US 11,944,297 B2
Variable response motor control algorithm for powered surgical stapler
Frederick E. Shelton, IV, Hillsboro, OH (US); Kevin M. Fiebig, Cincinnati, OH (US); and Shane R. Adams, Lebanon, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Aug. 16, 2021, as Appl. No. 17/402,677.
Prior Publication US 2023/0048444 A1, Feb. 16, 2023
Int. Cl. A61B 17/072 (2006.01); A61B 34/30 (2016.01)
CPC A61B 17/072 (2013.01) [A61B 34/30 (2016.02); A61B 2017/07271 (2013.01); A61B 2017/07285 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus comprising:
(a) an end effector, the end effector including:
(i) a body,
(ii) a blade,
(iii) a plurality of staples, and
(iv) a firing member, the firing member being operable to one or both of drive the blade through tissue or drive the plurality of staples into tissue;
(b) a motor operable to drive the firing member; and
(c) a processor configured to:
(i) activate the motor to distally advance the firing member within the body of the end effector,
(ii) detect an initiation condition, and
(iii) in response to detecting the initiation condition, activate an algorithmic bumping mode, the algorithmic bumping mode comprising:
(A) activating the motor to advance the firing member distally with a first plurality starting and stopping motions at a first frequency and a first power level, and
(B) activating the motor to retract the firing member proximally with a second plurality of starting and stopping motions at a second frequency and a second power level, wherein the first power level is different than the second power level.