Ventilator and method

Details Ventilator and method Ventilator and method

1975-06-30

1977-08-02

Rosenthal, Arnold

Valves and valve actuation

Permanent or constantly energized magnet actuator

137DIG2, 251 61, 251 75, 251 82, 137853, 137854, F16K 1518

Patent

active

040391396

ABSTRACT:
Ventilator with an inhalation phase and an exhalation phase in its operative cycle having a servo controller with an inlet adapted to be connected to supply gas under pressure and also having an outlet. The controller has control valve means movable between open and closed positions to control the flow of gas from the inlet to the outlet of the servo controller. The control valve means is an open position during the inhalation phase of the ventilator and in a closed position in the exhalation phase of the ventilator. Means is provided for supplying gases to the patient from the servo controller until a predetermined pressure has been reached. After the predetermined pressure is reached, means is provided to supply an additional flow of gases to the patient to provide an inspiratory apneustic plateau for the patient. After a predetermined period of time, the patient is permitted to exhale and thereafter the same cycle is repeated.

REFERENCES:
patent: 972752 (1910-10-01), Cowper-Smith
patent: 1568522 (1926-01-01), Mitterreiter
patent: 2293068 (1942-08-01), McLaughlin
patent: 2644477 (1953-07-01), King
patent: 3013531 (1961-12-01), Mueller et al.
patent: 3282293 (1966-11-01), Barger
patent: 3407827 (1968-10-01), Follett

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