Patent ID: 8453914
Filing Date: 2013-06-04
Classification: A61B,H01H,Y10T

Abstract:
1. A surgical instrument, comprising: an end effector comprising a moveable component; an electric motor for powering the end effector; a motor control circuit connected to the motor for controlling the motor, wherein the motor control circuit comprises a plurality of switches, wherein the plurality of switches comprises a first switch with a moveable actuator; a pinion that is rotated by rotation of the electric motor; a rack that is driven by the pinion upon rotation by the electric motor, wherein the rack moves longitudinally when driven by the pinion upon rotation by the electric motor, wherein the rack causes movement of the moveable component in the end effector when driven by the pinion upon rotation by the electric motor; and a slider that moves in a same direction as the rack and actuates the moveable actuator of the first switch when the rack engages the slider to move the slider from a first slider position to a second slider position relative to the first switch, wherein the slider remains in the second slider position relative to the first switch until the rack engages the slider to move the slider from the second slider position to the first slider position.