Abstract

The present invention discloses a wound dressing and the method of manufacturing. The wound dressing is a knitted fabric including of a fluffy layer of gel-forming fibers and a backing layer of non-gel-forming fibers. The backing layer includes a plain fabric of the non-gel-forming fibers. The gel-forming fibers are knitted onto the backing layer, a middle part of the gel-forming fibers are held in the backing layer, and two ends of the gel-forming fibers project against the backing layer. The length of the middle part of the gel-forming fibers is no more than the length of one loop of the non-gel-forming fibers, and the length of each of the two ends of the gel-forming fibers is between 1-100 mm.

IPC Classes  ?

• A61F 13/00 - Bandages or dressings; Absorbent pads
• A61L 15/26 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
• A61L 15/28 - Polysaccharides or their derivatives
• A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents
• A61L 15/32 - Proteins, polypeptides; Degradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin
• A61L 15/44 - Medicaments

Abstract

A wound dressing, including fibers containing silver ions. The fibers are manufactured by dissolving silver nitrate into a polymer solution in the substantial absence of light, and then extruding the obtained solution into fibers by wet spinning process. The silver content of the wound dressing is between 0.01-10% by weight, and preferably 0.1-7% by weight.

IPC Classes  ?

• A61L 15/46 - Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• A61L 15/28 - Polysaccharides or their derivatives
• A61F 13/00 - Bandages or dressings; Absorbent pads
• B65B 5/04 - Packaging single articles
• B65B 55/12 - Sterilising contents prior to, or during, packaging
• D01F 1/10 - Other agents for modifying properties
• D01F 9/04 - Man-made filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of alginates

Abstract

A wound dressing, including: a first outer layer, a second outer layer, and a middle layer disposed between the first outer layer and the second outer layer. The volume density of the first outer layer and a volume density of the second outer layer are greater than that of the middle layer; the first outer layer, the second outer layer, and the middle layer are bonded together.

IPC Classes  ?

• A61F 13/00 - Bandages or dressings; Absorbent pads
• A61F 13/02 - Adhesive plasters or dressings
• A61L 15/26 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
• A61L 15/28 - Polysaccharides or their derivatives
• A61L 15/44 - Medicaments

Abstract

A three-layered wound dressing, including: a first layer, a second layer, and a third layer. The first layer includes a blend of first hydrophilic fibers and first hydrophobic fibers, the second layer includes a blend of second hydrophilic fibers and second hydrophobic fibers, and the third layer includes hydrophobic fibers. The second layer is disposed between the first layer and the third layer. In use, the first layer contacts a wound.

IPC Classes  ?

• A61F 13/00 - Bandages or dressings; Absorbent pads
• A61L 15/22 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
• A61L 15/44 - Medicaments
• A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents