Medical ventilator

Details Medical ventilator Medical ventilator

1991-12-09

1994-05-31

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820524, A61M 1600

Patent

active

053159896

ABSTRACT:
A medical ventilator is provided which continuously controls both inspiratory and expiratory flow and pressure, including positive end expiratory pressure (PEEP), through control of a single inspiratory flow-control valve. This valve controls inspiratory flow and pressure and, during expiration, controls expiratory flow and pressure by controlling the pressure within the back chamber of an expiratory diaphragm or balloon-type valve. Feedback signals preferably are provided to the valve's controller to provide inspiratory closed-loop flow control and continuous inspiratory and expiratory closed-loop pressure control.

REFERENCES:
patent: 3976064 (1976-08-01), Wood
patent: 4527557 (1985-07-01), DeVries et al.
patent: 4838257 (1989-06-01), Hatch
patent: 5040529 (1991-08-01), Zalkin

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