Thin film surgical dressing with delivery system
AssigneeMinnesota Mining and Manufacturing Company
InventorSteven B. Heinecke
Life of this patent
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Abstract
A pressure sensitive adhesive composite with a delivery system having particular benefit in application of very thin backings such as high moisture vapor permeable films widely used as medical dressings is disclosed. The composite has a backing coated with adhesive on at least a portion of the backing and a liner over the adhesive. At least one edge of the backing is a delivery strip which is separable from the remainder of the backing. The liner is securely adhered to the delivery strip and releaseably adhered to the remainder of the adhesive coated backing. The bond between the liner and the delivery strip is strong enough that the delivery strip will separate from the remainder of the backing before it will separate from the liner.
Claims12
An adhesive composite comprising a backing wherein at least one edge of the backing is a delivery strip which is separable by perforations from the remainder of the backing;
- a pressure sensitive adhesive coated on at least a portion of one surface of the backing;
- and
- a liner which is adhered to the delivery strip with sufficient tenacity to result in separation along the perforations of the delivery strip from the remainder of the backing before the liner separates from the delivery strip and which liner is releasably adhered to the remainder of the backing.
A method of applying a thin flexible adhesive coated film to a substrate wherein the film has a delivery strip along at least one edge thereof which is separable from the remainder of the film and a liner adhered to the adhesive-coated surface of the film which liner is adhered to the delivery strip portion of the film with sufficient tenacity to result in separation of the delivery strip from the remainder of the film before the liner-delivery strip bond fails and which is releaseably adhered to the remainder of the film comprising:
- removing the liner from the substrate contacting surface of film;
- placing the substrate contacting surface in intimate contact with the skin;
- and
- separating the liner and delivery strip from the film.
Dependencies are inferred from the claim text.