Positive pressure resuscitator

Details Positive pressure resuscitator Positive pressure resuscitator

1975-06-25

1977-02-08

Michell, Robert W.

Surgery

Truss

Pad

1281423, 128203, 128210, 137102, 137604, A62B 702

Patent

active

040067424

ABSTRACT:
Apparatus for the administration of gases such as oxygen, anaesthetic gases, and the like, incorporating a chamber adapted to communicate with a face mask, a gas delivery conduit for delivering gas into the chamber, a control valve manually operable to start and stop delivery of gas thereto, a vent opening for intermittently venting the chamber to atmosphere for exhalation, a valve stem and a valve operating button thereon, the valve stem extending through the vent opening to the exterior of the chamber, a vent closure comprising the inner surface of the valve button, closing the vent opening when the button is operated to start delivery of gas to the chamber, a pressure relief valve communicating with the chamber for discharging to atmosphere in the event of an overpressure occuring therein, while the vent closure is in position closing the vent opening; a gas bypass connection connecting with the gas delivery conduit for receiving gas independently of the control valve; a gas bypass flow valve manually operable between open and closed positions, and a gas bypass delivery conduit connecting with the chamber for delivery of gas directly thereto independently of the control valve.

REFERENCES:
patent: 1848232 (1932-03-01), Swope et al.
patent: 1848234 (1932-03-01), Swope et al.
patent: 2870763 (1959-01-01), Stanton
patent: 3717147 (1973-02-01), Flynn
patent: 3853105 (1974-12-01), Kenagy
patent: 3874378 (1975-04-01), Isaacson et al.

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