Respiratory aid device

Details Respiratory aid device Respiratory aid device

1988-05-06

1989-10-03

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820525, 12820712, A62B 902, A62B 702

Patent

active

048709638

ABSTRACT:
A continuously positive-pressure respiratory aid, providing positive-pressure inhalation and exhalation of a patient suffering from apnea or other respiratory disorder in which forced breathing-assistance is to be administered. A source of pressurized air, an outlet to a face mask, and a vent outlet all are in parallel communication; and the vent is controlled by a spring-pressed valve body which is adjustable to control the above-atmospheric pressure to individual patient's needs. A safety feature provides that the valve body is sufficiently in vent position for the patient's exhalation even if the valve body is somehow blocked from its normal vent movement; and a viscous grease in the support of the valve body prevents objectionable resonant chatter.

REFERENCES:
patent: 433418 (1890-07-01), Nutz
patent: 1162416 (1915-11-01), Jeter
patent: 3721238 (1973-03-01), Wise et al.
patent: 4323064 (1982-04-01), Hoenig et al.
patent: 4428392 (1984-01-01), Jones et al.
patent: 4454893 (1984-06-01), Orchard
patent: 4509551 (1985-04-01), Luper

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