Assembly method and a screwdriving tool and screw kit

Abstract

An assembly method, a screwdriving tool and a screw kit for screwing a screw into an internal thread of a medical instrument to connect two branches of the instrument to each other so that the branches are pivotable relative to each other. The method includes: impressing a punch geometry into a screw head of the screw by applying an axial compressive force to the screw by the screwdriving tool, and rotating the screwdriving tool relative to the instrument about a screw longitudinal axis to transmit a torque in a positively locking manner from the screwdriving tool to the screw via the impressed punch geometry and to screw the screw into the internal thread.

Dependencies are inferred from the claim text.