Sample processing apparatus and cleaning method

摘要

The present invention is to present a sample processing apparatus, comprising: a sample processing mechanism which comprises a flow channel to be used for processing a sample, and performs a sample processing operation for processing the sample using the flow channel and a cleaning operation for cleaning the flow channel; and a controller for controlling the cleaning operation by the sample processing mechanism, based on an elapsed time since a previous cleaning operation by the sample processing mechanism.

主权项

1. A sample processing apparatus, comprising:
a sample processing mechanism which comprises
a mixing chamber configured to be used for processing a measurement sample from a reagent and a sample which is a blood or a urine,a detector configured to measure the measurement sample, anda flow channel configured to supply the measurement sample to the detector from the mixing chamber, andwherein the sample processing mechanism performs a sample processing operation for preparing the measurement sample and measuring the measurement sample; and a processor and a memory storing a computer program that enables the processor to:
control the sample processing mechanism to perform the sample processing operation and obtain a detection result of the measurement sample,control the sample processing mechanism to perform a shutdown cleaning operation by using a cleaning agent in a shutdown operation of the sample processing apparatus, wherein the cleaning agent does not include the reagent; andcontrol the sample processing mechanism to perform a cleaning operation sequence for cleaning the mixing chamber, the detector and the flow channel when the sample processing mechanism performs a start-up operation, the cleaning operation sequence comprising a vacant measurement operation performed by using the reagent and suctioned air rather than the sample, the vacant measurement operation is changed depending on a time elapsed since the shutdown operation, and a blank measurement operation performed without using the sample,wherein the computer program enables the processor to control the sample processing mechanism to perform the vacant measurement operation for a longer time as the elapsed time is longer, andthe sample processing mechanism is configured to prepare a measurement sample from the sample and the reagent in the sample processing operation, prepare a vacant measurement sample, prepare a blank measurement sample without the sample using the reagent in the blank measurement operation,the processor is programmed to:control the sample processing mechanism to perform the vacant measurement operation and not to obtain a detection result of the vacant measurement sample, andcontrol the sample processing mechanism to perform the blank measurement operation and obtain a detection result of the blank measurement sample.