Automatic analysis apparatus and operating method therefor

An automatic analysis apparatus, comprising:

• a reaction cup loading mechanism configured to supply and carry a reaction cup to a cup assignment station;
• a sample unit configured to hold a sample;
• a sample dispensing mechanism configured to aspirate the sample and discharge the sample into a reaction cup at a sample addition station;
• a reagent unit configured to hold a reagent;
• a reagent dispensing mechanism configured to aspirate the reagent and discharge the reagent into a reaction cup at a reagent addition station;
• a reaction plate, which is configured to be a circular plate structure, which has a plurality of placement stations for placing reaction cups, and which is capable of rotating the reaction cups in the placement stations so as to transfer the reaction cups in the reaction plate and incubate respective reaction solutions in the reaction cups;
• a mixing mechanism configured to mix the reaction solution to be mixed in each reaction cup;
• a measurement unit configured to measure the reaction solution to be measured in each reaction cup;
• at least two magnetic separation units, each of which operates independently and is configured to perform magnetic separation cleaning on the reaction solution in each reaction cup;
• wherein each of the at least two magnetic separation units comprise a magnetic separation plate;
• wherein each of the at least two magnetic separation units comprise a substrate injection mechanism with a substrate injection pin;
• the substrate injection pins are respectively connected to a substrate syringe and the substrate is injected into a respective reaction cup in a respective magnetic separation unit, the substrate syringe is further successively connected to substrate bottles through a substrate aspiration valve and a substrate bottle change-over valve, and the substrate bottle change-over valve is configured to select one of the substrate bottles to be connected;
• a transfer mechanism configured to at least transfer a reaction cup among the reaction cup loading mechanism, the reaction plate, the mixing mechanism and the at least two magnetic separation units;
• and
• a control unit configured to at least control operations and a time sequence of the sample dispensing mechanism, the reagent unit, the reagent dispensing mechanism, the reaction plate, the mixing mechanism, the measurement unit, the at least two magnetic separation units and the transfer mechanism.