Patient ventilator monitor

Details Patient ventilator monitor Patient ventilator monitor

1976-11-01

1978-10-24

Recla, Henry J.

Surgery

Truss

Pad

128DIG29, A61M 1600

Patent

active

041215818

ABSTRACT:
A ventilator monitoring system wherein the ventilator is in simultaneous fluid communication with a patient circuit and an exhaust circuit. The patient circuit comprises an inspiratory branch and an expiratory branch. A first one-way valve in the patient circuit inspiratory branch permits ingress only of a gas to the patient circuit. A second one-way valve in the patient circuit expiration branch permits egress only of patient exhaust gas to an expiration valve in the exhaust circuit. A monitor in the patient circuit expiration branch, monitors only the gas actually expired by the patient and not a combination of patient expired gas and excess gas from the ventilator.

REFERENCES:
patent: 3343529 (1967-09-01), Miller et al.
patent: 3923056 (1975-12-01), Bingmann et al.
patent: 3946729 (1976-03-01), Hanna
patent: 3949749 (1976-04-01), Stewart

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