US 11,744,636 B2
Electrosurgical systems with integrated and external power sources
Frederick E. Shelton, IV, Hillsboro, OH (US); Daniel J. Mumaw, Liberty Township, OH (US); and Kevin M. Fiebig, Cincinnati, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on May 28, 2020, as Appl. No. 16/885,870.
Claims priority of provisional application 62/955,299, filed on Dec. 30, 2019.
Prior Publication US 2021/0196343 A1, Jul. 1, 2021
Int. Cl. A61B 18/14 (2006.01); A61B 17/32 (2006.01); A61B 17/34 (2006.01); A61B 18/12 (2006.01); H02J 7/00 (2006.01); A61B 18/16 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1445 (2013.01) [A61B 17/320092 (2013.01); A61B 17/3468 (2013.01); A61B 18/1206 (2013.01); A61B 18/1442 (2013.01); H02J 7/0068 (2013.01); A61B 18/16 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/320074 (2017.08); A61B 2017/320094 (2017.08); A61B 2018/0063 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00107 (2013.01); A61B 2018/00148 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/00666 (2013.01); A61B 2018/00827 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00892 (2013.01); A61B 2018/00994 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1253 (2013.01); A61B 2018/142 (2013.01); A61B 2018/147 (2013.01); A61B 2018/1467 (2013.01); A61B 2562/164 (2013.01); A61B 2562/166 (2013.01); H02J 7/0047 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A surgical system, comprising:
a generator; and
a surgical instrument configured to receive power from the generator, wherein the surgical instrument comprises:
a housing comprising an electric motor;
a shaft extending from the housing, wherein the shaft defines a longitudinal shaft axis;
an end effector extending from the shaft and operably responsive to actuations from the electric motor, wherein the end effector is transitionable between an open configuration and a closed configuration, wherein the end effector is rotatable relative to the longitudinal shaft axis about an articulation axis that is transverse to the longitudinal shaft axis, and wherein the generator is incapable of supplying a sufficient power directly to the electric motor to cause the electric motor to perform the actuations; and
an internal charge accumulator in electric communication with the generator, wherein the internal charge accumulator is configured to supply power to the electric motor, wherein the internal charge accumulator is chargeable by the generator to a threshold value at a charge rate dependent on a charge level of the internal charge accumulator, wherein the speed of the electric motor is permitted to reach a maximum speed when the charge level of the internal charge accumulator is above a predetermined minimum level and wherein the charge rate is independent of a charge expenditure by the surgical instrument.