Automatic analyzing device
A rinse mechanism rinses reaction cuvettes with first and second detergents. An R 1 reagent pipetting mechanism 8 rinses the reaction cuvettes that have been rinsed by the rinse mechanism with a special detergent. A counting unit counts and stores in a storage unit a use frequency of each reaction cuvette for a specific reagent item. A determining unit determines whether the counted use frequency exceeds a predetermined threshold N 1 . A control unit controls the R 1 reagent pipetting mechanism such that, in a case where the counted use frequency exceeds the predetermined threshold N 1 , the reaction cuvettes, which have exceeded the predetermined threshold N 1 , are soaked with the special detergent only for a period equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period when a sample is pipetted, by the total number of reaction cuvettes and a predetermined integer.
1. An automatic analyzing device comprising:
a retaining mechanism that retains a plurality of reaction cuvettes;
a reagent disk that retains a plurality of reagent containers containing a plurality of types of reagents;
a rinse mechanism including a plurality of suction nozzles and a plurality of discharge nozzles that rinses the reaction cuvettes;
a detergent feeding mechanism disposed adjacent to the retaining mechanism configured to dispense a first detergent to one or more reaction cuvettes;
a code reader that reads code information disposed on each of the plurality of the reagent containers; and
a control unit coupled to the rinse mechanism, the detergent feeding mechanism, and the code reader, that is programmed to:
read code information from one or more of the reagent containers and determine a use frequency of each type of reagent based on the read code information,
determine whether the use frequency exceeds a predetermined threshold N 1 ,
upon determining that the use frequency exceeds the predetermined threshold N 1 , control the detergent feeding mechanism to dispense the first detergent into only each of the reaction cuvettes that have exceeded the predetermined threshold N 1 for a period of time equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period of time when a sample is pipetted, by the total number of the plurality of reaction cuvettes and a predetermined integer.
2. The automatic analyzer according to claim 1 , wherein
the control unit is further programmed to:
control the detergent feeding mechanism ( 8 ) such that in a case where the counted use frequency exceeds a predetermined threshold N 2 , which is larger than the predetermined threshold N 1 , the reaction cuvettes, which have exceeded the predetermined threshold N 2 , are soaked without assigning a new measurement to the reaction cuvettes that have exceeded the predetermined threshold N 2 , even when there is a request for a new measurement, in a case where the counted use frequency exceeds the predetermined threshold N 1 , and is equal to or smaller than the prescribed threshold value N 2 , the reaction cuvettes, which have exceeded the predetermined threshold N 1 , are not soaked during measurement, and the reaction cuvettes that have exceeded the predetermined threshold N 1 are soaked when there is not a request for a new measurement after the reaction cuvettes that have exceeded the predetermined threshold N 1 are measured.
3. The automatic analyzer according to claim 1 , wherein
the rinse mechanism is configured to rinse the reaction cuvettes with a second detergent different from the first detergent.
4. The automatic analyzer according to claim 1 , wherein
the rinse mechanism is configured to rinse the reaction cuvettes with a second detergent that is acid-based and different from the first detergent, and a third detergent that is alkali-based and different from the first detergent and the second detergent.