Patent ID: 7531003
Filing Date: 2009-05-12
Classification: A61B,A61F

Abstract:
1. A prosthetic wrist implant comprising: (a) a radial component including a base member having an upper bearing surface and a lower surface having an elongated radial stem extending therefrom for fixation to a radius bone; (b) a carpal component including a substantially planar base member having an upper surface having an elongated carpal post member for fixation to one or more carpal bones, an outer edge, and a lower surface with at least one socket protrusion extending therefrom; (c) an articulating bearing component for placement between the radial and carpal components, the bearing component having an upper surface defining at least one socket recess having a continuous inner circumference and a lower bearing surface for cooperative engagement with the upper bearing surface of the radial component; and (d) wherein the socket protrusion of the carpal component is configured for linearly and coaxially engaging the socket recess of the bearing component to minimize rotational and translational movement of the carpal component relative to the bearing component.