Patent ID: 8623092
Filing Date: 2014-01-07
Classification: A61F

Abstract:
1. A joint prosthesis for mounting in a first bone and presenting a prosthetic joint surface for engaging an opposing joint surface of a second bone, the joint prosthesis comprising: a sleeve which is adapted for partial disposition in an opening formed in the first bone, wherein the sleeve comprises a central lumen, a horizontally-extending rib and a longitudinally-extending rib; a center adapter which is adapted for disposition within the sleeve, wherein the center adapter comprises an elongated shaft sized for partial disposition within the central lumen of the sleeve, a plurality of horizontally-extending slots for selectively receiving the horizontally-extending rib of the sleeve, and a plurality of longitudinally-extending slots for selectively receiving the longitudinally-extending rib of the sleeve; and a prosthetic joint surface mounted to the center adapter; wherein the disposition of the center adapter is adjustable, both longitudinally and rotationally, relative to the sleeve, so that the disposition of the prosthetic joint surface is adjustable, both longitudinally and rotationally, relative to the opposing joint surface of the second bone, wherein the center adapter is locked against longitudinal motion vis-à-vis the sleeve when the horizontally-extending rib of the sleeve is disposed in one of the horizontally-extending slots of the center adapter, and further wherein the center adapter is locked against rotational motion vis-à-vis the sleeve when the longitudinally-extending rib of the sleeve is disposed in one of the longitudinally-extending slots of the center adapter.