Method for cleaning reactants and sample analyzer

Abstract

The invention discloses a method for cleaning reactants and a sample analyzer. According to the method for cleaning the reactants, a mixing chamber and a measuring chamber which controllably communicate with each other are provided, when the measuring chamber and the mixing chamber are cleaned, a replacement type cleaning mode is adopted, so that a sample in the measuring chamber is replaced by a cleaning liquid firstly, and then the cleaning fluid in the measuring chamber is replaced by a diluent, so that cleaning is completed, the mixing chamber also has the similar condition, wherein a sample in the mixing chamber is replaced by the cleaning liquid firstly, and then the cleaning fluid in the mixing chamber is replaced by the diluent, so that cleaning is completed, therefore, the problem that the dilution concentration of the cleaning fluid needs to be accurately controlled so as to prevent the influence caused by the dilution concentration on the cleaning result is solved, accordingly, in the whole cleaning process of the method, the process of diluting the cleaning liquid is also avoided, so that the whole measuring period is directly shortened, and the measuring speed is increased.

Description

technical field [0001] The application relates to a reactant cleaning method and a sample analyzer. Background technique [0002] C-reactive protein (C-reaction protein, CRP) is an acute phase protein synthesized by liver cells when the body is subjected to inflammatory stimuli such as microbial invasion or tissue damage. CRP levels will increase. According to the characteristic of CRP, modern medicine often detects the CRP index in the patient's blood sample, and then diagnoses the patient according to the test result. [0003] The device for measuring CRP index is generally called CRP immunoassay instrument. In order to ensure the accuracy of the measurement of CRP index, the immunoassay instrument needs to clean the sampling parts and the measurement parts for testing samples to obtain test results after each measurement is completed. , if it is not cleaned or the cleaning is not in place, it will affect the subsequent CRP index measurement, resulting in the inability t...

AI Technical Summary

Problems solved by technology

The disadvantages of this cleaning method at least include: First, it is necessary to accurately control the diluted concentration of the cleaning solution, because the cleaning effect of the immune reactant depends on the dilution concentration of the cleaning solution. The greater the impact; the second is to add a process of diluting the cleaning solution, which will increase the entire measurement cycle and reduce the measurement speed

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