Reinforced adhesive backing sheet
AssigneeKCI USA, Inc.
InventorWilliam Pigg
Life of this patent
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Abstract
A backing sheet for use in a wound dressing, comprising a semipermeable continuous film laminated to an adhesive-coated apertured layer, wherein the apertured layer comprises a solid substrate coated with a medically acceptable adhesive. Also provided is a method of making a backing sheet for use in a wound dressing, said method comprising the steps of: forming an adhesive-coated apertured layer by coating a medically acceptable adhesive onto an apertured solid substrate, followed by laminating the adhesive-coated apertured layer to a semipermeable continuous film.
Claims13
A wound dressing, comprising:
- a backing sheet;
- and
- a wound contacting sheet comprising at least one absorbent layer;
- wherein the backing sheet comprises an apertured layer and a continuous film laminated to the apertured layer, the film being impermeable to wound exudates and to microorganisms and permeable to water vapor;
- wherein the apertured layer comprises an apertured substrate coated with a medically acceptable adhesive;
- and
- wherein the apertured layer is laminted between the wound contacting sheet and the continuous film.
A method of making a backing sheet, comprising:
- forming an apertured layer by coating a medically acceptable adhesive onto an apertured substrate;
- and
- laminating the apertured layer between a continuous film and a wound contacting sheet comprising at least one absorbent layer;
- wherein the continuous film is permeable to water vapor, but impermeable to wound exudates and microorganisms.
Dependencies are inferred from the claim text.