USE OF Ti and Nb CEMENTED IN TiC IN PROSTHETIC JOINTS
AssigneeDimicron, Inc.
InventorsBill J. Pope, Richard H. Dixon, Jeffery K. Taylor, Clayton F. Gardinier, Troy Medford, Dean C. Blackburn, Victorian Carvajal, David P. Harding
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Abstract
An improved composition of titanium sintered titanium carbide is provided. The composition provides an improved degree of strength and toughness and improved compatibility with medical imaging. The composition provides good compatibility with sintered polycrystalline diamond, achieving a good mechanical fit in terms of the combined compressibility and thermal expansion during the sintering process to minimize stress or cracking between the substrate and the diamond layer.
Claims16
A component for a prosthetic joint comprising:
- a sintered carbide substrate comprising:
- titanium carbide;
- a sintering metal selected from the group consisting of titanium, niobium, and tanalum;
- an articulation surface formed on the substrate;
- and
- a structure for attaching the substrate to a bone.
A component for a prosthetic joint comprising:
- a sintered carbide substrate comprising:
- titanium carbide having a weight comprising between about 70 and 90 of the substrate;
- titanium sintering metal having a weight comprising between about 10 and about 30 percent of the substrate;
- an articulation surface formed on the substrate;
- and
- a bone attachment surface for attaching the substrate to a bone.
Dependencies are inferred from the claim text.