Surgical tool mechanism
First Claim
1. A surgical tool comprising a longitudinally extending support means defining a longitudinal axis of said tool, an elongate centre member having a first jaw member at a distal end thereof, a longitudinally extending actuating means rotatable about said longitudinal axis, a second jaw member pivotably mounted to a distal end of said support means, and operating means for said second jaw member including rearwardly facing cam follower means, wherein a distal end of the actuating means is adapted to bear on said cam follower means, and is so configured that rotation of said actuating means causes pivoting of said second jaw member into and out of operative relationship with said first jaw member.
3 Assignments
0 Petitions
Accused Products
Abstract
The mechanism is applicable to a surgical tool which has a jaw (57) pivotably mounted to a distal end of a longitudinally extending support (58). The jaw is operated by action on a rearwardly facing cam follower (52, 53) by a lobe (51) on the distal end of an actuating tube (50). Rotation of the actuating tube (50) causes pivoting of the jaw (57) into and out of operative relationship with another jaw member (21) of the tool. The mechanism may be applied to any manipulative or gripping type of surgical implement, but is particularly applicable to ultrasonic tools adapted for cutting and/or coagulating.
15 Citations
20 Claims
- 1. A surgical tool comprising a longitudinally extending support means defining a longitudinal axis of said tool, an elongate centre member having a first jaw member at a distal end thereof, a longitudinally extending actuating means rotatable about said longitudinal axis, a second jaw member pivotably mounted to a distal end of said support means, and operating means for said second jaw member including rearwardly facing cam follower means, wherein a distal end of the actuating means is adapted to bear on said cam follower means, and is so configured that rotation of said actuating means causes pivoting of said second jaw member into and out of operative relationship with said first jaw member.
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20. A surgical tool substantially as described herein with reference to the Figures of the accompanying drawings.
Specification