Patent ID: 9289306
Filing Date: 2016-03-22
CPC Classification: A61B,A61F

Claim Text:
1. An arthroplasty prosthesis comprising: an articular surface; and a bone-facing side opposite the articular surface; wherein the bone-facing side comprises a concave arrangement of at least three planar surfaces, wherein the at least three planar surfaces converge toward the articular surface, wherein the first planar surface intersects the second planar surface along a first line, wherein the second planar surface intersects the third planar surface along a second line, wherein the third planar surface intersects the first planar surface along a third line, wherein the first, second, and third lines converge together as the first, second, and third lines approach the articular surface, wherein the at least three planar surfaces intersect the articular surface to establish an articular margin of the prosthesis, wherein the articular margin includes an indentation located where a selected one of the at least three planar surfaces intersects the articular surface.