Self-metering fluid analysis device

Details Self-metering fluid analysis device Self-metering fluid analysis device

1991-12-06

1993-05-04

Housel, James C.

Chemistry: analytical and immunological testing

Biological cellular material tested

436165, 436169, 436178, 436180, 436807, 435 4, 435810, G01N 3122, G01N 3352

Patent

active

052081630

ABSTRACT:
A method for detecting blood analytes with a sample volume as low as 2 microliters in the hematocrit range of 0% to 60%, or higher. This is accomplished by using a diagnostic device comprising a housing with various chambers and compartments for processing the blood. A sample application port in the housing is used to introduce blood into a metering chamber. From the metering chamber, the blood flows to a reaction chamber for analyzing blood analytes. Blood entering the metering chamber flows into a fluid capillary which indicates that an adequate amount of blood has been received in the metering chamber. The reaction compartment includes a reagent and a filter, the latter of which is disposed between the metering chamber and the reagent so that the reagent reacts with the filtered blood.

REFERENCES:
patent: 4256693 (1981-03-01), Kondo et al.
patent: 4753776 (1988-06-01), Hillman et al.
patent: 4756884 (1988-07-01), Hillman et al.
patent: 4761381 (1988-08-01), Blatt et al.

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