Flow control device for administration of intravenous fluids

Details Flow control device for administration of intravenous fluids Flow control device for administration of intravenous fluids

1980-11-24

1982-11-30

Apley, Richard J.

Surgery

Respiratory method or device

Ozone or ion generation

A61M 500

Patent

active

043611478

ABSTRACT:
A metering apparatus and system for controlling the administration of intravenous fluids (IV) having a flow passage within a housing connectable to a source of IV fluid and to a delivery tube terminating at an administration needle. In the metering apparatus, a metering pin is axially moveable within the passage and relative to a valve seat and defines a flow passageway and a variable area flow notch which are positionable relative to the valve seat to regulate flow from a purge to a flow blocking position. In the preferred embodiment, positioning of the metering pin is accomplished by a cam engaging a portion of the pin forming a cam follower. The cam is manually adjustable by a dial on the device to accomplish accurate, repeatable and continuous flow adjustment over the full range. The system incorporates the metering apparatus, a source of IV fluid, a drip chamber and administration means.

REFERENCES:
patent: 2980392 (1961-04-01), Greenwood
patent: 3384338 (1968-05-01), Dermody
patent: 3408040 (1968-10-01), Kraft
patent: 3410521 (1968-11-01), Sowers et al.
patent: 3785378 (1974-01-01), Stewart

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