Patent ID: 9217712
Filing Date: 2015-12-22
Classification: G01N

Abstract:
1. An automatic analyzer that measures the concentration or activity value of a component of interest in a sample, the automatic analyzer comprising: a reaction container to contain a mixture in which the sample and one or more kinds of reagents are mixed; a light source to emit a plurality of wavelengths of light through the reaction container; a detector to detect time series data of photometric values obtained by optically measuring the plurality of wavelengths of light emitted through the reaction container; an indicator computation unit configured to calculate, at each time point t of the time series data, a first difference between the value of the time series data at the time point t and at a preceding time point t−1 and a second difference between the value of the time series data at the time point t and a succeeding time point t+1, the indicator computation unit configured to compare an absolute value of the first difference with an absolute value of the second difference, and the indicator computation unit configured to use as an indicator a smaller value of the absolute value of the first difference and the absolute value of the second difference; wherein a presence or an absence of an abnormality is judged based on comparing a value of the indicator to a threshold, wherein the indicator being greater than the threshold indicates the presence of the abnormality, and the indicator being less than the threshold indicates the absence of the abnormality.