Optics: measuring and testing – Blood analysis
Patent
1979-09-17
1981-07-21
McGraw, Vincent P.
Optics: measuring and testing
Blood analysis
250458, 356244, 350 11, G01N 2164, G01N 3348
Patent
active
042795060
ABSTRACT:
Photometric apparatus, for counting the particulate components in blood and for determining the degree of particulate agglutination, which comprises a cuvette for holding a blood bearing solution and an absorbent well for holding the cuvette. The well has a passage to allow communication between the cuvette and a detector which is capable of detecting the response of the particulate material to stimulating radiation. The absorbtive well has the characteristic of absorbing radiation at the wavelength which characterizes the response of the particulate material to stimulating radiation. The well advantageously prevents the detector from detecting radiation that would otherwise be reflected by the well whereby the linearity of the response of the apparatus is greatly increased. Linearity is further enhanced by assuring full crenation of the cells with a specific reagent.
REFERENCES:
patent: 2959665 (1960-11-01), Rhees
patent: 3358148 (1967-12-01), Conklin et al.
patent: 3441352 (1969-04-01), Hughes
patent: 3810695 (1974-05-01), Shea
patent: 3847482 (1974-11-01), Sokol et al.
patent: 4101276 (1978-07-01), Anderson
McGraw Vincent P.
R. J. Harvey Instruments Corp.
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