Optics: measuring and testing – Blood analysis
Patent
1978-06-16
1981-02-24
Corbin, John K.
Optics: measuring and testing
Blood analysis
250577, 356442, G01N 2117, G01N 2101, G01N 1504
Patent
active
042524385
ABSTRACT:
For measuring the speed of movement of one phase in another, and particularly the rate of sedimentation of corpuscles in blood plasma, a container is filled with a blood sample, a light beam is directed through the container and an image of a vertical plane in the container traversed by the beam is formed in a measuring plane, the light intensity at two vertically spaced regions of the measuring plane is measured, the container is moved until a certain light intensity relationship exists between the two regions, indicating that the image of the boundary of the one phase in the other phase is located between the regions, and after a selected time interval the container is raised until the same light intensity relationship is established between the two regions and the distance through which the container has been raised is indicated.
REFERENCES:
patent: 2884783 (1959-05-01), Spengler et al.
patent: 3009388 (1961-11-01), Polanyi
patent: 3279305 (1966-10-01), Muta et al.
patent: 3715761 (1973-02-01), Drekter et al.
patent: 3810696 (1974-05-01), Hutchins, Jr.
patent: 4118974 (1978-10-01), Nozaki et al.
Meyer-Bertenrath, "Leitfaden der Labormedizin", Deutscher Arzteverlag 1975, pp. 155.
Haina Diether
Omet Reinhard
Waidelich Wilhelm
Corbin John K.
Gesellschaft fur Strahlen- und Umweltforschung mbH Munchen
Punter Wm. H.
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