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US 7,442,849 B2Granted
Thin film delivery system and method of manufacture
Assignee3M Innovative Properties Company
InventorSteven B. Heinecke
Life of this patent
Estimating the term…
Abstract
A carrier delivered dressing is disclosed which has a conformable backing with a pressure sensitive adhesive coated on a bottom face and removable carrier attached to the top face of the backing. A bond block material is positioned between the backing and the carrier. A cut line traverses both the carrier and the bond block material to form a tab.
Claims31
An adhesive composite dressing comprising:
- (a) a conformable backing having top and bottom faces;
- (b) a pressure sensitive adhesive coated on at least a portion of the bottom face of the backing;
- (c) a liner releasably adhered to the pressure sensitive adhesive opposite the backing;
- (d) a carrier releasably attached to at least a portion of the top face of the backing;
- (e) a bond block material positioned between the carrier and the top face of the backing;
- and
- (f) a cut line proximate the center of the dressing that traverses the length or width of the carrier
- wherein the bond block material prevents bonding of the carrier to the backing to create a bond-free area adjacent to at least one side of the cut line.
5 more elements
An adhesive medical article, comprising
- a liner;
- a transparent film coated on at least a portion of the surface with a pressure sensitive adhesive;
- a carrier;
- a bond block material positioned between the carrier and the top face of the backing;
- a cut line proximate the center of the article that traverses the length or width of the carrier;
- and
- wherein the material prevents bonding of the carrier to the backing to create a bond-free area adjacent to at least one side of the cut line.
4 more elements
An adhesive roll good, comprising
- a liner;
- a transparent film coated on a portion of at least surface with a pressure sensitive adhesive;
- a carrier;
- a bond block material positioned between the carrier and the top face of the backing;
- a cut line proximate the center of the roll good that traverses the length or width of the carrier;
- and
- wherein the material prevents bonding of the carrier to the backing to create a bond-free area adjacent to at least one side of the cut line.
4 more elements
A method of manufacturing an adhesive composite dressing comprising the steps of:
- (a) providing a conformable backing having top and bottom faces, a pressure sensitive adhesive on at least a portion of the bottom face of the backing and a liner on the pressure sensitive adhesive;
- (b) positioning a bond block material between the top face of the conformable backing and a carrier;
- (c) non-permanently heat sealing the carrier to the top face of the backing, the bond between the carrier and top face of the backing being greater than the bond between the liner and the pressure sensitive adhesive;
- and
- (d) die cutting a cut line through the carrier such that the bond block material positioned between the carrier and the top face of the backing is adjacent at least one side of the cut line;
- wherein the bond block material prevents bonding of the carrier to the backing to create bond-free area adjacent to at least one side of the cut line.
3 more elements
Dependencies are inferred from the claim text.