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US 8,309,161 B2Granted
Aluminum oxide coated implants and components
AssigneeDePuy Products, Inc.
InventorsRonald Overholser, Bryan Smith
Life of this patent
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Abstract
The invention provides a medical implant device or component thereof comprising a metal substrate, an intermediate coating, and an outer coating of aluminum oxide, as well as a method of making such a medical implant device or component thereof.
Claims9
A method of making a medical implant device or component thereof, the method comprising:
- (i) providing a medical implant device or component thereof that comprises a metal substrate other than steel, the substrate comprising a surface,
- (ii) applying an intermediate coating of a material other than aluminum oxide to the substrate surface, the intermediate coating having a thickness of 1 μm to 10 μm, and
- (iii) depositing an outer coating of α-aluminum oxide by physical vapor deposition at a temperature between 500° C. and 600° C. onto at least a portion of the intermediate coating.
Dependencies are inferred from the claim text.