Foam bandage
AssigneeSeton Company
InventorsMartin I. Edenbaum, Borys Rybalka
Life of this patent
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Abstract
A disposable bandage, and a process for manufacturing it, which is prepared from a single sheet or strip of liquid permeable, flexible thermoplastic hydrophilic foam. The process includes coating the entire surface of one side of a foam sheet or strip with a layer of porous pressure sensitive adhesive, covering the same side of the laminate with a suitable release liner and heat compressing the laminate except in the area of the laminate intended for wound contact. The foam bandage so produced includes both a resilient absorbent pad and thin but absorbent adhesive-coated tabs and is suitable for use as an occlusive dressing. Optionally, the bandage may have a moisture vapor permeable, moisture impermeable skin thereon, to provide a water- andbacteria-proof protective outer layer for the foam bandage.
Claims16
A foam bandage for application to a wound area of the body comprising a laminate having a liquid permeable foam layer and a liquid permeable porous pressure sensitive layer, said liquid permeable porous pressure sensitive layer adapted to adhere to the body.
A method for preparing a foam bandage, comprising:
- (a) selecting a low density foam sheet;
- (b) adhering a porous pressure sensitive adhesive layer, which is permeable to liquid water and serum, to said low density foam sheet to form a laminate;
- and
- (c) heat compressing the entire sheet thus produced except in the area of said laminate intended for wound contact.
Dependencies are inferred from the claim text.