Reduced pressure treatment system having a dual porosity pad
US7758554B2 · kind B2 · utility
102Cited by
113References
20Claims
0Family size
Assignee
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Key dates
| Filing date | May 11, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jan 10, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3382
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wound closure apparatus having a porous pad adapted to be fluidly connected to a vacuum pump. The pad is placed over or within a tissue site, and the vacuum pump may be activated to draw air and exudates from the tissue site. The pad contains multiple pore sizes to prevent granulation tissue from migrating into the pad as reduced pressure treatment is applied. The pad has an outer surface adjacent the wound with pore sizes of a diameter of approximately 100 microns or less to prevent tissue from growing into the pad and is treated for biocompatibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.