Particle counting apparatus utilizing various fluid resistors to

Details Particle counting apparatus utilizing various fluid resistors to Particle counting apparatus utilizing various fluid resistors to

1977-03-23

1979-08-21

Corcoran, Robert J.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Erosion

235 92PC, 364555, 128 1R, G01N 2700, A61B 500

Patent

active

041654846

ABSTRACT:
Apparatus and a method therefor for counting platelets and red blood cells in a whole blood sample includes an aperture type transducer having front sheath and back sheath flows but also including various fluid resistors to maintan proper pressure differentials and which are driven from a common air supply. The whole blood sample is injected through the aperture by use of a small bore tube also driven by the common air supply.

REFERENCES:
patent: 4014611 (1977-03-01), Simpson et al.
patent: 4070617 (1978-01-01), Rachel et al.
Spielman et al., Improving Resolution in Coulter Counting; Journal of Colloid & Interface Science; vol. 26, pp. 175-182 (1968).
Byerly et al., Machine For Rapidly Counting Etc.; Rev. of Scien. Inst., vol. 46, No. 5, May 1975, pp. 517-522.
Thom, Reinhard; Vergleichende Untersuchuengen zur Electronischen Zellvolumen-Analyse; AEG Telefunken Pub., N1/EP/1968.

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