Carrier delivered dressing and method of manufacture
Assignee3M Innovative Properties Company
InventorsSteven B. Heinecke, Donald G. Peterson
Life of this patent
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Abstract
A carrier delivered dressing which has a conformable backing with a pressure sensitive adhesive coated on a bottom face and a low adhesion coating on a top face. The backing is supported during shipping and handling by a liner attached to the adhesive and a removable heat sealed carrier attached to the top face of the backing. The method according to the present invention discloses the steps of forming and optionally removing windows in a carrier material and nonpermanently heat sealing the carrier to the backing to form the dressings of the present invention.
Claims11
An adhesive composite dressing comprising:
- (a) a conformable backing having top and bottom faces, the backing comprising a polymer film;
- (b) a pressure sensitive adhesive coated on at least a portion of the bottom face of the backing;
- (c) a liner releaseably adhered to the pressure sensitive adhesive opposite the backing;
- and
- (d) a carrier releasably heat-sealed to the polymer film with a heat seal bond, the carrier substantially defining a window proximate a center of the backing and a carrier frame proximate a perimeter of the backing, the carrier further being formed of material substantially more rigid than the polymer film to provide rigidity to the backing and the pressure sensitive adhesive after removal of the liner.
An adhesive composite dressing comprising:
- (a) a conformable backing having top and bottom faces, the backing comprising a polymer film;
- (b) a pressure sensitive adhesive coated on at least a portion of the bottom face of the backing;
- (c) a liner releaseably adhered to the pressure sensitive adhesive opposite the backing;
- and
- (d) a carrier releasably heat-sealed to the polymer film with a heat seal bond, the carrier substantially defining a window proximate a center of the backing and a carrier frame proximate a perimeter of the backing, the carrier further being formed of material substantially more rigid than the polymer film to provide rigidity to the backing and the pressure sensitive adhesive after removal of the liner, wherein the heat seal bond between the carrier and the polymer film is stronger than the bond between the pressure sensitive adhesive and the liner, and further wherein the top face of the backing within the window defined by the carrier is exposed.
Dependencies are inferred from the claim text.