公开(公告)号：AU2008236996A1

公开(公告)日：2008-10-16

申请号：AU2008236996

申请日：2008-04-10

Applicant: ZIMMER INC

Inventor： GSELL RAY ,  PLETCHER DIRK ,  SCHNEIDER WERNER ,  KNIGHT JOHN ,  BRINKERHUFF HALLIE E ,  RUFNER ALICIA ,  ROWE TONI

IPC: A61L27/50 ,  A61L27/16

Abstract: An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.