Anti-microbial coating for medical devices
First Claim
1. A modified material comprising:
- one or more metals in a form characterized by sufficient atomic disorder such that the material, in contact with a solvent for the material, releases atoms, ions, molecules or clusters containing at least one metal at an enhanced rate relative to its normal ordered crystalline state.
3 Assignments
0 Petitions
Accused Products
Abstract
Anti-microbial coatings and method of forming same on medical devices are provided. The coatings are formed by depositing a biocompatible metal by vapour deposition techniques to produce atomic disorder in the coating such that a sustained release of metal ions sufficient to produce an anti-microbial effect is achieved. Preferred deposition conditions to achieve atomic disorder include a lower than normal substrate temperature, and one or more of a higher than normal working gas pressure and lower than normal angle of incidence of coating flux. Anti-microbial powders formed by mechanical working to produce atomic disorder are also provided. The invention extends to other metal coating and powders similarly formed so as to provide enhanced solubility.
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Citations
44 Claims
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1. A modified material comprising:
one or more metals in a form characterized by sufficient atomic disorder such that the material, in contact with a solvent for the material, releases atoms, ions, molecules or clusters containing at least one metal at an enhanced rate relative to its normal ordered crystalline state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 34, 35, 36, 37, 38, 40, 42, 43)
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10. A method of forming a modified material containing one or more metals, said method comprising:
creating atomic disorder in the material under conditions which limit diffusion such that sufficient atomic disorder is retained in the material to provide release of atoms, ions, molecules or clusters of at least one of the metals into a solvent for the material at an enhanced rate relative to its normal ordered crystalline state. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 39, 41, 44)
Specification