Patent ID: 6607557
Filing Date: 2003-08-19
Classification: A61F

Abstract:
An artificial bone graft implant for use as a replacement for living bone material in surgical procedures requiring the use of bone graft material, the implant comprising:a) a body formed of a biocompatible microporous material adapted to bond to bone, the body configured to be implanted into a prepared site in a patient's bone tissue, the body having a center portion, an outer portion and a pair of opposed outer surfaces defining the body; b) the biocompatible microporous material having a relatively low average porosity in the center portion that gradually changes to a relatively high average porosity in the outer portion; c) wherein the pore size of the center portion of the body allows for a load bearing capacity similar to natural bone and the pore size of the outer portion of the body allows for the ingrowth of bone tissue, the biocompatible microporous material being a calcium phosphate.