Antibacterial wound dressing
US8828424B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2002 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Apr 6, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An antibacterial wound dressing is based on, or derived from, gel-forming fibres such as carboxymethyl cellulose or alginate fibres having silver ions linked thereto at some but not all of the exchangeable sites such that the distribution of silver ions over the exchangeable sites is substantially uniform. The silvered fibres for the wound dressing can be prepared by contacting an assembly of precursor gel-forming fibres having exchangeable sites under conditions which do not cause irreversible gelling of the fibres with an amount of a solution containing silver ions so as to link silver ions at some but not all of the exchangeable sites, the whole of the assembly of precursor gel-forming fibres being contacted essentially simultaneously with the entire solution containing silver ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.