Patent ID: 7485148
Filing Date: 2009-02-03
Classification: A61B,A61F

Abstract:
1. An acetabular component prosthesis adapted for affixation in a recess in a pelvis, comprising: a cup shell having a generally convex outer surface adapted to be in contact with the bone in use, a generally concave inner surface opposite the outer surface, and a rim joining the outer and inner surfaces; at least two pair of adjacent generally planar flanges extending from the outer surface of the cup adjacent the rim of the cup and angled at an angle θ measured radially between a plane of the rim and the respective flange, one flange of each pair being at an angle α measured tangentially between a plane extending across an apex of the flanges and the respective flange, wherein the angle α of one flange of each pair is equal and opposite the angle α of the other flange of the respective pair and in a range from 10° to 40°; and an aperture in each flange adapted for receiving a fastener to fix the cup in the recess in the pelvis.