Method and an arrangement for manufacturing wound dressings, and a wound dressing manufactured in accordance with the method
AssigneeMolnlycke AB
InventorTomas Fabo
Life of this patent
Estimating the term…
Abstract
A method and apparatus for manufacturing a wound dressing, and a wound dressing produced thereby. The upper surface of a perforated carrier material (2) is coated with a curable silicone mixture (3) and cold air is blown onto the underside of the coated carrier material. Heat is then applied to the silicone mixture until it has cured to a silicone gel.
Claims14
A method of manufacturing wound dressings, which comprises:
- applying a coating of curable silicone mixture to an upper surface of a perforated carrier material;
- blowing cold air onto an underside of the coated carrier material so that the silicone mixture is blown away from the perforations in the carrier material so as to form through penetrating perforations and prevent clogging of the perforations in the carrier material;
- and
- applying heat to the silicone mixture until it has cured.
Apparatus for manufacturing a wound dressing having a perforated carrier material and a layer of hydrophobic silicone gel, said apparatus comprising:
- means for coating an upper surface of the carrier material with a mixture of components which when cured form a silicone gel;
- an air-blowing unit for blowing cold air onto an underside of the carrier material, said air blowing unit being placed opposite the coating means;
- and
- means for delivering heat to the mixture of components applied to the upper surface of the carrier material.
A wound dressing comprising a perforated carrier material and a layer of hydrophobic silicone gel which lies against a wound surface when the dressing is worn, said carrier material being impervious to air and fluid, or only slightly permeable to air and fluid in the parts thereof lying between perforations;
- said carrier material being coated with silicone gel on only one side thereof, and said layer of silicone gel having through penetrating perforations coinciding with the perforations in the carrier material.
Dependencies are inferred from the claim text.