Multi-mode demand valve

Details Multi-mode demand valve Multi-mode demand valve

1983-07-20

1986-02-25

Recla, Henry J.

Surgery

Respiratory method or device

Means using rescuer's breath for supplying respiratory gas...

12820426, 12820513, 12820524, A01M 1600

Patent

active

045721750

ABSTRACT:
A multi-function valve for administration of gases having a valve chamber with an administration opening for delivery of gases to a patient, a pressurized gas inlet, an inlet valve with an arm extending into the interior of the chamber, a resuscitation fluid inlet opening into such chamber, a diaphragm dividing the chamber into two halves with the resuscitation inlet on one side and the administration opening and the pressurized gas inlet on the opposite side, the diaphragm having a contact portion movable into and out of contact with the arm, and an opening in the diaphragm for fluid flow from one side of the chamber to the other, the opening being sized to permit the diaphragm to respond to fluid flow in the chamber, and cause operation of the gas inlet valve.

REFERENCES:
patent: 2598525 (1952-05-01), Fox
patent: 3249107 (1966-05-01), Delest
patent: 3474785 (1969-10-01), Jansson
patent: 3795257 (1974-03-01), Fabish et al.
patent: 3895626 (1975-07-01), Elfstrand
patent: 4249528 (1981-02-01), Mathes
patent: 4411285 (1983-10-01), Oswell

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