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US 2006/0052880 A1Published application
Plasma sprayed porous coating for medical implants
AssigneeSmith & Nephew, Inc.
InventorsRobert Brosnahan, Randy Fesmire, Harsh Gupta, Daniel Heuer, Gordon Hunter, Vivek Pawar
Life of this patent
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Abstract
A prosthesis having an oxidized zirconium surface and a porous textured surface is described. A major advantage of the prosthesis is increased service life. Additionally, a process of manufacturing the prosthesis is described.
Claims30
A medical implant comprising:
- a first component having a bearing surface;
- a second component having a counter-bearing surface adapted to cooperate with the bearing surface;
- wherein at least one of said first component or said second component comprises zirconium or zirconium alloy;
- a surface of oxidized zirconium on at least a portion of said first component, on at least a portion of said second component, or on at least a portion of both said first component and said second component;
- and,
- a porous, plasma sprayed coating on at least a portion of said surface of oxidized zirconium.
3 more elements
A medical implant comprising:
- at least one component comprising:
- a substrate comprising zirconium or zirconium alloy;
- a surface of oxidized zirconium on at least a portion of said component;
- and,
- a porous, plasma sprayed coating on at least a portion of said surface of oxidized zirconium.
2 more elements
A medical implant comprising:
- a first component having a bearing surface;
- a second component having a counter-bearing surface adapted to cooperate with the bearing surface;
- wherein at least one of said first component or said second component comprises zirconium or zirconium alloy;
- a surface of oxidized zirconium on at least a portion of said first component, on at least a portion of said second component, or on at least a portion of both said first component and said second component;
- and,
- a porous, plasma sprayed coating on at least a portion of said first component or said second component or both said first component and said second component.
3 more elements
A method for manufacturing a medical implant having an oxidized zirconium surface and a porous coating comprising the steps of:
- forming a medical implant wherein at least a portion of said medical implant comprises zirconium or zirconium alloy,
- applying a porous coating to at least a portion of said medical implant by plasma spray;
- and,
- oxidizing said medical implant comprising a zirconium or zirconium alloy to form a surface of oxidized zirconium.
1 more element
A method for manufacturing a medical implant having a porous oxidized zirconium surface comprising the steps of:
- forming said medical implant;
- applying a porous coating comprising zirconium or zirconium alloy to at least a portion of said medical implant by plasma spraying a material comprising zirconium or zirconium alloy;
- and,
- oxidizing said porous coating of zirconium or zirconium alloy to form a surface of oxidized zirconium.
1 more element
Dependencies are inferred from the claim text.