I.V. Administration flow rate gauge

Details I.V. Administration flow rate gauge I.V. Administration flow rate gauge

1980-06-09

1982-01-26

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

7386163, A61M 500

Patent

active

043123422

ABSTRACT:
An apparatus for measuring the flow of medical liquids within an intravenous solution administration set comprises a primary tube, a secondary tube and a tertiary tube. A constricter mechanism is postiioned in the primary tube proximate the opening to the tertiary tube in order to restrict the flow of liquid therethrough. As a result, a pressure differential is created between the secondary tube and the tertiary tube when liquid flows through the primary tube. At least a portion of the secondary or tertiary tubes are transparent in order to determine the relative position of liquid in the tube. a series of markings on the tubes represent designated rates of flow. Consequently, the relative position of the liquid is used to display the rate of flow within the system.

REFERENCES:
patent: 2337921 (1943-12-01), Petroe
patent: 2439723 (1948-04-01), Engdahl
patent: 3326041 (1967-06-01), Reed
patent: 3898637 (1975-08-01), Wolstenholme
patent: 3982534 (1976-09-01), Buckman
patent: 4079737 (1978-03-01), Miller
patent: 4186740 (1980-02-01), Guerra
patent: 4269222 (1981-05-01), Palti
Brochure: Travenol Infusion Controller, Published Mar. 1979.
Brochure: The IVAC 230 Controller, IVAC Corp. Jun. 1979.

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