Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1982-06-17
1984-10-02
Goldberg, Gerald
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
G01N 1504
Patent
active
044740565
ABSTRACT:
A novel meter is provided for measuring erythrocyte settling rates. It includes (a) a base supporting rack adapted to hold an array of tubes at an optimum settling angle and at least one tube adapted to contain blood samples, the tube including a window of predetermined length at the upper end thereof, the window permitting passage of ambient light therethrough. A timer is provided which is actuated by the passage of ambient light through the window when the tube contains blood, to determine the erythrocyte settling rate. This timing is achieved by signalling that a preset period of time has elapsed between when a minimum amount of light passes through the window, indicative of the presence of erythrocytes in the area of the window, and when a maximum amount of light passes through the window, indicative of the substantial absence of erythrocytes in the area of the window. By this invention, a blood test may be done in 5 to 15 minutes. A doctor (or probably his nurse) can perform the test while continuing the examination of the patient and have the results in time for diagnosis.
REFERENCES:
patent: 2379158 (1943-02-01), Kalischer
patent: 3952579 (1976-04-01), Nakajima
patent: 4118974 (1978-10-01), Nozaki et al.
patent: 4182161 (1980-01-01), Greenfield
Hocking Martin B.
McOrmond Philip M.
O'Brien Robert N.
Thornton Kenneth R.
Goldberg Gerald
Roskos Joseph W.
University of Victoria
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