Automated analyzer and automated analysis method

An automated analysis device that analyzes a blood clotting reaction comprising:

• a reaction container for mixing a sample with a reagent to cause a reaction;
• a measuring unit that irradiates light onto a reaction solution in the reaction container and that measures a scattered light intensity or a transmitted light intensity;
• a controller that processes chronological light intensity data measured by the measuring unit;
• a storage unit that stores one or more of approximation functions approximating a chronological variation of the light intensity data;
• and
• an output unit that outputs a processed result of the controller,
• wherein the controller selects one of the approximation functions stored in the storage unit,
• wherein the controller is programmed to perform:
• a first process calculating an approximated curve representing a chronological variation of the light intensity data using the selected approximation function;
• a second process detecting, using the approximated curve, an abnormal data point included in the light intensity data;
• and a third process removing the abnormal data point from the light intensity data,
• wherein the controller repeats the first process, the second process, and the third process for at least one or more times,
• and wherein the controller is configured to analyze the blood clotting reaction using at least one of the light intensity data and the approximated curve with a state using a predetermined convergence condition.

An automated analysis method for analyzing a blood clotting reaction comprising:

• a measuring step of irradiating light onto a reaction solution in a reaction container for mixing a sample with a reagent to cause a reaction and of measuring a scattered light intensity or a transmitted light intensity;
• a control step of processing chronological light intensity data measured in the measuring step;
• and
• an output step of outputting a processed result in the control step,
• wherein the control step includes a step of selecting and reading an approximation function approximating a chronological variation of the light intensity data from a storage unit that stores one or more of the approximation functions,
• wherein the control step includes a step of performing:
• a first process calculating an approximated curve representing a chronological variation of the light intensity data using the selected approximation function;
• a second process detecting, using the approximated curve, an abnormal data point included in the light intensity data;
• and a third process removing the abnormal data point from the light intensity data,
• wherein the control step includes a step of analyzing the blood clotting reaction using at least one of the light intensity data and the approximated curve,
• and wherein when detecting the abnormal data point in the third process, only one of a data point in the light intensity data having a light, intensity value larger than that of the approximated curve and a data point in the light intensity data having a light intensity value smaller than that of the approximated curve is detected as the abnormal data point.