Optics: measuring and testing – Blood analysis
Patent
1977-03-16
1979-01-16
Corbin, John K.
Optics: measuring and testing
Blood analysis
356 40, 422 67, 422109, G01N 3316
Patent
active
041346785
ABSTRACT:
Method and apparatus for the simultaneous automatic analysis and sequential displaying in digital form of a plurality of parameters of whole or hemolyzed blood samples, such as total hemoglobin, percent oxyhemoglobin, percent carboxyhemoglobin, percent methemoglobin (in each case percent meaning percentage of total hemoglobin) and oxygen content. The apparatus is an electro-optical instrument including a servo-controlled spectral line source, such as a hollow cathode lamp, a laser etc., a ratiometric logarithmic amplifier of minimized dynamic range, a fluid-flow system of improved design that combine to measure the absorbances of blood samples at a plurality of wavelengths defined and generated by the spectral line source, to calculate the above parameters based on the absorbances by the use of a micro-computer and associated circuitry absorbances, to display automatically and digitally one of the parameters, and then to display digitally seriatim the remaining parameters responsive to operator intervention.
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patent: 3690833 (1972-09-01), Ferrari
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Brown Leslie J.
DeGironimo Bruno
Mountain Charles F.
Stevens Richard B.
Vasconcelos Fernando M.
Corbin John K.
Dacey G. Eugene
Instrumentation Laboratory Inc.
Punter Wm. H.
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