Patent ID: 7682399
Filing Date: 2010-03-23
Classification: A61F

Abstract:
1. An acetabular cup assembly for a prosthetic hip joint comprising: an outer shell for attachment to the acetabulum, the outer shell having an inner surface, an outer periphery, and at least one radially extending shell extension with first and second shell extension apertures, the shell extension apertures designed to receive first fasteners for fixing the outer shell to bone; a bearing insert; and an adaptor having an outer surface for engaging the inner surface of the outer shell, an inner surface for receiving the bearing insert, and at least one radially extending adaptor extension with first and second adaptor extension apertures, the adaptor extension apertures extending beyond the outer periphery of the outer shell and designed to receive second fasteners for fixing the adaptor to bone, wherein the first adaptor extension aperture extends radially further than the second adaptor extension aperture.