Patent ID: 9717599
Date: 2017-08-01
CPC Classifications: A61B,A61F

Claim:
1. A radiocarpal joint replacement apparatus for implantation in a wrist of a subject, the apparatus comprising: a radial member configured to be affixed to a portion of an end of the radial bone proximal to the wrist, the radial member including a fixture to be affixed to a cortex of the radial bone over a longitudinal aspect of the radial bone and a radial resurfacing plate having a substantially concave surface configured to be located at the end of the radial bone; a carpal capitate bone insert comprising flexible petals and configured to be inserted and affixed only to the carpal capitate bone; and a bulbous component comprising a first convex head and a second convex head, substantially opposite each other and connected by a neck between the first convex head and the second convex head, wherein the carpal capitate bone insert is configured to be flexibly coupled to the first convex head of the bulbous component by snapping the flexible petals into the neck of the bulbous component, and wherein the radial resurfacing plate of the radial member with the concave surface is configured to be operably coupled to the second convex head of the bulbous component so as to allow radial freedom of motion of the carpal capitate member with respect to the radial resurfacing plate after the implantation.