Patent ID: 8096992

Claim:
An orthopaedic reamer, comprising: a reamer including a fixed at least partially hemispherical shell including a rotational axis having an active cutting surface and having a base, said shell having three cutouts each extending to said base and significantly interrupting said cutting surface to form a discontinuous rim defining three active cutting surfaces and reduce the profile of said reamer, as viewed in a direction parallel to said rotational axis wherein said three active cutting surfaces are substantially identical to and fixed relative to one another; a driver attachment connected to said base, said driver attachment including a diametral bar including a first end, a second end and a centering disk located between said first end and said second end and approximately centered on said rotational axis, said driver attachment further including a first arm and a second arm directly connected to said first end, and a third arm directly connected to said second end, each of said first arm, said second arm and said third arm directly connected to said base, wherein said diametral bar, said first arm, said second arm and said arm comprise a kedge anchor-shape.