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US 7,569,176 B2Granted
Method for making a sintered superhard prosthetic joint component
AssigneeDiamicron, Inc.
InventorsBill J. Pope, Richard H. Dixon, Jeffery K. Taylor, Clayton F. Gardinier, Troy Medford, Dean C. Blackburn, Victoriano Carvajal
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Abstract
Use of Ti and Nb cemented in TiC in prosthetic joints, such as prosthetic joint components made from sintered superhard materials.
Claims39
A method for making a sintered superhard prosthetic joint component comprising:
- obtaining a cemented TiC substrate, said substrate comprising TiC which is cemented with a carbide forming agent selected from the group consisting of Ti, Nb and a combination of Ti and Nb,
- placing a diamond table adjacent at least a portion of said substrate,
- said substrate and said diamond table being configured to achieve a shape and dimension desirable for use in a prosthetic joint component, and
- placing said substrate and diamond table in a press and exposing said substrate and diamond table to high pressure and high temperature in order to cause sintering of said diamond table and said substrate in order to form a sintered polycrystalline diamond compact joint component that includes a diamond table on a substrate.
1 more element
A method for making a sintered superhard prosthetic joint component comprising:
- obtaining a cemented TiC substrate ball, said ball being cemented with a carbide forming agent selected from the group consisting of Ti, Nb and combinations of Ti and Nb,
- placing said substrate in a can with diamond between said can and said ball, and
- placing said can in a press and exposing said can and its contents to high pressure and high temperature in order form a joint component that includes a diamond table on a substrate.
A method for making a sintered superhard prosthetic joint component comprising:
- forming a prosthetic joint, the joint including:
- a substrate comprising a carbide and a carbide forming agent selected from the group consisting of Ti, Nb, and mixtures of Ti and Nb;
- and
- a layer of diamond particles placed adjacent the substrate;
- and
- wherein the substrate and the diamond layer are configured to achieve a shape and dimension desirable for use in a prosthetic joint component, and
- placing the prosthetic joint in a press and exposing the joint to high pressure and high temperature in order to cause sintering of the diamond and the substrate in order to form a sintered polycrystalline diamond compact joint component that includes a diamond table on a substrate.
4 more elements
A method for forming a prosthetic joint comprising:
- forming a first joint component by:
- forming a substrate, the substrate comprising a mixture of a carbide and a carbide forming element selected from the group consisting of Ti, Nb, and mixtures of Ti and Nb;
- forming a diamond table adjacent the substrate;
- and
- sintering the diamond table to the substrate under high pressure and temperature;
- wherein the diamond table is shaped to form a first articulation surface on the surface of the diamond table;
- forming a second joint component by:
- forming a substrate, the substrate comprising a mixture of a carbide and a carbide forming element selected from the group consisting of Ti, Nb, and mixtures of Ti and Nb;
- forming a diamond table adjacent the substrate;
- and
- sintering the diamond table to the substrate under high pressure and temperature;
- wherein the diamond table is shaped to form a second articulation surface on the surface of the diamond table;
- and
- wherein the first articulation surface is configured for sliding interaction with the second articulation surface so as to provide articulation of the prosthetic joint.
11 more elements
Dependencies are inferred from the claim text.