustment knob subassembly all operatively joined together, said movable jaw subassembly comprising a cartridge containing at least one row of surgical staples and having a forward surface facing and parallel to said anvil, a hollow casing affixed to said cartridge, a driver for said staples slidably mounted within said casing, means to shift said driver within said casing between a retracted position and a staple driving position to drive said staples through the tissue and against said anvil over a range of distances between said cartridge and said anvil constituting the working gap of the instrument, said driver shifting means comprising an elongated driver rod having a forward end connected to said driver within said casing and a rearward end connected to said trigger assembly, said trigger assembly having an upper end pivotally affixed to said basic assembly and a lower free end, said trigger being pivotable between an unactuated position spaced from said handle assembly and wherein said driver is in said retracted position and an actuated position adjacent said handle assembly and wherein said driver is in said staple driving position, said adjustment bolt being affixed to said basic assembly within said body, said adjustment knob being captively and rotatably mounted at the rearward end of said body and being threadedly engaged with said adjustment bolt such that rotation of said adjustment knob in one direction will shift said adjustment bolt and said basic assembly rearwardly with respect to said body with said movable jaw assembly shifting away from said fixed jaw and said cartridge shifting away from said anvil, and rotation of said adjustment knob in the other direction will shift said basic assembly forwardly with respect to said body and said movable jaw assembly toward said fixed jaw and said cartridge toward said anvil, an alignment and retaining pin slidably mounted on said body, said alignment pin having a free forward end, said alignment pin being shiftable longitudinally of said body between a retracted position wherein said forward end of said pin lies within said casing and an extended position wherein said free end passes through coaxial perforations in said cartridge and said anvil and into a recess in said fixed jaw to assure proper alignment of said cartridge and said anvil, indicator means to indicate when the distance between said cartridge and said anvil is at and within said working gap of said instrument, and safety means to assure proper sequential operation of said instrument.
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