HYDROGEL WOUND DRESSING AND ITS METHOD OF PREPARATION
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
May 22, 2009
filing date -
May 28, 2008
priority date (Note) -
Abandoned
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Abstract
An improved hydrogel wound dressing and its preparation is disclosed. The ingredients used in the dressing are PAAS of 20˜30 wt %, PVA of 2˜6 wt % and water of 64˜78 wt %. The hydrogel wound dressings were formed by dissolution, casting films, radiation synthesis and sterilization. Compared with conventional hydrogel dressings the improved dressings displayed an enhanced degree of swelling. Cell growth factors may be incorporated into the dressings to be released slowly in the wound.
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