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US 7,605,298 B2Granted
Wound covering
AssigneeBio-Gate AG
InventorsThorsten Bechert, Peter Steinrucke
Life of this patent
Estimating the term…
Abstract
The invention relates to a dressing for a wound, containing a first layer which is formed by an absorbent matrix and an antimicrobially active substance. The substance is provided on a surface of the matrix in a chemically or physically bonded matter. The surface of the matrix with the substance is coated with a hydrophilic polymer.
Claims32
A wound covering, wherein said wound covering comprises a first layer and a second layer,
- wherein said first layer comprises an absorbent matrix having a surface and an anti-microbially active substance, wherein said anti-microbially active substance is chemically or physically bonded to said surface, wherein the anti-microbially active substance is a metal, wherein said metal is in the form of clusters, wherein said surface and said substance are coated with a hydrophilic polymer, wherein said anti-microbially active substance is present in a layer having a mean thickness of 5 to 100 nm,
- wherein said second layer comprises a gas-permeable, liquid-impermeable film and a self-adhesive first area, wherein said second layer further comprises a second area, wherein said first area surrounds said second area,
- wherein said matrix is connected to said film in said second area, wherein said wound covering adheres to human or animal skin by means of said self-adhesive first area, wherein the adherence forms a liquid-tight inner space into which a liquid can be deposited.
Dependencies are inferred from the claim text.