Respirator valve for respirators

Details Respirator valve for respirators Respirator valve for respirators

1977-10-11

1979-10-30

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

1281422, 137DIG9, A62B 704

Patent

active

041724674

ABSTRACT:
A respirator valve for respirators with a pressure-responsive control of the breathing pulses of a patient, comprises, a valve housing which has a pressure chamber therein with a connecting breathing line to the patient. First and second control diaphragms close respective sides of the pressure chamber and are flexible in response to pressure variations in the pressure chamber. A connecting member disposed between the diaphragms is moved by the flexing of the diaphragms so as to operate a lever mechanism for shifting a valve member to open or close a valve seat in a connecting line to a pressurized breathing gas for supplying the breathing gas into the pressure chamber and into the patient in accordance with variations in the patient's efforts to inhale and to cause pressure variations in the pressure chamber to actuate the diaphragms.

REFERENCES:
patent: 3070108 (1962-12-01), Fischer
patent: 3724482 (1973-04-01), Ekstrom

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