Abstract: A respirator for emergency supply to a patient, includes a respiratory gas supply which is connected through two control valves and two regulating valves to a patient. The regulating valves are coupled together by adjusting means which permits their adjustment and one is connected in the gas supply line to the first regulating valve, and the other is connected in the connection from the second regulating valve to the patient. The inhalation and exhalation time of the patient may be adjusted. The valve controls provide a time control which includes a control of the second regulator valve by two separate respirator gas volume connections of predetermined volume amounts which act on the second control valve to shift it into one of two defined positions. The second control valve establishes a respiratory gas connection in the inhaling phase through the second regulating valve and a ventilating valve which is connected directly to the patient.

Abstract: A respirator, particularly for infants, for supplying respiratory gas to a patient selectively according to an intermittent positive pressure ventilation cycle, an positive end expiratory pressure cycle, a continuous positive airway pressure cycle, and an intermittent mandatory ventilation cycle comprising, a respiration gas supply line connectable to a patient for supplying a respiratory gas to the patient, an expiration valve for switching from an inspiration phase to an expiration phase and back also connectable to the patient, and a first logic element connected to the expiration valve for switching the expiration valve from an inspiration phase to an expiration phase and back again. A pressure control system is connected to the first logic element for supplying gas at selected pressures to the expiration valve for the inspiration and expiration cycles thereof.

Abstract: The device is of the type in which breathing gas, taken from a pressure-gas supply source through an injector and volumetrically metered in a pressure regulating valve, is supplied, in the inspiration phase, to the user and discharged, in the expiration phase, through an exhaling valve. A control space is divided, by an adjustable partition, into an inspiration chamber and an expiration chamber, and the ratio of the volumes of the two chambers is adjustable by adjustment of the partition. A frequency valve is connected to a source of control gas, and respective first pneumatic control elements connect the chambers, on their upstream sides, to the frequency valve and control supply of control gas to the chambers. Respective second pneumatic control elements connect the downstream sides of the chambers to a bistable storage which is connected to the exhaling valve.