Patent ID: 11944341
Assignee: CILAG GMBH INTERNATIONAL
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. An ultrasonic surgical instrument comprising:
(a) a proximal housing;
(b) a shaft assembly extending distally from the proximal housing, wherein the shaft assembly comprises:
(i) a static tube fixed against movement relative to the proximal housing, and
(ii) a dynamic tube translatable relative to the static tube;

(c) an ultrasonic transducer supported by the proximal housing;
(d) a waveguide acoustically coupled with the ultrasonic transducer and extending distally through the dynamic tube of the shaft assembly;
(e) an end effector arranged at a distal end of the shaft assembly, wherein the end effector comprises:
(i) an ultrasonic blade acoustically coupled with the waveguide, wherein the ultrasonic transducer is operable to drive the waveguide and the ultrasonic blade with ultrasonic energy, and
(ii) a clamp arm movable relative to the ultrasonic blade for clamping tissue therebetween, wherein the dynamic tube is operable to translate relative to the static tube to actuate the clamp arm relative to the ultrasonic blade; and

(f) a base translatably coupled to the shaft assembly, wherein the base comprises:
(i) a first mechanical input configured to cause the dynamic tube to translate relative to the static tube to actuate the clamp arm relative to the ultrasonic blade, and
(ii) a second mechanical input configured to cause the shaft assembly to translate relative to the base.