Instrument for measuring the hematocrit value of blood

Details Instrument for measuring the hematocrit value of blood Instrument for measuring the hematocrit value of blood

1983-01-24

1985-10-15

Karlsen, Ernest F.

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324442, 324447, G01N 2728

Patent

active

045477353

ABSTRACT:
The new instrument for taking readings of the hematocrit value from a blood sample has two electrodes with which the conductivity of the sample may be measured. The sample contacting faces of the electrodes are placed in a horizontal plane with an accurately fixed spacing therebetween so that a blood column of a given size may be formed from the sample. The sample is acted upon by ac. From a reading representative of the change in impedance the hematocrit value may be read off from a calibration curve.

REFERENCES:
patent: 3648160 (1972-03-01), Beaver
patent: 3689393 (1972-09-01), Davis
patent: 3922598 (1975-11-01), Steuer et al.
patent: 4301412 (1981-11-01), Hill et al.

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