US 12,167,852 B2
Surgical stapling device with powered handle assembly
Xiaowen Sun, Shanghai (CN); Yezhou Wu, Shanghai (CN); Lin Chen, Shanghai (CN); Fen Du, Shanghai (CN); and Shouwei Li, Shanghai (CN)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Feb. 2, 2023, as Appl. No. 18/105,076.
Application 18/105,076 is a continuation of application No. 17/279,836, granted, now 11,571,214, previously published as PCT/CN2018/110427, filed on Oct. 16, 2018.
Prior Publication US 2023/0181189 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/072 (2006.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01)
CPC A61B 17/07207 (2013.01) [A61B 2017/00398 (2013.01); A61B 2017/07257 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/2923 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical device comprising:
a device housing;
a motor assembly supported within the device housing;
a drive member supported within the device housing and movable between an advanced position and a retracted position;
a tool assembly; and
a gear assembly positioned within the device housing between the motor assembly and the drive member, the gear assembly including a first gear engaged with the motor assembly, a transmission shaft, a second gear engaged with the first gear and supported on the transmission shaft, and a pinion fixedly supported on the transmission shaft and engaged with the drive member, the transmission shaft movable in relation to the second gear from a first position in which the transmission shaft is rotatably fixed to the second gear and a second position in which the transmission shaft is rotatable independently of the second gear;
wherein in the first position of the transmission shaft, rotation of the first gear causes rotation of the second gear to rotate the pinion to cause movement of the drive member, and in the second position of the transmission shaft, the transmission shaft is rotatable independently of the second gear such that the transmission shaft can be manually rotated to move the drive member within the device housing independently of the motor assembly.