Patent ID: 8048162
Filing Date: 2011-11-01
Classification: A61F

Abstract:
1. A proximal radioulnar joint prosthesis, comprising: an ulnar brace member having an upper end and a lower end, and including a substantially flat, downwardly-extending elongated portion defining an elongated abutment surface having a shape which conforms to the outer surface of the ulna bone near its proximal end; said ulnar brace member including a projection from said downwardly-extending elongated portion and defining a recess between the projection and the downwardly-extending elongated portion; wherein said projection has a curved outer surface portion and defines a curved radius-bone guide surface fixed relative to said elongated portion and positioned to be aligned with and to receive and support the proximal end of the radius bone for rotation relative to the ulnar brace member when the elongated portion is abutting and mounted on the proximal end of the ulna bone; means for mounting said ulnar brace member on a human ulna near the proximal end of the ulna such that the recess will receive the rear edge of the proximal radial notch of the ulna and the curved outer surface portion of the projection will fit into the proximal radial notch of the ulna while leaving the proximal ulna intact; and said ulnar brace member further including means for transmitting axial loads from the radius to the humerus.