Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2006-08-01
2006-08-01
Dawson, Glenn K. (Department: 3731)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S205170, C128S205240, C128S205130
Reexamination Certificate
active
07082946
ABSTRACT:
In order to protect the passengers of an airplane against the effects of depressurization of the cabin, breathing masks are fed with oxygen at a rate which is an increasing function of cabin altitude. Oxygen is fed via a constriction and an economizer bag, and an initial fraction only of the gases breathed out is caused to be re-breathed by collecting the initial fraction in a flexible re-breathing bag in communication with the mask. The re-breathing bag has a volume in inflated state which is not less than the total dead volume of the respiratory tract and the mask. A protective apparatus comprises a feed control unit supplying an adjustable flow rate to masks connected to a general pipe via respective economizer bags. A re-breathing bag retards re-breathing and stores only an initial fraction of the gases breathed out on each exhalation.
REFERENCES:
patent: 2248349 (1941-07-01), Heidbrink
patent: 2558975 (1951-07-01), Moreno
patent: 4098271 (1978-07-01), Maddock
patent: 4766893 (1988-08-01), Drews
patent: 4821712 (1989-04-01), Gossett
patent: 4989691 (1991-02-01), Wilkerson et al.
patent: 5265597 (1993-11-01), Wallis
patent: 5343859 (1994-09-01), Kikut
patent: 5357949 (1994-10-01), Bertheau et al.
patent: 5408995 (1995-04-01), Contino et al.
patent: 5832864 (1998-11-01), Hemphill
patent: 435916 (1926-10-01), None
patent: 40 19 926 (1991-04-01), None
patent: 0 905 016 (1999-03-01), None
patent: 1190440 (1959-10-01), None
patent: 2557463 (1985-07-01), None
patent: 2614207 (1987-04-01), None
patent: 2696350 (1994-04-01), None
patent: 836221 (1960-06-01), None
patent: 934973 (1963-08-01), None
FR 2,557,463: Breathing Mask For Protection In Rarefied Atmosphere, Particularly For Passengers Of Airplanes Flying At High Altitude (English Translation).
International Search Report in related Application No. PCT/IB03/05081.
Bardel Michel
Bloch Nicolas
Farin Eric
Dawson Glenn K.
Erezo Darwin P
Intertechnique
Kilpatrick & Stockton LLP
Russell Dean W.
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