US Patent:
20090192610, Jul 30, 2009
Inventors:
Kirt L. Case - Warsaw IN, US
Oludele O. Popoola - Granger IN, US
Robby Kissling - Warsaw IN, US
Brion R. Mimnaugh - North Webster IN, US
Archie W. Newsome - Mentone IN, US
Clarence M. Panchison - Warsaw IN, US
Dirk L. Pletcher - Walkerton IN, US
Randy L. Schlemmer - Bremen IN, US
Zhibin Fang - Warsaw IN, US
Juan Vivanco - Madison WI, US
Alicia Rufner - Columbia City IN, US
International Classification:
A61F 2/28
A61F 2/32
B29D 31/505
US Classification:
623 1611, 623 2353, 623 2221, 156242
Abstract:
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.