Metal-backed acetabular component of a hip joint prosthesis having a zirconia-toughened alumina insert
OwnerMarc Abouaf, Edward Lilley +4inventors
InventorsMarc Abouaf, Edward Lilley, Daniel Urffer, Bernard Cales, Oh-Hun Kwon, Yves Stefani
Life of this patent
Estimating the term…
Abstract
The present invention relates to an acetabular cup for receiving a substantially spherical hip joint prosthesis head having an outer surface, the cup including: (a) a ceramic component having a socket surface shaped to rotatably receive the outer surface of the head, and (b) a metal backing in which the ceramic component is received, wherein the ceramic component comprises zirconia-toughened alumina, and wherein the ceramic component is interference fit within the metal backing.
Claims5
An acetabular cup for receiving a substantially spherical hip joint prosthesis head having an outer surface, the cup comprising:
- (a) a ceramic component having a socket surface shaped to rotatably receive the outer surface of the head, and
- (b) a metal backing in which the ceramic component is received, wherein the ceramic component comprises zirconia-toughened alumina, and wherein the ceramic component is interference fit within the metal backing.
Dependencies are inferred from the claim text.