Non-metal Ball-headed Hip Joint Prosthesis
OwnerDiange Zhou, Nian Liuinventors
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Abstract
This invention revolves around medical devices, especially the non-metal ball-headed hip joint prosthesis, including acetabular cup, non-metal femoral head and femoral stem prostheses. In this invention, the acetabular cup is combined with the lining as a metal cup, and the traditional metal or ceramic ball head is replaced by non-metal femoral head prosthesis with metal inner core.
Claims7
The non-metal ball-headed hip joint prosthesis includes acetabular cup, non-metal femoral head and femoral stem prostheses. The acetabular cup prosthesis has an inner spherical surface, which matches the external spherical surface of non-metal femoral head prosthesis. The non-metal femoral head prosthesis which moves within the acetabular cup prosthesis is equipped with a tapered inner core. A tapered locked connection will take shape when the femoral stem prosthesis is inserted into the tapered inner core of the non-metal femoral head prosthesis.
Dependencies are inferred from the claim text.