PCT No. PCT/SE82/00063 Sec. 371 Date Oct. 19, 1982 Sec. 102(e) Date Oct. 19, 1982 PCT Filed Mar. 9, 1982 PCT Pub. No. WO82/03014 PCT Pub. Date Sep. 16, 1982.This invention comprises a respirator intended for connection to human or animal airways. A first device for supplying and receiving respiratory gas to and from the airways so that the lungs can be ventilated is combined with a second devices that provides a valve-regulated separate supply of gas to the airways independently of the respiratory gas flow provided by the first device. The second device incorporates at least one line used to supply gas under pressure. Furthermore there are a number of valves connected in parallel to this line, which provide a pulsating gas supply, and a control unit that can be used to control at least some of the gas pulse characteristics.
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