Automatic biological sample pretreatment device

Abstract

The invention discloses an automatic biological sample pretreatment device. The automatic biological sample pretreatment device comprises a magnetic field control module, a test tube mixing module, and an electronic control module; the electronic control module is taken as the key control part of the automatic biological sample pretreatment device, and is connected with the magnetic field control module and the test tube mixing module respectively; the magnetic field control module comprises a magnet elevating driving motor, a lead screw, a linear guide rail, an elevating sliding block, an elevating sliding block positioning trigger board, a magnet arrangement table fixing plate, a magnet arrangement table, a second photoelectric switch fixing plate, a third photoelectric switch fixing plate, and two photoelectric switches; the test tube mixing module comprises a first test tube arrangement table rotating fixing shaft, a second test tube arrangement table rotating fixing shaft, a test tube arrangement table rotating locating pin, a first photoelectric switch, a test tube arrangement table, and a test tube table rotating motor. The automatic biological sample pretreatment device can be used for realizing automation of biological sample pretreatment including processes such as mixing and separating; sample liquid transferring need in experimental operation is reduced; possibility of cross contamination is reduced; automation degree is high; mechanical structure is simple; and practicality is high.

Description

technical field [0001] The invention relates to a sample processing device, in particular to an automatic biological sample preprocessing device. Background technique [0002] When testing biological samples, pretreatment is an essential step. Through pre-processing, the target to be tested is separated from the complex background and enriched, and then the subsequent specific detection steps begin. Due to the complexity and uncertainty of the background of biological samples, if the pre-treatment effect is not ideal, it will easily bring difficulties to the subsequent detection steps. [0003] The entire pretreatment process generally includes steps such as adding samples, mixing, separating, enriching, and cleaning, among which separation is a crucial step. Among the current various biochemical separation methods, the separation method based on nano-magnetic beads has become a routine method in the field of biochemical detection because of its outstanding advantages. Th...

AI Technical Summary

Problems solved by technology

[0004] Traditional instrument design often considers each step of pretreatment separately, which is cumbersome to operate and has the possibility of cross-contamination, as well as relatively high purchase costs

In addition, in the traditional pure manual processing process, because of the relatively long waiting time, it is easy to cause unnecessary waste of time for the experimenter

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