Modifiable, semi-permeable, wound dressing
US5264218A · kind A · utility
1,500Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1991 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Apr 29, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/15
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dressing for wounds or dermal ulcers. The dressing includes a semi-permeable, transparent polyurethane film and a plurality of concentric polyethylene foam rings or disks. Application of foam rings to a semi-permeable thin film permits modification of the moisture/vapor transmission characteristic of the wound dressing which can be adjusted to suit the wound environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.