CONTROL OF BLOCKAGE Russian patent published in 2015 - IPC A61M1/00 

FIELD: medicine.

SUBSTANCE: group of inventions relates to the field of medicine. A device for the application of treatment with local negative pressure (LNP) in the area of a wound includes: a permeable layer, formed as a three-dimensional jersey layer, containing the first and second additional layers, separated from each other with monothreads; an air-impermeable, but permeable for moisture vapours covering the layer above the first and additional layers. The first layer is located proximally from the used wound bed and contains a multitude of holes, each of which has the first open area. The additional layer is located distally from the used wound bed at a distance from the first layer and contains a multitude of the first holes and a multitude of the second holes, each of which has the second open area. The first and additional layers form the lower and upper layers of the permeable layer. A region between the first and additional layers contains a part of a channel for air and/or wound exudates, leaking from the wound region. The first open area is smaller than the second open area. The second open area of the second holes of the additional layer makes it possible for any solid substances, passing through the first open area of the holes of the first layer, to pass through the holes of the additional layer towards the covering layer. The wound bandage includes the device, described above. The method of applying LNP treatment in the wound region includes: pumping fluid by means of a vacuum pump from the wound bandage, located above the wound region, application of negative pressure on the wound region; and evaporation of the fluid through the covering layer of the wound bandage, and in this way prevents the blockage of the region of the wound bandage fluid channel.

EFFECT: application of the claimed group of inventions will make it possible to prevent the blockage of the region of the wound bandage fluid channel.

10 cl, 9 dwg