US 11,871,923 B2
Motorized surgical instrument
David C. Yates, Morrow, OH (US); Thomas W. Huitema, West Chester, OH (US); and Frederick E. Shelton, IV, Hillsboro, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Aug. 1, 2022, as Appl. No. 17/878,425.
Application 17/878,425 is a continuation of application No. 15/689,738, filed on Aug. 29, 2017, granted, now 11,406,380.
Application 15/689,738 is a continuation of application No. 14/658,524, filed on Mar. 16, 2015, granted, now 10,456,133, issued on Oct. 29, 2019.
Application 14/658,524 is a continuation of application No. 13/745,176, filed on Jan. 18, 2013, granted, now 9,005,230, issued on Apr. 14, 2015.
Application 13/745,176 is a continuation in part of application No. 13/021,876, filed on Feb. 7, 2011, granted, now 9,028,519, issued on May 12, 2015.
Application 13/021,876 is a continuation of application No. 12/235,972, filed on Sep. 23, 2008, granted, now 9,050,083, issued on Jun. 9, 2015.
Prior Publication US 2023/0016171 A1, Jan. 19, 2023
Int. Cl. A61B 17/064 (2006.01); A61B 17/068 (2006.01); A61B 17/32 (2006.01); H02J 7/00 (2006.01); A61B 17/072 (2006.01); A61B 17/115 (2006.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01); H02J 7/34 (2006.01)
CPC A61B 17/068 (2013.01) [A61B 17/07207 (2013.01); A61B 17/1155 (2013.01); A61B 17/320016 (2013.01); H02J 7/0024 (2013.01); H02J 7/0068 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07278 (2013.01); A61B 2017/07285 (2013.01); A61B 2017/2923 (2013.01); A61B 2017/2927 (2013.01); A61B 2017/320052 (2013.01); H02J 7/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument comprising:
an end effector comprising a moveable firing driver;
an electric motor for actuating the firing driver; and
a motor control circuit for controlling the motor, wherein the motor control circuit comprises:
a power source connected to the motor for electrically powering the motor;
a charge accumulator device; and
a switching circuit connected to the power source and the charge accumulator device, wherein the switching circuit comprises:
a first switch for selectively connecting the charge accumulator device to the power source not in series to charge the charge accumulator device; and
a second switch for selectively connecting the charge accumulator device in series with the power source to provide additional power to the motor, wherein, when the first switch is selectively connecting the charge accumulator device to the power source, the second switch is not selectively connecting the charge accumulator device in series with the power source.