AUTOMATIC ANALYZER AND METHOD FOR DETECTING MEASUREMENT VALUE ABNORMALITIES

摘要

An automatic analyzer detects measurement value abnormalities stemming from reaction process anomalies caused by the presence of foreign matter or bubbles. It is determined whether the results of concentration calculation based on light quantity data from multiple target detectors each fall within an applicable determination range. If the results fall within the determination range, an average value of the results of concentration calculation with the target detectors is calculated, and if not, an out-of-determination-range flag is given. A default fluctuation range is retrieved regarding the average value of the results of concentration calculation. The fluctuation range of the results of concentration calculation with the multiple target detectors is calculated. If the fluctuation range is found to fall within the default range, the results of concentration calculation are output to a display; and if outside the default range, a reexamination request is displayed with an added measurement value abnormality alarm.

主权项

1. An automatic analyzer for analyzing a sample, comprising:
a reagent container storage mechanism which stores reagent containers; a reaction cell storage mechanism which stores reaction cells; a reagent pipetting mechanism which pipettes a reagent from the reagent container to the reaction cell; a sample pipetting mechanism which pipettes the sample into the reaction cell; a plurality of light intensity detectors which analyze the sample in the reaction cell; a display unit which displays results of analysis of the sample, and a control unit which controls the reagent container storage mechanism, the reaction cell storage mechanism, the reagent pipetting mechanism, the sample pipetting mechanism, the light intensity detectors, and the display unit, the control unit calculating concentrations of the sample using a plurality of detection values of the same sample from each of the light intensity detectors, the control unit further calculating fluctuation ranges of the calculated concentrations to determine whether each of the calculated fluctuation ranges falls within a predetermined acceptable fluctuation range, the control unit causing the display unit to indicate that a reaction process anomaly has occurred if the fluctuation range of the concentration calculated from the detection value of any one of the light intensity detectors falls outside the acceptable fluctuation range.