Surgery: splint – brace – or bandage – Bandage structure – Skin laceration or wound cover
Patent
1997-06-16
1998-12-08
Lilling, Herbert J.
Surgery: splint, brace, or bandage
Bandage structure
Skin laceration or wound cover
21050025, 21050029, 210655, 435101, 4352521, 435823, 424445, 424488, 602 43, 602 49, 536 56, 604289, 604304, 604308, 604374, A61F 1300, B01D 3918, A61L 1528
Patent
active
058462139
ABSTRACT:
Cellulose films useful as wound and bum dressings are prepared from a solution of cellulose produced by Acetobacter xylinum in a stirred tank. The materials of this invention comprise a film of microbially produced cellulose, particularly cellulose produced from the culture of Acetobacter xylinum in a stirred tank. The film is made by dissolving the cellulose in a solvent system comprising dimethylacetamide and lithium chloride, casting the resulting solution onto a flat surface and regenerating the film in a gelation bath. Humectant is incorporated into the film by solvent exchange. The film is then sterilized and packaged for long term storage. These films are strong and elastic having mechanical properties superior to plant derived cellulose membranes and similar to that of the human skin and are useful as wound dressings.
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Lilling Herbert J.
Schumacher Lynn C.
The University of Western Ontario
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