Hip capitulum cap for a hip joint prosthesis

摘要

A hip capitulum cap for a hip joint prosthesis is disclosed wherein the cap is shaped substantially in the form of half a hollow sphere. The inner spherical surface of the sphere is provided with an uneven contact surface comprising one or more ribs. An opening is disposed through the cap preferably at the vertex thereof and is smoothly enlarged at its intersection with the inner and outer surfaces of the cap.