Intrakorporaler Knochenmarknagel

The rotatable socket acts positively on a threaded spindle. The threaded spindle is connected to a transport component (2) connectable to a bone segment separated from one fracture end and arranged between two bone parts. The transport component is movable along the longitudinal axis in the sleeve (1) by rotation of the rotatable socket (9). The fixture of the bone segment separated from one fracture end is by a bone screw (E) fitted in a longitudinal guide in the sleeve. The threaded spindle and a threaded socket (3) accommodated and fixed in the sleeve have different threads and are exchangeable. A tooth component (5) which has interengaging teeth (4a,4b) engages on both sides on the sleeve and on a driver (6). USE/ADVANTAGE - The bone marrow nail does not influence the healing process negatively through the formation of a tissue bulge and the original length of the broken bone, with improved healing conditions, is further producible.