Zimmer Gmbh

Alicia Rufner

Dirk Pletcher

John Knight

Hallie E Brinkerhuff

Ray Gsell

Werner Schneider

Toni Rowe

Clarence M Panchison

Oludele O Popoola

Kirt L Case

Archie Newsome

Randy Schlemmer

Brion R Mimnaugh

Zhibin Fang

Juan Vivanco

Robby Kissling

Archie W Newsome

Dirk L Pletcher

Randy L Schlemmer

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.

Antioxidant stabilized crosslinked ultra high molecular weight polyethylene for medical device applications

Antioxidant stabilized crosslinked ultra-high molecular weight polyethylene for medical device applications

An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

Method of manufacturing an acetabular component

Orthopedic component of low stiffness

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Columbia City, IN, United States of America

Alicia Rufner