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다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0417587 (1995-04-06) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 798 인용 특허 : 16 |
A surgical stapling instrument for performing a circular anastomosis stapling operation is provided. The surgical instrument includes a stapling head assembly mounted by a flexible support shaft to an actuator handle assembly. The support shaft is capable of bending in any radial direction relative
A surgical stapling instrument for performing a circular anastomosis stapling operation is provided. The surgical instrument includes a stapling head assembly mounted by a flexible support shaft to an actuator handle assembly. The support shaft is capable of bending in any radial direction relative to its centerline into a curved configuration suitable for insertion into a patient. The flexible support shaft includes a dual coil structure which is adapted to support itself in any curved configuration and to resist deflection upon insertion into the patient and actuation of the stapling head assembly. The stapling head assembly includes a driver assembly which is operable in multiple stages to separate the staple forming and tissue cutting actions to reduce the peak force required to operate the instrument. The actuator handle assembly includes a staple actuating lever and a cam follower assembly which operate in two stages with different mechanical advantages to facilitate the operation of the instrument by a surgeon. The actuator handle assembly includes a thumb wheel for opening and closing the anvil and an adjusting knob for adjusting the anvil gap. A control lever is provided for pivoting the stapling head assembly relative to the flexible support shaft.
A surgical stapling instrument for applying a plurality of surgical staples to tissue, comprising: a stapling head assembly including a staple holder for receiving a plurality of surgical staples, an anvil for clamping the tissue against said staple holder, and a staple driver for engaging and drivi
A surgical stapling instrument for applying a plurality of surgical staples to tissue, comprising: a stapling head assembly including a staple holder for receiving a plurality of surgical staples, an anvil for clamping the tissue against said staple holder, and a staple driver for engaging and driving the staples from said staple holder into the tissue and against said anvil; an actuator handle assembly including first actuator means for adjusting the gap between said anvil and said staple holder and second actuator means for actuating said staple driver; and a shaft assembly including a flexible support shaft for mounting said stapling head assembly on said actuator handle assembly; a tension member contained within said support shaft for transmitting tension from said first actuator means to said anvil to resist the forces exerted on said anvil when the staple are formed; a compression member contained within said support shaft for transmitting a compressive force from said second actuator means to advance said staple driver to drive the staples from said staple holder into the tissue and to form the staple against said anvil; and said support shaft being flexible in any radial direction relative to its centerline into a curved configuration for insertion into a patient, said flexible support shaft being adapted to support itself in said curved configuration and to resist deflection upon insertion of said support shaft into the patient and actuation of said stapling head assembly; and means for coupling said support shaft to said actuator handle assembly, said means for coupling comprising means for compensating for differences in deflection of said tension member and said compression member relative to said support shaft.
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