Method for the intravenous administration of plural solutions th

Details Method for the intravenous administration of plural solutions th Method for the intravenous administration of plural solutions th

1981-07-02

1984-02-07

Rosenbaum, C. Fred

Surgery

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

Material introduced into and removed from body through...

604 93, A61M 3100

Patent

active

044300743

ABSTRACT:
The present invention relates to an efficient method of automatically and sequentially intravenously administering two separate solutions to a patient by utilizing a Y-type IV set provided with a single drip chamber monitoring station disposed below from a Y-connecting point. Solution from a first container is directed through a first leg, a Y-connecting point and a single drip chamber monitoring station. A portion of this first solution is operative to engage a check valve interposed within a second leg leading from a second solution container to the Y-connecting point. This engagement causes the check valve to close and prohibits flow of solution from said second container to the Y-connecting point. Once the first solution container has emptied, the check valve is deactivated, and solution from the second container can automatically in sequential fashion move to the Y-connecting point. From the Y-connecting point, solution from the second container is directed to and through the single drip chamber monitoring station. By providing the single drip chamber monitoring station below the Y-connecting point, an intermediate pressure head is formed in both the first and second legs between the respective solution containers and the drip chamber monitoring station. This intermediate pressure head formed by the respective solutions tends to drive and force the respective solutions through the drip chamber monitoring station more efficiently.

REFERENCES:
patent: 3563090 (1971-02-01), Deltour
patent: 3921630 (1975-11-01), McPhee
patent: 3941126 (1976-03-01), Dietrich et al.
patent: 4105029 (1978-08-01), Virag
patent: 4155362 (1979-05-01), Jess
patent: 4219912 (1980-09-01), Adams
patent: 4336800 (1982-06-01), Pastrone
patent: 4355639 (1982-10-01), Di Salvo
patent: 4383252 (1983-05-01), Purcell

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