Immunoanalyzer and its cleaning device

Abstract

The present invention relates to a cleaning device and an immune analyzer. The cleaning device includes a bracket, a bearing component, a magnetic attraction component, a liquid injection component and a liquid suction component, wherein: the bearing component is arranged on the bracket and can be used in the first and second working The reciprocating movement between the positions, at least one cleaning position is set on the carrying component; the magnetic attraction component is arranged close to the second station and is used to absorb the magnetic particle conjugate; the liquid injection component includes a liquid injection part, and the liquid injection part is used to inject The cleaning liquid is injected into the reactor at the working position; the liquid suction assembly includes a liquid suction part that can correspond to the cleaning position one by one. The liquid suction part can move relative to the bracket to extend into or out of the reactor. The liquid suction part is used for The waste liquid is sucked from the reactor at the second working position; when the reactor moves back and forth several times between the first and second working positions following the bearing assembly, the same reactor sucks the waste liquid through the same liquid suction piece. In this way, the carryover of the liquid-absorbing parts can be avoided and the cleaning effect can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of in vitro diagnosis, in particular to an immune analyzer and a cleaning device thereof. Background technique [0002] Fully automatic immunoassay is based on the immunological reaction of antigen-antibody binding, using enzyme labeling, lanthanide labeling or chemiluminescent reagent labeling antigen-antibody, through a series of cascade amplification reactions, the optical signal or electrical signal and the analyte are combined. The antigen or antibody to be tested in the human sample is analyzed according to the concentration, etc. [0003] In the measurement and analysis, it involves the washing and separation of the analyte (Bound-free, hereinafter referred to as washing), that is, the magnetic particle, antigen and labeled antibody complex (ie the analyte) after binding is captured by magnetic force, and finally the unresolved substance is removed. bound free label and other interfering impurities. ...

AI Technical Summary

Problems solved by technology

[0004] The traditional part of the cleaning device uses a rotating disc to drive the reaction vessel to rotate, so as to realize the "serial cleaning" of the analyte in the reaction vessel; but the structure of the device is complicated, and it will form a carry on the next reaction vessel during the process of pumping waste liquid. Contamination, which affects analytical performance

Other cleaning devices use multiple magnets at different positions to absorb the object to be tested, resulting in poor cleaning effect

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