Apparatus and method for monitoring flow of infusion liquid

Details Apparatus and method for monitoring flow of infusion liquid Apparatus and method for monitoring flow of infusion liquid

1991-02-13

1993-04-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250576, 250577, G01N 1506

Patent

active

052006271

ABSTRACT:
The invention includes a blood detector disposed on a medical liquid duct adjacent a connection to a duct for circulating blood outside the body. When the medical liquid ceases to flow, blood sediments in the liquid duct and is detected therein. The detector makes it possible to verify that the medical liquid is indeed flowing into the blood. The invention is applicable in numerous blood treatment techniques making use of a circuit for circulating blood outside the body, such as hemofiltration, hemodiafiltration, and plasmapheresis.

REFERENCES:
patent: 3456648 (1969-07-01), Lee et al.
patent: 3907437 (1975-09-01), Hirschfeld
IBM Technical Disclosure Bulletin, vol. 20, No. 4, Sep. 1977, pp. 1442-1443.

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