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.
Claims14
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) nonpermanently sealing a carrier to the top face of the backing, the bond between the carrier and the top face of the backing being greater than the bond between the liner and the pressure sensitive adhesive;
- the carrier having a cut defining a window proximate the center of the backing and a nonlinear cut connecting the perimeter of the carrier to the window-defining cut.
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) nonpermanently heat sealing a carrier to the top face of the backing, the bond between the carrier and the top face of the backing being greater than the bond between the liner and the pressure sensitive adhesive;
- the carrier having a cut defining a window proximate the center of the backing.
A method of manufacturing an adhesive composite dressing having a carrier for delivery comprising the steps of:
- (a) providing a conformable backing having top and bottom faces, a pressure sensitive adhesive on the bottom face of the backing and a liner of the pressure sensitive adhesive;
- (b) die cutting a window in the carrier, the window defining an inner edge of a frame of the dressing;
- (c) nonpermanently heat sealing the carrier to the top face of the backing, the bond between the carrier and the top face of the backing being greater than the bond between the liner and the exposed surface of the pressure sensitive adhesive.
Dependencies are inferred from the claim text.