A medical prosthesis for use within the body which is formed of radiation treated ultra high molecular weight polyethylene having substantially no detectable free radicals, is described. Preferred prostheses exhibit reduced production of particles from the prosthesis during wear of the prosthesis, and...http://www.google.com/patents/US20050096749?utm_source=gb-gplus-sharePatent US20050096749 - Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices
