US Patent 7241289 Surgical instrument

A surgical instrument comprising an instrument handle which is linked to a proximal end portion of a tube shaft and at the distal end portion of which an instrument head rotatably supporting an effector is linked so as to be inclinable. The effector includes at least one pivotable engaging element which is operable via an effector operating gear train in cooperation with the instrument handle. The effector operating gear train, in turn, has a pushing rod which is shiftably supported in the tube shaft and which, in the linking area of the instrument head at the tube shaft, abuts a pushing pin shiftably supported in the instrument head, the pushing pin being operatively connected to the engaging element.