ULTRASONIC SURGICAL INSTRUMENT WITH DUAL MODES

摘要

A surgical apparatus comprises a body, a shaft assembly, and an end effector. The end effector comprises a clamp arm and an ultrasonic blade in acoustic communication with an ultrasonic transducer via an acoustic waveguide that extends through the shaft assembly. The clamp arm is configured to pivot about a first pivot point toward and away from the ultrasonic blade along a first angular path from a first position to a second position to thereby provide a tissue sealing mode of operation. The clamp arm is further configured to pivot about a second pivot point toward and away from the ultrasonic blade along second angular path from the second position to a third position to thereby provide a tissue cutting and sealing mode of operation. The second pivot point is proximal to the first pivot point.

主权项

1. An apparatus for operating on tissue, the apparatus comprising:
(a) a body; (b) a shaft assembly, wherein the shaft assembly extends distally from the body, wherein the shaft assembly comprises an acoustic waveguide, wherein the waveguide is configured to acoustically couple with an ultrasonic transducer; (c) an end effector, wherein the end effector comprises:
(i) an ultrasonic blade in acoustic communication with the waveguide, and(ii) a clamp arm, wherein the clamp arm is configured to pivot toward and away from the ultrasonic blade,wherein the clamp arm is configured to pivot and stop at a first closed position associated with a first mode of operation,wherein the clamp arm is configured to pivot and stop at a second closed position associated with a second mode of operation.