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US 2003/0203012 A1Published application
Microbial cellulose wound dressing for treating chronic wounds
AssigneeXylos Corporation
InventorsGonzalo Serafica, Richard Mormino, Gerry Ann Oster, Kevin E. Lentz, Kevin P. Koehler
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Abstract
The invention relates to a wound dressing comprising a microbial-derived cellulose for treatment of specific types of chronic wounds, including pressure sores, venous and diabetic ulcers. The wound dressing is capable of donating liquid to dry substrates is also capable of absorbing exudating wounds.
Claims24
A method for treating chronic wounds comprising:
- applying a nonpyrogenic, biocompatible microbial-derived cellulose dressing to the wound site;
- and
- changing the dressing from twice daily to weekly,
- wherein said microbial-derived cellulose dressing comprises from about 1.5% to about 9% cellulose by weight.
1 more element
A microbial-derived cellulose dressing comprising about 1.5 to about 9 wt. % of cellulose.
A method for preparing a microbial-derived cellulose dressing comprising:
- statically producing a microbial cellulose pellicle using Acetobacter xylinum;
- isolating the pellicle with a cellulose to water ratio in the range of about 1:100 to about 1:500;
- and drying the isolated pellicle to a cellulose content of 1.5 to 9 wt. %.
A kit comprising:
- a) a microbial-derived cellulose comprising about 1.5 to about 9 wt. % of cellulose;
- b) a moisture proof package containing said microbial-derived cellulose;
- and
- c) instructions for applying the microbial-derived cellulose to a chronic wound.
1 more element
Dependencies are inferred from the claim text.