Method and apparatus for automatic processing and analyzing of b

Chemistry: analytical and immunological testing – Measurement of electrical or magnetic property or thermal... – Of a liquid

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Details

422 63, 324687, 324697, G01N 2702, G01N 3348

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active

049620410

ABSTRACT:
A method and apparatus for processing and analyzing blood serum includes a capacitive sensing unit for receiving centrifuged test tubes and generating output signals indicative of the boundary position between the separator gel and the blood serum in the tubes, and a computer connected to the sensing unit to receive and analyze the output signals of the capacitive sensing unit. An aspirator/dispenser needle and retainer probe unit is positioned above the sensing unit and is capable of lowering a needle; under the control of the computer, to puncture the stopper of a test tube and then withdraw blood serum. The retainer probe prevents the withdrawal or loosening of the tube stopper upon withdrawal of the needle from the tube. A color sensor inspects the aspirated sample and determines whether it is suitable for analysis.

REFERENCES:
patent: 3918913 (1975-11-01), Stevenson
patent: 3971630 (1976-07-01), Sandrock
patent: 4487836 (1984-12-01), Takayanagi
patent: 4788150 (1988-11-01), Nelson
patent: 4818492 (1989-04-01), Shimizu

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