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US 4,781,293 AGranted
One step dressing delivery system
AssigneePfizer Hospital Products Group, Inc.
InventorOwen L. Johns
Life of this patent
Estimating the term…
Abstract
A dressing delivery system comprising an adhesive-coated dressing, a release liner and a package are arranged such that the package acts as the means for applying the dressing to a skin area, with the opening of the package and the application of the dressing being accomplished in a single step. A simple method of preparing the dressing delivery system is also described.
Claims20
A dressing delivery system, which comprises:
- (a) a thin, flexible dressing comprising a backing layer at least partially coated on one side with adhesive and having a pair of ends and a transverse fold such that at least a portion of the uncoated side of the backing layer is adjacent itself;
- (b) a protective package enclosing the dressing comprising a pair of layers releasably sealed to each other outside the periphery of the dressing;
- (c) a release layer between the adhesive coating of the folded backing layer and the package fixedly attached to the package and split along a line adjacent the fold, the release layer having a substantially greater stiffness and resistance to wrinkling than the dressing;
- (d) opening means on the package adjacent the fold;
- and
- (e) dressing release-retarding means at each end of the dressing, whereby opening of the package and placement of the dressing on a body portion can be accomplished in a single operation.
3 more elements
A dressing delivery system comprising:
- (a) a breathable dressing comprising a rectangular backing layer of transparent polyurethane film coated on one side with acrylic copolymer adhesive and having a pair of ends and a transverse fold dividing the dressing into two equal portions such that the uncoated side of the backing layer is adjacent itself with the ends aligned;
- (b) a protective package enclosing the dressing comprising a pair of layers of sterilizable paper releasably sealed to each other with rubber base contact adhesive outside the periphery of the dressing;
- (c) a release layer of stiff silcone release coated paper between the adhesive coating of the dressing and the package fixedly attached to the package with rubber base contact adhesive and split along a line adjacent the fold;
- (d) a pair of opening tabs adjacent the fold intergral with the package;
- and
- (e) release-retarding means at each end of the dressing in the form of a strip of the dressing parallel with the fold in contact with the package layer.
3 more elements
A method of preparing a dressing delivery system, which comprises:
- (a) providing a dressing comprising a thin, flexible backing layer at least partially coated on one side with adhesive and having a pair of ends with a protective release layer on the adhesive-coated side of the backing layer, the release layer having a substantially greater stiffness and resistance to wrinkling than the dressing;
- (b) folding the protected dressing such that at least a portion of the uncoated side of the backing layer is adjacent itself;
- (c) cutting the release layer along a line adjacent the fold in the protected dressing to divide the release layer into two portions;
- (d) fixedly attaching each portion of the free side of the release layer to a package layer larger than the folded dressing;
- (e) providing each end of the protected dressing with release-retarding means;
- (f) releasably sealing the package layers together outside the periphery of the folded dressing;
- and
- (g) providing the sealed package layers with opening means at a side adjacent the fold.
5 more elements
Dependencies are inferred from the claim text.