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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0602204 (1996-02-20) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 998 인용 특허 : 23 |
This invention provides an articulated surgical instrument for use in laparoscopic surgical procedures including, in general; a handle, an elongated shaft, and an articulating tip. The instrument further includes a proximal rod, a desensitizing link, and a distal rod. The proximal rod is disposed in
This invention provides an articulated surgical instrument for use in laparoscopic surgical procedures including, in general; a handle, an elongated shaft, and an articulating tip. The instrument further includes a proximal rod, a desensitizing link, and a distal rod. The proximal rod is disposed in the shaft for reciprocating movement between a proximal position and a distal position. The distal end of the proximal rod is coupled to the desensitizing link at a first pivot point. The desensitizing link is disposed within the shaft for rotational movement about a second pivot point in response to the reciprocating movement of the proximai rod. The proximal end of the distal rod is coupled to the desensitizing link at a third pivot point. The distal rod reciprocates between a proximal position and a distal position in response to the rotational movement of the desensitizing link, and its distal end is operatively coupled to the tip such that the reciprocating movement of the distal rod causes the tip to articulate about the articulation axis. The third pivot point, however, is closer to the second pivot point than is the first pivot point such that the distal rod reciprocates over a lesser distance than does the proximal rod.
[ We claim:] [23.] An articulated linear stapling instrument for use in laparoscopic surgical procedures comprising:a handle;an elongated shaft having a distal end and a proximal end, said proximal end of said shaft being coupled to said handle;a tip pivotally coupled to said distal end of said shaf
[ We claim:] [23.] An articulated linear stapling instrument for use in laparoscopic surgical procedures comprising:a handle;an elongated shaft having a distal end and a proximal end, said proximal end of said shaft being coupled to said handle;a tip pivotally coupled to said distal end of said shaft for articulation about an articulation axis and including two opposed jaws pivotally coupled for movement between an open position and a closed position;an actuator mounted for movement on said handle and operatively connected to said tip such that movement of said actuator causes articulation of said tip; anda lever mounted on said handle, said lever being moveable between a raised position and a lowered position such that movement of said lever causes said opposed jaws to move from their open position to their closed position;wherein said lever, in its raised position, is disengaged from said actuators and said lever, in its lowered position, engages and immobilizes said actuator such that articulation of said tip is precluded when said opposed jaws are in their closed position.
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