| 摘要 |
FIELD: medicine. SUBSTANCE: the respiratory system forms an inhalation medium with a moderate hypoxia and hypercapnia by means of simple technical components. Proportional mixing of the expired air with the atmospheric air in the chamber takes place in the respiratory system, the chamber is connected to the breathing tube with a mask. The chamber communicates with the environment through the air conduit opening and the breathing valve. The chamber is provided with a movable cover carrying the breathing valve and the air conduit opening positioned closely to each other. EFFECT: enhanced precision of adjustment of the content of oxygen in the inhalation air mixture. 12 dwg |
