Osmotic Wound Vacuum System
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United States of America Patent
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Issued Date -
Dec 13, 2012
app pub date -
Aug 22, 2012
filing date -
Sep 8, 2003
priority date (Note) -
Abandoned
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Abstract
A negative pressure wound therapy (NPWT) system creates and maintains a sub-atmospheric pressure within a sealed wound environment for the purpose of healing wounds. The NPWT system includes a wound interface material, a housing, an osmotic membrane, and an evacuation port. The wound interface material contacts a wound region and absorbs exudate from the wound region. The housing defines a cavity in an interior space of the housing. The osmotic membrane is coupled to the wound interface material to transfer a fluid of the exudate from the wound interface material to the cavity of the housing. The evacuation port is also coupled to the wound interface material to facilitate passage of a gas out of the wound interface material to create a negative pressure at the wound region.
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