Patent ID: 8974458
Filing Date: 2015-03-10
Classification: A61B,A61F

Abstract:
1. A reamer for use in performing arthroplasty, the reamer comprising: a first cutting structure having an inner concave surface that defines a first cavity and terminates distally in a generally circular leading edge, the inner concave surface including a first cutting feature that is spaced apart from the leading edge; an elongate member extending from the inner concave surface through the first cavity and toward the leading edge, the elongate member including a second cutting feature, the second cutting feature being located at least partially within the first cavity; and a second cutting structure secured to said elongate member and positioned within the first cavity, the second cutting structure extending outwardly from the elongate member toward the inner concave surface and including a third cutting feature, wherein the first cutting feature comprises a plurality of openings defined in the first cutting structure that extend through the inner concave surface, each of the openings having a cutting edge.