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US 12,661,271 B2Granted
Medical dressing comprising a backing layer with three dimensional features
AssigneeMölnlycke Health Care AB
InventorsUlf Johannison, Sami Ahsani, Anders Dahlberg
Life of this patent
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Abstract
Described is a medical dressing having a backing layer containing three dimensional features. The dressing is flexible and has an improved wear time. Also described is a method for preparing such a medical dressing.
Claims15
A medical dressing comprising:
- an adhesive skin contact layer;
- a backing layer;
- and
- an absorbent pad having a skin-facing surface and an outwardly facing surface opposite the skin-facing surface, wherein the absorbent pad is arranged between said backing layer and said adhesive skin contact layer so that the skin-facing surface faces the adhesive skin contact layer and the outwardly facing surface faces the backing layer,
- wherein said backing layer has a first surface facing said adhesive skin contact layer and an opposing second surface, characterized in that said backing layer comprises a plurality of three dimensional features forming protrusions on said second surface of said backing layer and depressions on said first surface of said backing layer,
- wherein said depressions of said backing layer define gaps between an immediately adjacent underlying layer that is one of said adhesive skin contact layer or said absorbent pad, wherein a first area of the backing layer overlies an entirety of the absorbent pad, and wherein the backing layer is a continuous and uninterrupted surface across an entirety of the first area.
3 more elements
A medical dressing comprising:
- an adhesive skin contact layer;
- a backing layer, wherein said backing layer has a first surface facing said adhesive skin contact layer and an opposing second surface, characterized in that said backing layer comprises a plurality of three dimensional features forming protrusions on said second surface of said backing layer and depressions on said first surface of said backing layer;
- and
- an absorbent pad having a skin-facing surface and an outwardly facing surface opposite the skin-facing surface, wherein the absorbent pad is arranged between said backing layer and said adhesive skin contact layer so that the skin-facing surface faces the adhesive skin contact layer and the outwardly facing surface faces the backing layer,
- wherein said first surface of said backing layer is not attached to either of said adhesive skin contact layer or said absorbent pad in areas forming said depressions, wherein a first area of the backing layer overlies an entirety of the absorbent pad, and wherein the backing layer is a continuous and uninterrupted surface across an entirety of the first area.
2 more elements
Dependencies are inferred from the claim text.