Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1979-11-13
1981-11-24
Recla, Henry J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820524, A61M 1600
Patent
active
043017932
ABSTRACT:
A sigh producing mechanism in a blower type positive pressure respirator. In breathing, a normal person will occasionally take a deep breath, a sigh, to break the monotony of regular breathing. In artificial respiration, such occasional sighs are also desired. The sigh is produced by an increase in the speed of the blower for a few breathing cycles. To produce the sigh, the resistance to the blower motor is reduced and this is accomplished with the aid of a timer to space the sigh intervals and limit the duration of the sigh cycles.
REFERENCES:
patent: Re29778 (1978-09-01), Stewart
patent: 3863630 (1975-02-01), Cavallo
patent: 3910270 (1975-10-01), Stewart
Berkstresser Jerry W.
Klaas Bruce G.
Recla Henry J.
Shelton Dennis K.
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