The surgical instrument (10) has a tool part (11) arranged on a shaft along a longitudinal axis (13), where a tool is arranged at the distal end of the shaft. The tool is comprised of an activated tool element. A handle part (12) has a handle (25) and an actuator (26), where the handle part is operatively connected to the activated tool element. The handle part and the tool part are interconnected through a biaxial hinge.