FIELD: medical engineering.
SUBSTANCE: device has respiratory mask and gas-proof respiratory sack filled with air usable for breathing at atmospheric pressure. The mask and respiratory sack are directly joined to each other. Sack volume provides normal vital activity of a person adapted to endogenous breathing, during given time period.
EFFECT: simplified design; enhanced effectiveness in training endogenous breathing.
1 dwg
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|---|---|---|---|
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RU1693759C |
