Patent ID: 8257444
Filing Date: 2012-09-04
Classification: A61F

Abstract:
1. An implant for use with at least one of first and second joint defining bones, comprising: a plug shaped body comprising at least one of a plastic or plastic/metal composite material, said body having a three dimensional shape and including a first exposed and joint surface defining layer and an inner most layer exhibiting a perimeter enclosing portion configured for mounting over a reconditioned perimeter of the bone; said inner most layer further including a roughened contacting portion extending therefrom, configured for being inserted within and simultaneously contacting an inner facing wall surface of the bone and contacting marrow and, in combination with said perimeter enclosing portion, engaging said body to the reconditioned bone; and said body further having at least one intermediate layer exhibiting a hardness less than either of said exposed layer and said inner most layer such that, upon mounting said body to the joint defining bone, said body providing the dual features of dynamic cushioning support and external wear resistance.