Surface modification of medical implants
First Claim
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1. A method of making non-uniform titanium surface, comprising:
- exposing a titanium surface to a first plasma effective to remove an oxide layer;
providing a second plasma comprising a reactive plasma gas, the reactive plasma gas comprising an active etching species and a sputtering ion, said second plasma effective, to remove titanium from the titanium surface and introduce surface porosity; and
exposing the titanium surface to the second plasma whereby a non-uniform surface is obtained.
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Abstract
A method of obtaining a porous titanium surface suitable for medical implants is provided. The titanium surface is exposed to a plasma comprising a reactive plasma gas, the reactive plasma gas comprising an active etching species and a sputtering gas. The plasma conditions are effective to modify the titanium surface and provide surface porosity. The plasma conditions are effective to non-uniformly etch and sputter the titanium surface.
175 Citations
20 Claims
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1. A method of making non-uniform titanium surface, comprising:
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exposing a titanium surface to a first plasma effective to remove an oxide layer; providing a second plasma comprising a reactive plasma gas, the reactive plasma gas comprising an active etching species and a sputtering ion, said second plasma effective, to remove titanium from the titanium surface and introduce surface porosity; and exposing the titanium surface to the second plasma whereby a non-uniform surface is obtained. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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2. A method of making a non-uniform titanium surface, comprising:
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exposing a titanium surface to a first plasma effective to remove an oxide layer; providing a second plasma comprising a reactive plasma gas, the reactive plasma gas comprising an active etching species and a sputtering ion, said second plasma effective to non-uniformly etch and non-uniformly sputter a titanium surface; and exposing the titanium surface to the second plasma whereby a non-uniform surface is obtained.
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Specification