1. A device providing a negative pressure at the wound site, comprising: a suction pump for generating a negative pressure, the negative pressure tank, a valve member for selectively providing fluid communication between said container and the wound area, when a negative pressure in said tank exceeds a threshold value of the negative pressure, and providing thereby a predetermined negative pressure in the wound area wherein in response to a decrease in said pressure vessel to a negative threshold Yelnia pressure provided by actuation of the drain pump in order to restore the initial capacitance in said negative davleniya.2. The apparatus of claim 1, further comprising an additional valve member coupled between the reservoir and the negative pressure suction pump and adapted to connect the drain pump with the capacity of the negative pressure when the pressure in said vessel to a negative threshold davleniya.3. An apparatus according to any one of claims 1 or 2, further comprising a pressure sensor for measuring the negative pressure in negative tank davleniya.4. The apparatus of claim 3, further comprising a controller operable to control the suction pump so as to provide an initial negative pressure in the negative pressure tank depending on the pressure on davleniya.5 sensor. An apparatus according to any one of claims 1, 2 or 4, wherein the initial negative pressure is the negative pressure more than 200 mmHg davleniya.6 below atmospheric. The apparatus according to claim 5, wherein the started1. Устройство обеспечения отрицательного давления в области раны, содержащее:откачивающий насос для создания отрицательного давленияемкость отрицательного давленияклапанный элемент для избирательного обеспечения жидкостной связи между указанной емкостью и областью раны, когда отрицательное давление в указанной емкости превышает пороговое значение отрицательного давления, и обеспечения тем самым заданного отрицательного давления в области раныпричем в ответ на снижение давле
