Medicaments containing gelatin cross-linked with oxidized polysaccharides
US6132759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Oct 27, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P27/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a wound dressing comprising a biopolymer matrix comprising gelatin cross-linked with an oxidized polysaccharide. Preferably said oxidized polysaccharide comprises an oxidized dextran or an oxidized xanthan. Preferably said matrix is in the form of a hydrated film, a hydrated or dry foam, dry fibers which may be fabricated into a woven or non-woven tissue, hydrated or dry microbeads, dry powder; or said matrix is covered with a semipermeable film, so as to control the humidity of the wound covered with the dressing, with the permeability chosen so as to maintain this humidity within a therapeutically optimal window. A polysulfated polysaccharide with a M.W. greater than 30,000 kDa is mechanically entrapped during the formation of said matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.