Compositions having antithrombogenic properties and blood contact medical devices using the same
US4872867A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1989 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Feb 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2270/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention is a composition having anti-thrombogenic properties, comprising as essential constituent components a polyurethane or polyurethane urea containing polytetramethylene oxide in its main chain, a water soluble and/or water swellable macromolecules, and a silicon-containing compound capable of forming polysiloxane while crosslinking; and a blood contact medical device having such a composition on blood contact surfaces. According to this invention, it is possible to provide on blood contact surfaces a hydrophilic polymer which is excellent in dynamic properties and very rich in the antithrombogenic properties, and the invention can be greatly contributory in the field of blood contact medical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.