1. Ventilation system (300) comprising: - an opening (322) inspiratory adapted to be connected to the connecting piece (312) inspiratory two segment circuit (110, 210, 310) of a patient, and an opening (342) exhalation adapted to be connected to pipe (114, 214, 314), exhalation two segment patient circuit - a device (320) a gas supply operatively connected to the inspiratory port, and capable of receiving pressurized gas from an external source and to regulate and feed a stream of pressurized gas to the orifice inhalation for creating a positive pressure - a blower (330) having WMOs (332) operatively connected with the exhalation aperture and configured to control for selectively applying a negative pressure at a level of from 4 to 120 cm of water. Art. for the exhalation tube, and furthermore having an outlet (334) capable of releasing the gas produced from the exhalation opening, - an outlet (370) of ventilation apparatus - two-way valve (360) having a valve inlet and a first and second valve outlets, wherein the valve inlet is connected to the exhalation port, a first valve output is connected to an input of a blower and a second valve output is connected to the outlet of the ventilation apparatus and- a controller (350) capable of selectively disconnect the blower (330) during the inspiratory phase of the respiratory tsikla.2. Ventilation system (300) according to Claim. 1 further soderzhaschayaklapan (340) exhalation that can selectively connect and disconnect the input of the blower and the opening vydoha.3. Ventilation system (300) according to claim 2, further comprising: -. sensor (315) of pressure capable of measuring pressure in the patient airway, - wherein controller (350) capable of receiving a signal indicating the measured airway pressure pa1. Система вентиляции (300), содержащая:- отверстие (322) вдоха, выполненное с возможностью соединения с патрубком (312) вдоха двухсегментного контура (110, 210, 310) пациента, и отверстие (342) выдоха, выполненно
