摘要 |
The gas mixture is fed in a circulating stream at a volume flow rate of 3-12 0 l/min, the mixture being cleaned and its temperature and qualitative and quantitative composition regulated. The gas mixture contains oxygen and at least one of the following gases in quantities of up to 95 %: helium, argon, neon, krypton, xenon, radon, nitrogen, nitrous oxide, sulphur hexafluoride, or a mixture of these gases. Pharmaceutical preparations can also be introduced into the breathing mixture, and the level of inhaled carbon dioxide can be adjusted with the aid of the exhaled carbon dioxide. The apparatus has a circulation loop comprising connecting pipes (6), a respirator bag (5), flow booster (9), temperature regulator (10) and at least one absorption unit (11 and 12) for absorbing the carbon dioxide, moisture a nd harmful trace contaminants exhaled by the patient. The circulation loop is connected to the oxygen gas analyser (14) a nd is also provided with a carbon dioxide gas analyser (15) and temperature gauge (16); the latter two elements, together with the oxygen gas analyser (14), form a measurement unit that is electrically connected to the control unit (8). The mask (19) is connected to the loop by a tube with valves.
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申请人 |
PANINA, ELENA VLADIMIROVNA |
发明人 |
KOTOV, ALEXANDR NIKOLAEVICH;LOGUNOV, ALEXEI TIMOFEEVICH;SMIRNOV, IGOR ALEXEEVICH;PAVLOV, BORIS NIKOLAEVICH;LASTOCHKIN, GEORGY IVANOVICH;BARANOV, VIKTOR MIKHAILOVICH |