Multi-channel full-automatic dry-type fluorescence immunoassay analyzer and working method

Abstract

According to the multi-channel full-automatic dry-type fluorescence immunoassay analyzer, the sampling needle suspended above the clamping groove assembly is arranged, the sampling needle falls into the sample reagent tube under the driving of the horizontal / vertical screw rod motor, and after the plunger pump drives to suck sample liquid, the vertical lead screw motor lifts the sampling needle to leave the sample reagent tube; the horizontal lead screw motor drives the sampling needle to move to the position above the detection reagent card, the plunger pump drives the sampling needle to inject sample liquid into the detection reagent card, then the detection assembly conducts fluorescence detection on the detection reagent card, and an electric signal of fluorescence intensity is obtained. The sampling needle firstly moves into the needle washing groove to be washed and then moves into the second sample reagent tube to extract new sample liquid. By arranging the needle washing groove, the sampling needle is cleaned after one-time sampling is finished, it is guaranteed that cross contamination between sample liquid is avoided, the requirements of batch detection and multi-item detection can be met, whole-batch detection can be automatically executed, and the labor intensity of detection personnel is greatly relieved.

Description

technical field [0001] The invention belongs to the technical field of fluorescence immunoassay, and in particular relates to a multi-channel fully automatic dry-type fluorescence immunoassay analyzer and a working method. Background technique [0002] Fluorescence immunoassay (FIA) is an immunoassay technique that uses fluorescent substance-labeled antibodies or antigens as tracers, combining the specificity of antigen and antibody responses in immunology with the sensitivity of fluorescent techniques. Its principle is similar to that of ELISA. Fluorescent substances are used as labeled probes, which are combined with known antibodies or antigens to form fluorescent antibody complexes or fluorescent antigen complexes, and then the fluorescent complexes are used as capture reagents and fixed on glass cellulose membranes. Or on a carrier such as a polyester film, a nitrocellulose membrane with a paired antibody or antigen is embedded at a specific position as a detection reag...

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Problems solved by technology

[0005] In view of the above-mentioned defects of the prior art, the purpose of the present invention is to provide a multi-channel fully automatic dry-type fluorescent immunoassay analyzer and working method to solve the problem of the prior art fluorescent immunoassay analyzer. In order to avoid cross-contamination, only one Putting in a detection reagent card, the technical defect that requires manual participation in the whole process

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