Occlusive pressure-reducing wound dressing
US5356372A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Dec 1, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00885
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An occlusive, pressure-reducing wound dressing with a multi-layer laminate construction providing one easy-to-apply dressing. The occlusive pressure-reducing dressing includes an occlusive, wound-contacting layer made of a biologically compatible polymer. A pressure-reducing layer is joined at a bottom surface to the occlusive layer. The pressure-reducing layer is comprised of a soft, air-containing material such as a foam or an air-entrapping film which has a top surface shaped to provide a progressive rate of resistance to compressive force applied to the pressure-reducing layer and which allows the pressure-reducing layer to conform to curved body surfaces. The occlusive portion of the dressing therefore provides a moist environment and a barrier against infection while the pressure-reducing portion or component minimizes interaction between the wound and any supporing surface in contact therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.