Method for rendering a substrate surface antithrombogenic and/or anti-infective
US5322659A · kind A · utility
27Cited by
15References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1990 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Sep 21, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method to render a medical article antithrombogenic and/or anti-infective includes coextruding a base polymer with a hydrophilic laminating polymer having dispersed therein a quarternary salt complexing agent and steeping the extruded article in an aqueous solution of an antithrombogenic and/or anti-infective reagent whereby the reagent is absorbed along with water by the hydrophilic polymer and reacts with the complexing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.