Multi-layer dressings, systems, and methods for applying reduced pressure at a tissue site
US8425478B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Aug 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00914
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The illustrative systems, methods, and dressings for applying reduced pressure to a tissue site are presented that involve quickly removing fluids from the tissue site to reduce or avoid maceration of the epidermis. One dressing includes a dressing material for transferring the reduced pressure to the tissue site and a drape covering at least a portion of the dressing material. The dressing material includes a hydrophobic tissue-interface layer adapted to contact the tissue site. The dressing material also includes a manifold adapted to distribute reduced pressure. The manifold may be a hydrophobic layer. The dressing material also includes one or more absorbent layers adapted to absorb liquid from the tissue site via the tissue-interface layer and the manifold. Other aspects are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.