Optics: measuring and testing – By shade or color – Fluid color transmission examination
Patent
1978-11-21
1981-06-23
Corbin, John K.
Optics: measuring and testing
By shade or color
Fluid color transmission examination
G01N 2127
Patent
active
042747449
ABSTRACT:
A new colorimeter blood analyzer having a capacity of simultaneously performing a specific blood test and reading the prothrombin time on a separate digital readout device. The program circuit module with appropriate calibration parameters which is self-referencing performs specific tests providing direct display of the desired blood constituent concentration. The analyzer provides an independent prothrombin well having a separate optical source for prothrombin time measurement providing direct display on an independent readout display. The analyzer also has a built-in digital readout quartz crystal timing device which can be operated when prothrombin time analysis is not conducted. The entire analyzer is contained in a compact console which includes controlled incubated storage for blood test samples together with insertion cavities for both constituent concentration and prothrombin time analysis. The results of each analysis are so normalized by the blood analyzer that a numerical readout is presentable on an independent readout device and these results are substantially instantaneously displayed subsequent to initiation of any given test in the analyzer. A control circuit for the tungsten filament lamp used in the chemical analyses increases the useful life of the lamp by limiting the amount of time that the lamp is operated at its highest voltage.
REFERENCES:
patent: Re21907 (1941-09-01), Balsley
patent: 3833864 (1974-09-01), Keiss et al.
Black Donald E.
Chae Charles H.
Shah Ramesh M.
Arnold Bruce Y.
Corbin John K.
Medico Electronic, Inc.
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