Method for preparing breathing mixture and apparatus for applying the method

The invention relates to medicine and means of medical engineering and can find application in medical practice for treating a number of diseases with the aid of breathing gas mixtures, including affections resulting from emergency situations. The essence of the invention consists in that a gas mixture is fed in a circulatory flow at a volume rate of flow from 3 to 120 l/min, involving cleaning of the mixture and adjusting its temperature and qualitative and quantitative composition which contains oxygen and at least one of the following gases (with a maximum 95% percent content of each gas): helium, and/or argon, and/or neon, and/or crypton, and/or xenon, and/or radon, and/or nitrogen, and/or nitrogen monoxide, and/or sulfur hexafluoride, or a mixture thereof; the breathing mixture may be doped with medicinal agents; the carbon-dioxide content of the inhaled air is adjustable using the exhaled carbon dioxide; an apparatus for forming a breathing gas mixture is provided with a circulation circuit built up by the breathing bag, a gas flow inducer, a temperature controller, and at least one absorbent filter of carbon dioxide, moisture, and harmful microimpurities exhaled by the patient; the circulation circuit communicates with an oxygen gas analyzer and is further provided with a carbon-dioxide gas analyzer and a temperature gauge, both of which establishing, together with the oxygen analyzer, a measuring unit electrically connected to the control unit, and the breathing mask is connected, through pipings provided with valves, to the circulation circuit.