Flow meter administration device

Details Flow meter administration device Flow meter administration device

1977-02-04

1979-01-30

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

1282142, 73215, 137551, 222 40, 222159, A61M 516

Patent

active

041366921

ABSTRACT:
A flow meter for liquids comprising two tubes interconnected at their lower ends, one tube providing an inflow passage for liquid from a supply container and the second tube having an opening at its upper end. A thin orifice disc in sealing engagement with lower portions of the tubes has an orifice through which liquid flows, the rate of flow being governed by flow control means associated with a set incorporating the flow meter. The tubes are enclosed within a drip chamber having an outlet at its lower end. Indicia associated with the second tube mark the various flow rates. In another form of the device, a third tube adjacent the second tube and connected by their top portions with a passageway has a second orifice at its base and second indicia so that a flow meter with an extended flow rate capability is obtained. The flow meters provide greater accuracy in flow rates and the flow rates are only minimally affected by solutions of widely differing viscosities.

REFERENCES:
patent: 2479786 (1949-08-01), Stevens
patent: 3340871 (1967-09-01), Jellies
patent: 3835885 (1974-09-01), Kreyenberg
patent: 3929157 (1975-12-01), Serur
patent: 3993066 (1976-11-01), Virag

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