A compression interlocking system for stabilizing long bone fractures, comprises an elongated intramedullary rod having a proximal end, a distal end and a longitudinal axis, the rod adapted for extending within a bore generally parallel to a longitudinal axis of a long bone from a proximal end of...http://www.google.es/patents/US5743908?utm_source=gb-gplus-sharePatente US5743908 - Bi-directional bi-positional universal dynamic compression device
