The surgical instrument has slide (3) which is movably located on the shaft component (1). The shaft component and slide are releasably connected to each other. A detent element (14) is protruded from the shaft component and/or from the slide, when the slide slides along the shaft component, such that the detent element enters a recess (13) of the slide and/or of the shaft component. An independent claim is included for method for improvement of surgical instrument.
