Patent ID: 7842094
Filing Date: 2010-11-30
Classification: A61F,A61L

Abstract:
1. An acetabular cup for cemented implantation in an acetabulum comprising: a shell having a recess with a bottom surface therein forming an opening open to an outer surface of the shell and having an enlarged portion spaced from the outer surface having a diameter greater than the diameter of the opening and including the bottom surface; and an insert for insertion into the recess in the outer shell to be held loosely therein, the insert having a height greater than a depth of the recess and having a solid portion and a bifurcated portion having at least two side openings, a base of the bifurcated portion having an outwardly extending flange for insertion into the enlarged portion of the recess the base of the bifurcated portion including a plurality of spacers contacting the bottom surface to form a gap between the base of the bifurcated portion and the recess bottom surface for ingress of bone cement.