Acetabulum implant cup insert for articular prosthesis e.g. hip prosthesis, has metallic shell with lever for avoiding extraction of polyethylene filling, and bosses and depressions for avoiding rotation of filling

摘要

The insert has a metallic shell (1) and a polyethylene filling (14) in an inner space (4) of the shell. The filling is obtained by thermo-compression of a polymer in the space followed by machining to arrange a receptacle (18) for a prosthetic head. The shell has, on the periphery of the space, a lever (7) for avoiding extraction of the filling, and bosses and depressions for avoiding rotation of the filling. An independent claim is also included for an articular prosthesis.