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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0909037 (1997-08-11) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 664 인용 특허 : 12 |
A surgical stapler for effecting simultaneous cutting and stapling of tissue includes a frame and a staple cartridge positionable in the frame. The stapler includes a knife blade mounted for movement distally of the staple cartridge, the knife blade having a retraction lock feature including a locki
A surgical stapler for effecting simultaneous cutting and stapling of tissue includes a frame and a staple cartridge positionable in the frame. The stapler includes a knife blade mounted for movement distally of the staple cartridge, the knife blade having a retraction lock feature including a locking portion for abutment to a roof member of a spacer carried on the frame in a locked position, to prevent movement of the knife blade, unless the stapler is fitted with a fresh, unused staple cartridge. The locking portion is spring loaded by a leaf spring into the locked position. The knife blade includes a spring notch which coacts with the leaf spring to mechanically lift and pivotally thrust the knife blade to the locked position when the knife blade is retracted after use. The lift or thrust feature clears out tissue accumulation which enhances the ability of the knife to restore to its full elevated return position.
[ What is claimed:] [1.] A surgical stapler comprising:a frame;a leaf spring carried by said frame, said leaf spring having a spring finger;a staple cartridge positionable in said frame and comprising a cartridge body containing at least one row of staples, said cartridge defining an elongated knife
[ What is claimed:] [1.] A surgical stapler comprising:a frame;a leaf spring carried by said frame, said leaf spring having a spring finger;a staple cartridge positionable in said frame and comprising a cartridge body containing at least one row of staples, said cartridge defining an elongated knife slot;at least one firing wedge carried by said frame for movement longitudinally of said staple cartridge for effecting sequential driving of said staples from said cartridge; anda knife blade carried by said frame for movement longitudinally of said staple cartridge through said elongated knife slot, said knife blade being movable between a first position wherein said knife blade is substantially prevented from moving through said knife slot, and a second position wherein said knife blade is movable through said knife slot, said leaf spring arranged to urge said knife blade toward said first position, said knife blade having a spring stop surface formed on a first side of said knife blade facing said leaf spring, said stop surface facing toward a retraction direction of said knife blade, said spring finger inclined from said frame toward said knife blade and pivotable at said frame, said spring finger having a free end engagable by said stop surface, said spring finger pivoted by retraction of said blade, said blade elevated by pivoting of said spring finger.
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