Hemostatic adhesive bandage
First Claim
Patent Images
1. In an adhesive bandage of the type used on minor cuts and wounds, which consists of a pressure-sensitive adhesive coated backing having attached thereto an absorbent pad bandage portion covered with a perforated plastic film wound release cover, the improvement comprising:
- a very thin coating comprising a polyethylene oxide having a molecular weight of at least 600,000, on said wound release cover, thereby to improve the hemostatic effect of said adhesive bandage.
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Abstract
Hemostatic adhesive bandages are disclosed wherein a very thin coating of a high molecular weight polyethylene oxide is applied to the surface of the perforated plastic film wound release cover of an adhesive bandage, in a manner compatible with commonly used high speed production techniques and equipment, which stop the bleeding faster when applied to minor cuts.
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Citations
10 Claims
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1. In an adhesive bandage of the type used on minor cuts and wounds, which consists of a pressure-sensitive adhesive coated backing having attached thereto an absorbent pad bandage portion covered with a perforated plastic film wound release cover, the improvement comprising:
a very thin coating comprising a polyethylene oxide having a molecular weight of at least 600,000, on said wound release cover, thereby to improve the hemostatic effect of said adhesive bandage. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A hemostatic adhesive bandage comprising a backing material, a pressure-sensitive adhesive coating on one side of said backing material, an absorbent pad secured to said side of said backing material, a perforated film wound release cover overlying said absorbent pad, and on the outer surface of said wound release cover a very thin coating comprising polyethylene oxide having molecular weight of at least 600,000.
- 8. A process for improving the hemostasis effect of an adhesive bandage of the type used on minor cuts and wounds which consists of a pressure-sensitive adhesive coated backing covered with a perforated plastic film wound release cover comprising carrying out all steps otherwise used to manufacture said adhesive bandage, but additionally dissolving apolyethylene oxide having a molecular weight of at least 600,000 in a solvent, coating the resultant solution on the wound release cover, evaporating off the solvent leaving a very thin coating of polyethylene oxide on the wound release cover.
Specification