The surgical instrument (12) comprises a handle (16), which is connected with a connector plug (14) through a cable (13) for connecting with a feeding surgery unit (11). A functional element (17) is provided, which is held by the handle and is supplied with an active medium from the feeding surgery unit through the cable. A microcontroller (24) is arranged in the handle and is connected with the operating elements (25). The microcontroller is supplied with electric energy through the cable and communicates data to the feeding surgery unit through a data communication.
