US 12,029,508 B2
Adjustable power transmission mechanism for powered surgical stapler
Frederick E. Shelton, IV, Hillsboro, OH (US); Kevin M. Fiebig, Cincinnati, OH (US); Shane R. Adams, Lebanon, OH (US); and Adam D. Hensel, Cincinnati, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Aug. 16, 2021, as Appl. No. 17/402,744.
Prior Publication US 2023/0051938 A1, Feb. 16, 2023
Int. Cl. A61B 17/068 (2006.01); A61B 17/072 (2006.01); A61B 34/30 (2016.01); A61B 17/00 (2006.01)
CPC A61B 34/30 (2016.02) [A61B 17/0686 (2013.01); A61B 17/072 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/07257 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07285 (2013.01); A61B 2034/301 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument, comprising:
(a) a body;
(b) a shaft assembly extending distally from the body;
(c) an end effector disposed on a distal end of the shaft assembly, wherein the end effector includes a first jaw and a second jaw;
(d) a stapling assembly supported by one of the first jaw or the second jaw of the end effector; and
(e) a drive system including a shifting mechanism, an articulation drive module, an actuation drive module, and a rotation drive module, the shifting mechanism being configured to selectively modify a mechanical advantage of a drive input driven by a motor and used to power one or more functions associated with operation of the end effector, the shifting mechanism being further configured to selectively place the articulation drive module into mechanical communication with the actuation drive module, the rotation drive module, or both.