Atraumatic absorbent wound dressing
AssigneePaul Hartmann AG
InventorsGemma Galvan, Fernando Gonzalez, Oscar Mosquera, Axel Eckstein
Life of this patent
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Abstract
The present invention concerns a wound dressing with improved adhesive and atraumatic properties. The wound dressing comprises a backing layer, an absorbent wound pad and a perforated atraumatic wound contact layer. The absorbent wound pad comprises super absorbent fibers and a net layer. The atraumatic wound contact layer comprises a polyurethane layer, an adhesive acrylic layer and an adhesive silicone layer as skin adherent. The backing layer and the perforated atraumatic wound contact layer are bonded together at the edge region.
Claims15
A wound dressing (8) comprising
- a backing layer (2) comprising a nonwoven material or a polyurethane,
- an absorbent wound pad (1) comprising super absorbent fibers and a net layer (13), the net layer (13) being directed towards the wound side,
- a perforated atraumatic wound contact layer comprising a polyurethane layer (4), an adhesive acrylic layer (7) and an adhesive silicone layer (5) as skin adherent,
- wherein the polyurethane layer (4) is located between the adhesive acrylic layer (7) and the adhesive silicone layer (5) and wherein the perforated atraumatic wound contact layer and the backing layer (2) extend beyond the wound pad (1) thereby creating an edge region and wherein the backing layer (2) and the perforated atraumatic wound contact layer are bonded together at the edge region.
A method for manufacturing an absorbent wound dressing (8) having an adhesive atraumatic wound contact layer, said method comprising the steps of:
- a) providing a backing layer (2) comprising a nonwoven material or a polyurethane
- b) attaching an absorbent wound pad (1) comprising i) a layer having super absorbent fibers and ii) a net layer (13) to the backing layer (2), whereby the net layer (13) is directed towards the wound side,
- c) providing a polyurethane layer (4) coated with an adhesive acrylic layer (7) on one side and coated with an adhesive silicone layer (5) on the other side wherein the polyurethane layer (4), the adhesive acrylic layer (7) and the adhesive silicone layer (5) are perforated and
- d) attaching the polyurethane layer (4) with the adhesive acrylic layer (7) towards the backing layer (2) and the wound pad (1), whereby the adhesive silicone layer (5) is to be oriented in a way that it can be placed on a wound.
Dependencies are inferred from the claim text.