Plasma gas discharge treatment for improving the biocompatibility of biomaterials
US4656083A · kind A · utility
235Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Mar 11, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2525
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of treating articles to improve their biocompatibility is disclosed. A substrate material is positioned within a reactor vessel and exposed to plasma gas discharge in the presence of an atmosphere of an inert gas and then in the presence of an organic gas, such as a halocarbon or halohydrocarbon gas, capable of forming a thin, biocompatible surface covalently bonded to the surface of the substrate. The method is particularly useful in the treatment of vascular graft materials to improve their biocompatibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.