Patent ID: 7759538

Claim:
A device for application of substances to tissue, said device comprising: a porous padding adapted for application upon a treatment surface of the tissue, a sealing cover for covering the treatment surface and the padding and sealing the treatment surface from the atmosphere, at least one supply line introduced into the padding for supplying a fluid substance to the treatment surface, and at least one removal line introduced into the padding for removing the fluid substance and tissue fluids from the treatment surface, the removal line connectable to a vacuum source, wherein the supply line and the removal line are provided with respective controllable closure mechanisms, and a controller which temporally controls the respective closure mechanisms so that the closure mechanism of the supply line and the closure mechanism of the removal line are not open at the same time and that in the time interval between the closure of the closure mechanism of the supply line and the opening of the closure mechanism of the removal line a treatment dwell time interval is provided, wherein sub-atmospheric pressure from the vacuum source is applied to the treatment surface to stimulate the tissue.