Patent ID: 7220283

Claim:
A prosthetic device, comprising: a first component including a female recess; and a second component including a male extension, which male extension has disposed on at least a part of an exterior surface a plurality of grooves and a plurality of ridges; wherein the female recess is defined by a recess wall and the female recess tapers from wider to narrower in a direction moving from an exterior surface of the first component towards an interior of the first component; wherein at least part of the exterior surface of the male extension which has disposed thereon the plurality of grooves and ridges tapers from wider to narrower in a direction moving towards a first end of the male extension; wherein the plurality of grooves are disposed adjacent one another such that the ridges are formed between the grooves; wherein each ridge has a first ridge face formed by a respective groove and a second ridge face formed by a respective groove; wherein the first ridge face and second ridge face of each ridge meet at a ridge apex; and wherein the female recess is configured to receive at least part of the exterior surface of the male extension which has disposed thereon the plurality of grooves and ridges; and wherein the male extension and the female recess are sized such that, when the female recess receives the male extension, the male extension and the female recess are directly mated together via an interference fit.