SURGICAL INSTRUMENT

摘要

Surgical instrument (10) for positioning a bone plate fixing device (12) comprises a first bone contact element (14), a second bone contact element (20), a first tool element (34), and a second tool element (52, 54) with a transport device for stepwise movement of a connecting element (18) with the second tool element away from the first tool element. The second tool element has several recesses for a protrusion (26) on the connecting element. During each transport step the protrusion engages at least partly in a recess in an engagement position and in this is immovably held on the second tool element in the longitudinal direction (48). From one transport step to another the protrusion engages in a recess arranged in the proximal direction on the second tool element. Preferred Features: The protrusion is inserted in a form-locking manner into the recesses.