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US 4,915,228 AGranted
One step dressing delivery system
AssigneeSmith & Nephew United, 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.
Claims6
A dressing having a delivery system to facilitate application of the dressing onto a human which comprises:
- (a) a thin flexible backing layer having a suitable adhesive on substantially all of one surface thereof, the backing layer and the adhesive being impermeable to liquids but permeable to water vapor and oxygen, and a pair of ends and a transverse fold such that at least a portion of the non-adhesive coated 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 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, said dressing having a water vapor transmission rate of at least 250 g/m.sup.2 /24 hrs/40.degree. C./80% RH.
3 more elements
A dressing having a delivery system to facilitate application of the dressing onto a human which comprises:
- (a) a breathable dressing comprising a substantially rectangular backing layer of a thin flexible transparent polyurethane film having an acrylic copolymer adhesive on substantially all of one surface thereof and having a pair of ends and a transverse fold dividing the dressing into two equal portions such that the uncoated side of the polyurethane film is adjacent itself with ends aligned;
- (b) a protective package enclosing the dressing comprising a pair of layers of sterilizable paper releasably sealed to each other with a suitable contact adhesive outside the periphery of the dressing;
- (c) a release layer of silicon release coated paper having a substantially greater stiffness and resistance to wrinkling than the dressing disposed between the adhesive coating of the dressing and the package fixedly attached to the package with a suitable contact adhesive and split along a line adjacent the fold;
- (d) a pair of opening tabs adjacent the fold integral 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 dressing layer.
3 more elements
Dependencies are inferred from the claim text.