Intravenous set

Details Intravenous set Intravenous set

1982-08-06

1985-11-05

Cohen, Lee S.

Surgery

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

Treating material introduced into or removed from body...

604247, 128DIG13, A61M 516

Patent

active

045511349

ABSTRACT:
An intravenous set is described which includes a housing which defines three separate chambers: an uppermost valve chamber, an intermediate volumetric chamber, and a lowermost drip chamber. The valve chamber is provided with an externally actuated structure for interrupting the flow of fluids into the volumetric chamber. In alternate embodiments, this valve member can include a magnetically responsive element, a diaphragm, or a pinch tube. A volumetric chamber is provided with a predetermined volume and is adapted for remote sensing of the fluid level inside the volumetric chamber. Fluids pass from the volumetric chamber into the drip chamber where they are formed into individual drops. The drip chamber is adapted to allow remote detection of drop formation and drop counting. A controller is described which, when used in conjunction with the described intravenous set, provides extremely accurately controlled rates of infusion.

REFERENCES:
patent: 3252623 (1966-05-01), Corbin et al.
patent: 3469574 (1969-09-01), Durkan
patent: 3609379 (1971-09-01), Hildebrandt
patent: 4244364 (1981-01-01), Grushkin

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