Anti-microbial coating for medical devices
US5770255A · kind A · utility
133Cited by
83References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1993 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/931
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Anti-microbial coatings and method of forming same on medical devices. The coatings are formed by depositing a biocompatible metal by physical vapor 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 a lower than normal angle of incidence of coating flux.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.