Carrier delivered dressing and method of manufacture
AssigneeMinnesota Mining and Manufacturing Company
InventorsSteven B. Heinecke, Donald G. Peterson
Life of this patent
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Abstract
A carrier delivered dressing is disclosed 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.
Claims18
An adhesive composite dressing comprising:
- (a) a conformable backing having top and bottom faces;
- (b) a low adhesion coating on at least a portion of the top face of the backing;
- (c) a pressure sensitive adhesive coated on at least a portion of the bottom face of the backing;
- (d) a liner releasably adhered to the pressure sensitive adhesive opposite the backing;
- and
- (e) a carrier releasably attached to at least a portion of the top face of the backing and the low adhesion coating, the carrier including a cut substantially defining a window proximate a center of the backing and a carrier frame proximate a perimeter of the backing, the carrier frame including a non-linear cut connecting the perimeter of the carrier to the cut defining the window and the carrier further being formed of material substantially more rigid than the backing 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 end bottom faces;
- (b) a low adhesion coating on at least a portion of the top face of the backing;
- (c) a pressure sensitive adhesive coated on at least a portion of the bottom face of the backing;
- (d) a liner releasably adhered to the pressure sensitive adhesive opposite the backing;
- and
- (e) a carrier releasably attached to at least a portion of the top face of the backing and the low adhesion coating with a heat seal bond, the carrier including a cut substantially defining a window proximate a center of the backing and a carrier frame proximate a perimeter of the backing, the carrier frame including a non-linear cut connecting the perimeter of the carrier to the cut defining the window, and the carrier further being formed of material substantially more rigid than the backing to provide rigidity to the backing and the pressure sensitive adhesive after removal of the liner.
Dependencies are inferred from the claim text.