Device for negative pressure wound therapy

摘要

The invention refers to a device for the negative pressure wound therapy comprising a cover material for the air-tight sealing of the wound and the wound surroundings; a means suitable for the generation of a negative pressure in the wound area, preferably a means for the functional connection of the wound area with a negative pressure source outside of the cover material in such a way that a negative pressure can be generated in the wound area and fluids can be drawn out of the wound area by suction; and a wound dressing, whereby the wound dressing contains an open-cell foam on the basis of a cross-linked polyorganosiloxane. The invention also refers to the use of open-cell foam on the basis of a cross-linked polyorganosiloxane for use in the negative pressure wound therapy, in particular in patients with a BMI of less than 18.

主权项

1. A device for negative pressure wound therapy comprising,
(a) a cover material for air-tight sealing of the wound and the wound surroundings; (b) a means suitable for the generation of a negative pressure in the wound area; and (c) an open-cell foam on the basis of a cross-linked polyorganosiloxane as a wound dressing, wherein the foam (c) has an air permeability of 1,000 to 8,000 l/(m2 sec), measured in accordance with DIN EN ISO 9237, and whereby the foam (c) is obtained by the reaction of a curable mixture containing the components (i) a first polyorganosiloxane containing one or more groups with a C2-C6 alkenyl group, (ii) a second polyorganosiloxane containing one or more Si—H groups, (iii) a foaming agent containing one or more OH groups, and (iv) an organometallic catalyst.