Weak light detection device

Abstract

The invention relates to a weak light detection device, belonging to the field of chemiluminescent immunoassay analyzers. The device comprises a measuring hood and a photoelectric sensor. An assay cup inlet and an assay cup outlet are arranged on the wall of the measuring hood. The device is characterized in that a measuring rotating disc closely attached onto the inner wall of the measuring hood is arranged in the measuring hood, an assay cup holding hole which can be communicated with the assay cup inlet and the assay cup outlet through rotation is arranged on the measuring rotating disc, a measuring port is arranged on the wall of the measuring hood, one end of the measuring port right faces to the rotating trajectory of the mouth of an assay cup in the holding hole, the photoelectric sensor is installed at the other end of the measuring port, the measuring port and the holding hole on the measuring rotating disc are not communicated with the assay cup inlet or the assay cup outlet. Thereby natural light is almost disappeared when the natural light reach the photoelectric sensor at the other end of a measuring chamber, the interference of the natural light is eliminated, the noise of the background for detecting luminescent particles is low and the accuracy of the detected data is greatly improved. The entire detection process is conducted in a circulating device which has the advantages of simple structure and easy automation realization.

Description

technical field [0001] The invention relates to the technical field of medical device detection, in particular to a weak light detection device for a chemiluminescence immunoassay analyzer. Background technique [0002] In recent years, with the development of society and the advancement of biomedical technology, the number of chemiluminescent immunoassay tests performed each year has increased significantly. Not only is the demand for personalized rapid testing increasingly urgent, but also the accuracy and precision of quality testing data. It is also very demanding. The detection principle of the chemiluminescence immunoassay analyzer is to use the specific reaction of the antigen and the antibody, the free energy released by the biochemical reaction excites the intermediate, returns from the ground state to the excited state, the energy is released in the form of photons, and the photoelectric converter converts the weak light signal It can be converted into an identifi...

AI Technical Summary

Problems solved by technology

In the existing technology, the detection devices used in chemiluminescent immunoassay equipment mostly adopt fully enclosed light protection measures, which are not easy to realize automation and cannot meet the needs of batch and large-scale detection projects. If the light protection method is not appropriate, natural light will interfere with the samples. Accuracy and precision of testing data during testing

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