Liquid-flow measuring devices, particularly useful for drip cham

Details Liquid-flow measuring devices, particularly useful for drip cham Liquid-flow measuring devices, particularly useful for drip cham

1981-04-14

1984-05-22

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

7386141, A61M 516

Patent

active

044495340

ABSTRACT:
A liquid-flow measuring device particularly useful as a drip chamber for infusion administration sets includes a housing having an internal chamber for accumulating the liquid dripping thereinto by gravity introduced via an inlet port which terminates in a first bore leading to a second bore. The housing further includes an air return leading to the juncture of the first and second bores, such that the liquid flowing through the first bore forms a liquid column in the second bore which liquid column grows by gravity until it breaks and drops into the chamber, the length and/or rate the liquid columns grow before passing into the chamber thereby providing a measurement of the rate of flow of the liquid through the device.

REFERENCES:
patent: 3030954 (1962-04-01), Thornton
patent: 3340871 (1967-09-01), Jellies
patent: 3826137 (1974-07-01), Clarke
patent: 4136693 (1979-01-01), Dyke
patent: 4291693 (1981-09-01), Todd et al.

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