Method and means for dispensing two respirating gases by effecti

Details Method and means for dispensing two respirating gases by effecti Method and means for dispensing two respirating gases by effecti

1987-10-13

1989-05-23

Coven, Edward M.

Surgery

Respiratory method or device

Means for mixing treating agent with respiratory gas

12820322, 12820329, A61M 1500

Patent

active

048320145

ABSTRACT:
A device for administering a mixture of oxygen and a second gas to a patient premeasures and temporarily stores single dose quantities of each gas and dispenses each dose in synchronization with the patient's respiratory cycle. A sensor produces a signal upon the onset of an inhalation and, in immediate response to the sensor signal, the dose quantities of each gas are simultaneously displaced into a common conduit for breathing by the patient.

REFERENCES:
patent: 1309686 (1919-07-01), Heidbrink
patent: 2576747 (1951-11-01), Bryant
patent: 3292824 (1966-12-01), Arp et al.
patent: 3737073 (1973-06-01), Lupert
patent: 3788313 (1974-01-01), Arp et al.
patent: 4462398 (1984-07-01), Durkan et al.
patent: 4621747 (1986-11-01), van der Velde et al.

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