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US 2013/0230640 A1Published application
Ceramic layered medical implant
AssigneeSmith & Nephew, Inc.
InventorsVivek Devidas PAWAR, Shilesh C. JANI, Carolyn L. WEAVER
Life of this patent
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Abstract
A new composition and medical implant made there from comprises a thick diffusion hardened zone, and layered ceramic surface. Orthopedic implants comprising the new composition, methods of making the new composition, and methods of making orthopedic implants comprising the new composition are disclosed.
Claims16
1-22. (canceled)
A method of making a layered ceramic medical implant comprising the steps of:
- forming said medical implant of zirconium or zirconium alloy;
- treating said implant in the presence of ceramic-forming species at temperature of 500 to 1000° C. for greater than 2 minutes;
- and, thereafter treating said implant under a reactive gas at a temperature of 500 to 1000° C.
Dependencies are inferred from the claim text.