Composite dressings for improved granulation and reduced maceration with negative-pressure treatment
US11432966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2018 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Dec 26, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/985
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Dressings for tissue treatment with negative pressure and methods of using the dressings for tissue treatment with negative pressure, which may comprise a dressing having at least three layers assembled in a stacked relationship. The first layer may comprise or consist essentially of a polymer film having a plurality of fluid restrictions that are normally unstrained or closed. The second layer may comprise a manifold, and the third layer may comprise or consist essentially of a polymer drape. A fourth layer, which may be coupled to the first layer opposite the second layer, may comprise or consist essentially of a silicone gel having a plurality of apertures. In some examples, the plurality of apertures in the fourth layer may be registered with the fluid restrictions of the first layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.