Expiration valve control for automatic respirator

Details Expiration valve control for automatic respirator Expiration valve control for automatic respirator

1985-07-02

1986-09-16

Husar, Stephen F.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820421, A62B 902

Patent

active

046115919

ABSTRACT:
An expiration valve for an automatic respirator comprises a main body which is separable into a valve body and a diaphragm and a container which engages to a tube for supplying control pressure to one side of the diaphragm. A means for controlling such an expiration valve comprises a means for generating pressure for opening and closing the valve, a means for controlling this pressure, a pressure detector means, an exhaust means and a control means so that the valve can be electronically controlled for both the valve opening/closing functions and for the positive end expiratory pressure function.

REFERENCES:
patent: 3383484 (1968-05-01), Arp et al.
patent: 4333452 (1982-06-01), Au
patent: 4393869 (1983-07-01), Boyarsky et al.
patent: 4527557 (1985-07-01), Devries et al.

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