Medical instruments that exhibit surface lubricity when wetted
US5670558A · kind A · utility
470Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Jul 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This invention provides a medical instrument having on a surface a layer (surface lubricating layer) that forms a hydrogel when wetted and that is composed of an insolubilized water-soluble or water-swellable polymer having a reactive functional group in the molecule. The surface having outstanding surface lubricity and, optionally, the ability to prevent the formation of thrombi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.