Method and apparatus for timing intravenous liquid drip rate

Details Method and apparatus for timing intravenous liquid drip rate Method and apparatus for timing intravenous liquid drip rate

1976-01-14

1977-09-13

Gruber, Felix D.

Registers

Transfer mechanism

Traveling pawl

128214E, 235 92TF, 235 92FQ, 328 39, 328 46, G06F 1542, H03K 378

Patent

active

040484742

ABSTRACT:
Accurate manual adjustment of a desired delivered flow rate in an intravenous liquid injection system is expedited and simplified. A programmable counter, fed by a pulse train of known repetition rate, is pre-set in accordance with the volume of liquid to be delivered, the size of the individual liquid drops, and the desired length of time during which the liquid is to be delivered. The counter provides a pulsed visible and/or audible indication at the drip rate determined by the pre-set conditions. The operator, upon comparison of the actual drip rate with the pulsed indication rate, can readily adjust the drip rate to coincide with the indications. The apparatus may include a pulse per unit time readout capability.

REFERENCES:
patent: 3375449 (1968-03-01), Ribour et al.
patent: 3832640 (1974-08-01), Cederquist et al.
patent: 3894389 (1975-07-01), Miura et al.
patent: 3956705 (1976-05-01), Mayer
patent: 3970941 (1976-07-01), Leuschner

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