An orthopaedic human skeletal bone demonstration aid for demonstrating surgical orthopaedic techniques comprises a facsimile human skeletal bone having two joint portions and interconnected by an elongate hollow shaft. The facsimile bone comprises two separable component parts, each consisting of one...http://www.google.de/patents/US5607311?utm_source=gb-gplus-sharePatent US5607311 - Orthopaedic human skeletal demonstration aids
