Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1996-11-12
1998-06-02
Asher, Kimberly L.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820524, 137 93, A61M 1600, A62B 700, A62B 902, F16K 3102
Patent
active
057586411
ABSTRACT:
A continuous-flow oxygen valve for oxygen rebreathers employs the use of reversible rotary motors to control continuously variable valves in order to provide more constant gas flow to oxygen rebreathers. The motor is connected by gears to a valve which can be adjusted over the appropriate control range necessary to maintain the optimum gas balance. Once the valve is adjusted, the amount of gas flowing through it remains constant until a subsequent adjustment is performed. The gas levels are measured by sensors and conditioning circuitry. Once the appropriate gas flow is computed by the unit control elements, the controller will cause continuous or pulsed current to flow through the valve motor until the flow is set at the appropriate level. Current will then cease to flow. When conditions cause the balance of the gasses to vary from the optimum level, the controller will again make an adjustment in the valve position.
REFERENCES:
patent: 2160326 (1939-05-01), Carbonana
patent: 2770231 (1956-11-01), Falk
patent: 2817350 (1957-12-01), Bradner et al.
patent: 3252458 (1966-05-01), Krasberg
patent: 3695261 (1972-10-01), Emmons
patent: 3727626 (1973-04-01), Kanursher et al.
patent: 3805590 (1974-04-01), Ringwall et al.
patent: 4236546 (1980-12-01), Manley et al.
patent: 4423723 (1984-01-01), Winkler et al.
patent: 4602653 (1986-07-01), Ruiz-Vela et al.
patent: 5076267 (1991-12-01), Pasternack
Asher Kimberly L.
Chen Tony D.
Rozsa Thomas I.
LandOfFree
Continuous-flow oxygen valve for oxygen rebreathers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous-flow oxygen valve for oxygen rebreathers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous-flow oxygen valve for oxygen rebreathers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1450105