Wound dressing for treatment of damaged skin
AssigneeFidia Farmaceutici S.P.A.
InventorsMonica Campisi, Giovanni Gennari
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Abstract
Adhesive wound dressing that comprises an absorbent matrix (A) adhering to the central portion of a polyurethane backing (B) having an adhesive layer for the skin, said matrix (A) comprising: a. a breathable and porous polyethylene film at the end designed to come into contact with the wound; b. an absorbent layer made of non-woven fabric adjacent to film a), said absorbent layer consisting of: i. 60-65% viscose ii. 25-30% polyester iii. 5-15% polypropylene; c. a layer of polyethylene inserted between layer b) and a layer d. of hydrophobic polystyrene, the latter being in contact with the central portion of polyurethane backing (B); wherein matrix (A) is impregnated with a solution of one or more polysaccharides or the salts thereof.
Claims14
Adhesive wound dressing which comprises an absorbent matrix (A) adhering to a central portion of a polyurethane backing (B) having an adhesive layer for the skin, said matrix (A) comprising:
- a. a breathable and porous polyethylene film at the surface thereof designed to come into contact with the wound;
- b. an absorbent non-woven fabric layer adjacent to film a), said absorbent layer consisting of:
- i. 60-65% viscose
- ii. 25-30% polyester
- iii. 5-15% polypropylene;
- c. a polyethylene layer inserted between layer b) and a layer
- d. of hydrophobic polystyrene, the latter being in contact with the central portion of polyurethane backing (B);
- wherein matrix (A) is impregnated with a solution of hyaluronic acid sodium salt with an average molecular weight ranging from 150,000 to 250,000 Da in a concentration from 0.1% to 1% w/w.
Dependencies are inferred from the claim text.