Negative pressure wound dressing
US11331221B2 · kind B2 · utility
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164References
29Claims
0Family size
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Key dates
| Filing date | Dec 27, 2019 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jul 13, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00174
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dressing for negative pressure wound therapy includes an absorbent layer comprising a gelling absorbent material for absorbing exudate, a peripheral adhesive skin contact layer comprising a hydrocolloid adhesive and defining a window through which the absorbent layer is able to contact a wound, and a cover layer that is water impermeable and air permeable. The cover layer defines an aperture to be used with a pump assembly to provide negative pressure to a wound site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.