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Method-and-apparatus-for-immunological-determinations

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Method and apparatus for immunological determinations

Details

Inventors: Partanen, Paul; Seppanen, Helena; Harjunmaa, Hannu;
Assignee: Labsystems OY (Helsinki, FI)
Primary Examiner: Warden; Robert J.
Assistant Examiner: Alexander; Lyle A.
Attorney, Agent or Firm: Hopgood, Calimafde, Kalil, Blaustein & Judlowe

The invention concerns an immunological assay system, wherein the inner face of the cuvettes is used as the solid phase. The equipment includes a displaceable carriage (8) for the cuvette set as well as, above the carriage, a dosage head (9), to which the liquid dosimeter (11) and the measurement device (19) are attached. All the operations take place automatically.

DETAILED DESCRIPTION The object of the present invention is above all to provide a fully automatic heterogeneous logical assay system.
A particular object is to provide a system in which the heating and washing steps also take place automatically and reliably even when large cuvette sets are used.
The apparatus now invented comprises: a cuvette-set carriage displaceable in the horizontal plane; a dosage head displaceable in the horizontal plane above the said carriage; a single-tip liquid dosimeter attached to the dosage head, which said dosimeter is provided with a tip that can be lowered to the bottom of the cuvette placed underneath; a dosage equipment for passing the desired liquid into the cuvette and for removing the solution placed in the cuvette out of the cuvette through the tip; as well as a measurement device attached to the dosage head.
A preferred embodiment of the invention will be illustrated in more detail by means of the attached drawings.

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