Patent ID: 7371261

Claim:
A device for use in surgical procedures involving arthroplasty, the device comprising: a socket member comprising: a first surface adapted to receive a counter component of a joint, and a bone engaging surface comprising: a first surface portion that extends away from a circumferential join with the first surface; and a second surface portion that extends away from a the first surface portion to an extremity; wherein the first surface portion is configured such that a cross-sectional diameter of the first surface portion decreases at a first rate as the first surface portion extends away from the circumferential join with the first surface, and the second surface portion is configured such that a cross-sectional diameter of the second surface portion decreases at a second rate, the second rate being different from the first rate, and wherein the first surface portion and the second surface portion are arranged relative to each other such that the bone engaging surface is devoid of a step or an edge at a meeting loci of the first surface portion and the second surface portion.