Electricity: measuring and testing – Determining nonelectric properties by measuring electric... – Erosion
Patent
1979-04-20
1980-12-16
Smith, Alfred E.
Electricity: measuring and testing
Determining nonelectric properties by measuring electric...
Erosion
235 92PC, G01R 2722
Patent
active
042400295
ABSTRACT:
Apparatus for counting platelets and red blood cells in a whole blood sample includes an aperture type transducer. Alarm techniques are provided for indicating defects in the counting procedure due to excessive noise or red cell fragments, small (microcytic) red cells, and giant (macro) platelets.
REFERENCES:
patent: 2656508 (1953-10-01), Coulter
patent: 4110604 (1978-08-01), Haynes et al.
patent: 4165484 (1979-08-01), Haynes
Becton Dickinson & Company
O'Hare Thomas P.
Smith Alfred E.
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