cotile hip, with means of positioning in the cavita'acetabolare.

摘要

The present invention relates to a hip cotyl, with means for properly arranging it in the acetabulum cavity,comprising a spherical body (1) having a plurality of openings (2) provided,on the convex surface of the body (1),with projecting lugs (3) to be anchored in the acetabulum cavity,on the concave surface of the body there being further applied a polyethylene insert (22) adapted to operate as a contact surface for the rotation of the head portion of a stem to be inserted into the femur.