Ventilator for assisting the breathing of a patient

Details Ventilator for assisting the breathing of a patient Ventilator for assisting the breathing of a patient

1990-09-26

1992-02-11

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820418, 12820511, A62B 0000

Patent

active

050867679

ABSTRACT:
A ventilator for providing low pressure air for assisting the breathing of an imfirm patient includes a pump with a cylindrical chamber having a vane mounted within the chamber for sweeping the inside surface of the chamber in a pumping action. The pump is double-acting. Ports to the pump are located in a wedge-shaped divider member permanently mounted within the chamber and extending from the chamber to a shaft driving the vane. Valves for the ducts extending from the ports to respective inlets and outlets are mounted exteriorly of the wedge-shaped dividing member. The pump can therefore have lower volume and the shaft is directly driven providing high efficiency and simple adjustment of the volume supplied to the patient.

REFERENCES:
patent: 1205338 (1916-11-01), Farley
patent: 1404116 (1922-01-01), Hafkesbrink
patent: 2468272 (1949-04-01), Phillips
patent: 3658443 (1972-04-01), Fumagalli
patent: 3916889 (1975-11-01), Russell
patent: 4058857 (1977-11-01), Runge et al.
patent: 4686974 (1987-08-01), Sato et al.

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