Therapeutic wound dressings with exudate-dependent enlargement of apertures
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United States of America Patent
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N/A
Issued Date -
Dec 2, 2004
app pub date -
Jul 20, 2004
filing date -
Sep 27, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A wound dressing comprising: a wound contacting sheet having a wound facing surface and a back surface opposite the wound facing surface, and having apertures therein that open or enlarge in the presence of wound exudate; and a plurality of particles comprising one or more therapeutic agents located behind the back surface of the back sheet, wherein the particles are able to pass through the apertures to the wound facing surface of the sheet when the apertures are opened or enlarged in the presence of said wound exudate.
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