Liquid loaded pad for medical applications
AssigneeJohnson & Johnson Patient Care, Inc.
InventorsDavid F. Ring, Wilson Nashed, Thurman Dow
Life of this patent
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Abstract
Liquid loaded pads useful as wound and burn dressings are prepared from pellicles of microbially-produced cellulose obtained, for example, by culturing Acetobacter xylinum. A pellicle having a thickness from about 0.1 to 15 millimeters or greater is processed to replace the culture medium with water or other physiologically compatible liquid. The liquid-loaded pellicle is sterilized prior to its use as a dressing or in other medical applications.
Claims20
A method of producing a liquid loaded pad for medical applications comprising the steps of:
- (a) culturing cellulose-producing microbial cells in a nutrient medium to produce a pellicle of microbially-produced cellulose loaded with the nutrient medium;
- (b) replacing the nutrient medium of the pellicle with a physiologically-acceptable liquid;
- and
- (c) sterilizing the pellicle loaded with said physiologically-acceptable liquid.
A method of producing a liquid loaded pad for medical applications comprising the steps of:
- (a) culturing cellulose-producing microbial cells in a nutrient medium to produce a pellicle of microbially-produced cellulose loaded with said nutrient medium;
- (b) treating said nutrient medium loaded pellicle to remove entrapped microbial cell material;
- (c) replacing the liquid content of said treated pellicle with a physiologically-acceptable liquid;
- and
- (d) sterilizing said pellicle loaded with said physiologically acceptable liquid.
Dependencies are inferred from the claim text.