FIELD: medicine.
SUBSTANCE: group of inventions relates to medical equipment. Nasal devices are detachable devices, which can be placed above or in respiratory cavity to increase resistance to air flow inside respiratory cavity. Resistance to exhalation can be selectively increased relative to inhalation resistance. Nasal devices filter out flow pollutants and allergens from air. In one of versions nasal device increases open condition of nostrils.
EFFECT: devices allow reproducing of breathing effect through tight lips and non-invasive ventilation.
14 cl, 4 ex, 28 dwg
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|---|---|---|---|
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|
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