US Patent 9345490 Surgical power tool and actuation assembly therefor

A surgical power tool has an actuation assembly for the actuation-force-dependent control of the tool. The actuation assembly includes a force sensor configured to sense the actuation force and a carrier component for the force sensor which is arranged upstream of the force sensor in a direction of force application and is coupled thereto in a force-transmitting manner. A mechanical damping member is arranged upstream of the carrier component in the direction of force application. The damping member protects the carrier component and the force sensor, for example, from impacts and shocks and the accompanying plastic deformations.