Dual flow rate intravenous administration set with single pump c

Details Dual flow rate intravenous administration set with single pump c Dual flow rate intravenous administration set with single pump c

1982-05-20

1984-05-29

Truluck, Dalton L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 81, 604153, A61M 500

Patent

active

044512554

ABSTRACT:
A disposable intravenous administration set for use with a single pump chamber wherein a primary and secondary set are combined into a single I.V. pump set. The dual capacity set would be utilized in conjunction with an I.V. pump having a capacity for at least two distinct flow rates. The primary and secondary portions of the set are interconnected through a Y-type backcheck valve in the usual manner with the secondary source of liquid placed at a higher level than that of the primary. With the secondary set connected to a secondary source of liquid the pump will be set at a flow rate faster than that for the primary set. After the secondary source of liquid is depleted, the primary source will then be administered as the pump will automatically convert to the slower flow rate. In order to prevent the action of the pump from drawing any of the primary liquid into that of the secondary during administration of the secondary liquid, a restrictor is placed downstream of the backcheck valve or alternatively a drip chamber is utilized for the same purpose.

REFERENCES:
patent: 3868973 (1975-03-01), Bierman
patent: 4105029 (1978-08-01), Virag
patent: 4200095 (1980-04-01), Reti
patent: 4265240 (1981-05-01), Jenkins
patent: 4336800 (1982-06-01), Pastrone

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