Ball in order to emerge.

摘要

The present invention relates to prosthesis ball joints. The ball joint according to the invention is characterised essentially by the fact that it comprises a female part comprising a shell 4 in which is formed a first hemispherical cavity 5, means 6 for fixing the shell firmly to a supporting bone, a cup 8 delimited by two hemispherical surfaces, one outer surface 9 complementing the surface of the first cavity 5 and one inner surface 10 defining a second cavity 12, the cup being arranged in the first cavity in such a way as to be able to pivot therein, the second cavity being capable of receiving in rotation a head 2 of spherical shape forming the male part of the ball joint. Application to the production of, in particular, hip prostheses or the like. IMAGE