Cleaning device in fully-automatic chemiluminescence immunity analyzer

Abstract

The invention relates to a cleaning device in a fully-automatic chemiluminescence immunity analyzer. The cleaning device comprises a first disk, a second disk and a cleaning piece, wherein a driving mechanism drives the first disk to rotate; a plurality of analysis containers are arranged at the peripheral part of the first disk at intervals, and magnetic microspheres used for adsorbing body fluid samples to be detected are put in the analysis containers; the second disk is coaxially arranged above a rotating disk, and the diameter of the second disk is smaller than the diameter of the first disk; a plurality of electromagnets are arranged at the peripheral part of the second disk at intervals; the cleaning piece is arranged on one side of the first disk and is opposite to at least one of the electromagnets in the second disk. The first disk rotates to drive the analysis containers on the first disk to selectively stay in the position of the cleaning piece. The cleaning device only needs one rotation disk and a plurality of electromagnets so as to realize that the magnetic microspheres in each analysis container are selectively controlled to be in an adsorption state or a non-adsorption state according to the demands, and the cleaning efficiency is greatly increased.

Description

technical field [0001] The invention relates to a medical device in the field of in vitro detection, in particular to a cleaning device in a fully automatic chemiluminescence immunoassay analyzer using magnetic microspheres as a reaction carrier. Background technique [0002] The automatic chemiluminescent immunoassay analyzer is an instrument that can perform immunological quantitative analysis on patient's body fluid samples, and can test anemia, cardiovascular disease, congenital diseases, sex hormones, infectious diseases, metabolic functions, tumor markers, therapeutic drugs Monitor and thyroid and other diseases. The application of automatic chemiluminescence immunoassay analyzer makes the inspection process fully automatic, improves the work efficiency of immunoassay, eliminates human subjective error, stabilizes the quality of immunoassay, and provides a reliable and efficient method for clinical immunoassay. way. [0003] In an automatic chemiluminescent immunoass...

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Problems solved by technology

[0005] But the prior art has the following defects: 1) when the magnetic microsphere solid phase carrier is cleaned, because it is attached to the cup wall, other magnetic microspheres except the surface of the magnetic microsphere layer are difficult to clean sufficiently, resulting in Insufficient cleaning

2) The magnetic microspheres are suspended in the liquid. Even under the magnetic field of the permanent magnet, the entire adsorption process usually takes tens of seconds, which greatly affects the work efficiency

And if a plurality of permanent magnets are set on the rotation path of the disc, although the magnetic microspheres in the cuvettes to be cleaned can complete the adsorption process during the rotation of the disc, since a plurality of cuvettes are arranged on the disc, , these permanent magnets will also cause undue magnetic disturbance to other cuvettes that may be in progress

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