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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0433660 (1995-05-04) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 750 인용 특허 : 0 |
An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access
An improved surgical instrument is provided for applying surgical fasteners, such as staples, to human tissue which is particularly suited for applying one or more rows of fasteners across a tissue lumen. The surgical instrument can be used in thoracic and abdominal surgical procedures where access to the surgical site is restricted. The surgical instrument includes an articulated fastener applying assembly mounted on a rotatable and flexible support shaft assembly to provide more convenient access to restricted surgical sites. The fastener applying assembly has a compact construction including a fixed jaw which supports a fastener cartridge and a movable jaw which supports an anvil for clamping the tissue therebetween. The fastener applying assembly includes a pin placement mechanism which is actuated by the movable jaw to control the movement of a tissue retaining pin on the fixed jaw. A dual cam mechanism is provided for driving the fasteners into the tissue clamped between the anvil and the fastener cartridge. The instrument has an actuator handle assembly with an improved actuator mechanism for closing the jaws and driving the fasteners into the tissue.
[ We claim:] [1.] A surgical stapling instrument for applying one or more surgical staples to tissue, comprising:a stapling head assembly including a proximal jaw which supports a staple holder for receiving one or more surgical staples, a distal law which supports an anvil for clamping the tissue a
[ We claim:] [1.] A surgical stapling instrument for applying one or more surgical staples to tissue, comprising:a stapling head assembly including a proximal jaw which supports a staple holder for receiving one or more surgical staples, a distal law which supports an anvil for clamping the tissue against said staple holder when said jaws are closed, and a staple driver for driving the staples from said staple holder into the tissue and against said anvil;an actuator handle assembly including a jaw closure lever for closing said jaws to move said anvil into a tissue clamping position and a staple firing trigger for actuating said staple driver;a shaft assembly for mounting said stapling head assembly on said actuator handle assembly, said shaft assembly having proximal and distal ends and describing a longitudinal axis;a closure cable connecting said distal jaw to said jaw closure lever and extending through said shaft assembly for pulling said distal jaw toward said proximal law when said jaw closure lever is actuated;a firing cable connecting said staple driver to said staple firing trigger and extending through said shaft assembly for actuating said staple driver when said staple firing trigger is actuated;a pivot connection at the distal end of said shaft assembly for supporting said stapling head assembly to pivot about a pivot axis transverse to the longitudinal axis of said shaft assembly;said jaw closure cable being slidably received in said pivot connection and extending therethrough transversely to said pivot axis; andsaid pivot connection including means for providing a path of substantially constant length for said closure cable as said stapling head assembly pivots relative to said shaft assembly; andwherein:each of said cables has a multi-filament counter-twisted construction to resist changes in length when said shaft assembly is rotated about its axis.
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