Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1977-08-11
1979-05-29
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
128206, 128208, 128203, A61M 1500
Patent
active
041564260
ABSTRACT:
A head-mounted oxygen-administration device designed to improve the level of inspired oxygen concentration for mouth and nasal breathing users without interference with the user's activities of eating and talking and which includes a pair of nasal cannulas mounted on one side of a body having a chamber adapted for connection to a source of oxygen under pressure providing a positive oxygen flow into the chamber, and a flow discharge aperture provided on the opposite side of the body in communication with the chamber and functioning upon restriction of nasal inhalation and during oral inhalation to direct oxygen flow from the chamber to the user's mouth, such directed flow being effected from a position remote from the user's mouth.
REFERENCES:
patent: 853431 (1907-05-01), Allen
patent: 2546214 (1951-03-01), Curry
patent: 2763263 (1956-09-01), Ellman
patent: 3902486 (1975-09-01), Guichard
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