Surgical bandage
First Claim
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1. A bandage comprising a pressure sensitive adhesive layer, a layer of semi-open cell flexible polymeric foam attached to said adhesive layer, and a water-impervious flexible polymeric film attached to the opposite side of said foam layer wherein said adhesive layer comprises a rubbery elastomer having dispersed therein a water soluble or swellable hydrocolloid or mixture of hydrocolloids, tackifier, and plasticizer.
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Abstract
Bandage which can be applied to the skin in place of the normal surgical dressings comprising an adhesive layer, a layer of flexible semi-open cell polymeric foam, and an outer water impervious flexible polymeric film coating.
329 Citations
17 Claims
- 1. A bandage comprising a pressure sensitive adhesive layer, a layer of semi-open cell flexible polymeric foam attached to said adhesive layer, and a water-impervious flexible polymeric film attached to the opposite side of said foam layer wherein said adhesive layer comprises a rubbery elastomer having dispersed therein a water soluble or swellable hydrocolloid or mixture of hydrocolloids, tackifier, and plasticizer.
- 9. A bandage comprising a pressure sensitive adhesive layer, a layer of semi-open cell flexible polymeric foam attached to said adhesive layer having from about 50 to about 100 cells per linear inch with from about 30 to about 70% of the cells ruptured, and a water-impervious flexible polymeric film attached to the opposite side of said foam layer wherein said adhesive layer comprises a rubbery elastomer having dispersed therein a water soluble or swellable hydrocolloid or mixture of hydrocolloids, a tackifier, and a plasticizer, and wherein said hydrocolloid comprises more than about 30% by weight of the adhesive layer and is selected from the group consisting of polyvinyl alcohol, powdered pectin, gelatin sodium carboxymethylcellulose, high molecular weight carbowax, carboxypolymethylene, and mixtures thereof and said elastomer is selected from the group consisting of natural rubber, silicone rubber, acrylonitrile rubber, polyurethane rubber, and polyisobutylene.
Specification