CPC A61B 17/105 (2013.01) [A61B 17/068 (2013.01); A61B 17/072 (2013.01); A61B 17/07207 (2013.01); A61B 17/115 (2013.01); A61B 17/1155 (2013.01); A61B 17/32002 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00115 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/00398 (2013.01); A61B 2017/0042 (2013.01); A61B 2017/00424 (2013.01); A61B 2017/0046 (2013.01); A61B 2017/00464 (2013.01); A61B 2017/00473 (2013.01); A61B 2017/0053 (2013.01); A61B 2017/00734 (2013.01); A61B 2017/0688 (2013.01); A61B 2017/07221 (2013.01); A61B 2017/0725 (2013.01); A61B 2017/2901 (2013.01); A61B 2017/2903 (2013.01); A61B 2017/2905 (2013.01); A61B 17/2909 (2013.01); A61B 2017/291 (2013.01); A61B 2017/2927 (2013.01); A61B 2017/320032 (2013.01); A61B 2090/038 (2016.02); A61B 2090/065 (2016.02); A61B 2090/0811 (2016.02); A61B 90/98 (2016.02)] | 20 Claims |
1. A surgical instrument, comprising:
an end effector, comprising:
a first jaw; and
a second jaw;
a closure drive to move the first jaw toward the second jaw during a closure stroke;
a firing drive to advance a knife through the end effector during a firing stroke;
an electric motor;
a drive shaft movable by the electric motor through the closure stroke and the firing stroke, the drive shaft comprising:
a first thread comprising a first thread pitch; and
a second thread comprising a second thread pitch, wherein the first thread pitch is different than the second thread pitch; and
an end-of-stroke switch operable between a closed state and an open state, wherein the electric motor is configured to move the drive shaft through the firing stroke when the end-of-stroke switch is in the closed state, and wherein the end-of-stroke switch is configured to transition into the open state when the firing drive reaches an end of the firing stroke.
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