Patent ID: 8308810
Filing Date: 2012-11-13
Classification: A61F

Abstract:
1. An acetabular prosthesis assembly comprising: an acetabular cup having an outer surface, an inner surface and an upper rim extending between the outer surface and the inner surface, the acetabular cup having a cup connection portion including an inner wall offset from an outer wall by a groove formed on an upper face of the upper rim, wherein an undercut is formed in the groove on one of the inner wall or outer wall; and a first liner having an outer cup engaging surface and a liner connection portion that extends from a flange of the first liner, the liner connection portion having a finger that is received by the groove that selectively couples the liner connection portion with the cup connection portion in an assembled position; wherein the first liner includes a protrusion extending from the finger that nests in the undercut formed in the groove of the acetabular cup in the assembled position; wherein the cup connection portion and liner connection portion include a plurality of alternating inset and outset portions that cooperatively mate in the assembled position.