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Liquid suction method in sample detection process

A sample detection, sample technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc.

Active Publication Date: 2021-06-01
SICHUAN ORIENTER BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above-mentioned technical problem of further optimizing the existing technology to ensure accurate sample suction and high efficiency while avoiding cross-contamination, which is undoubtedly of great significance to the development of the IVD industry, the present invention provides a sample detection process. Liquid absorption method, using this washing liquid method, can effectively solve the above-mentioned problems of ensuring accurate sampling, high efficiency, and avoiding cross-contamination

Method used

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  • Liquid suction method in sample detection process
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Examples

Experimental program
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Effect test

Embodiment 1

[0039] like figure 1 As shown, the liquid suction method in the sample detection process is based on the pipeline system as follows: including a sample tube, a first pipe section 6, a three-way valve 8, a fourth pipe section 13, a pump, and a third pipe section 12 ;

[0040] One end of the sample tube is connected with a sampling needle 2, and the other end is a sample outlet;

[0041] One end of the first pipe section 6 is connected to the sample tube through the first connector 4, and the other end is connected to the first nozzle of the three-way valve 8;

[0042] One end of the fourth pipe section 13 is connected to the second nozzle of the three-way valve 8, and the other end is connected to the nozzle of the pump body 18;

[0043] One end of the third pipe section 12 is connected to the third nozzle of the three-way valve 8, and the other end is connected to the sample tube through the second first connector 41;

[0044] The first connector 4 is located on the inlet s...

Embodiment 2

[0055] This embodiment is further refined on the basis of embodiment 1: in order to solve the cleaning problem more conveniently, it is set as follows: in step S1 and step S3, the sample tube is cut off by the pinch valve. In this example, using figure 1 The first and third pinch valves are shown.

Embodiment 3

[0057] This embodiment is further refined on the basis of embodiment 1: in order to meet the above-mentioned provision of suction force and supply of liquid medium at the same time, it is set that: the pump body 18 includes a plunger pump.

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PUM

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Abstract

The invention discloses a liquid suction method in a sample detection process. The liquid suction method is based on the following pipeline system: a sample pipe, a first pipe section, a three-way valve, a fourth pipe section, a pump and a third pipe section are included; one end of the sample pipe is connected with a sample suction needle and the other end is a sample outlet. The liquid suction method comprises the steps of S1 by utilizing the fourth pipe section, the three-way valve, the first pipe section and the sample pipe between a sample suction needle and a first joint, sucking gas into the first pipe section by the sample suction needle to form a gas column with one end positioned in the first pipe section; S2 sucking a sample solution into the sample pipe between the first joint and a second joint through the sample suction needle, and at the tail of the suction process, sucking a section of air column with the end located between the first joint and the second joint into the sample pipe; and S3 discharging the sample solution between the first joint and the second joint from the outlet of the sample pipe. By adopting the liquid suction method, the problems of ensuring accurate sample suction, high efficiency and avoiding cross contamination can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of sample detection, in particular to a method for absorbing liquid during the sample detection process. Background technique [0002] With the development of the IVD industry, feces detection has gradually shifted from manual detection to instrument automated detection. First, the feces is automatically added and mixed through the instrument, and then the sample solution is sucked by the sampling needle from the sample tube and passed through the internal pipeline of the instrument. The samples are transported to the designated location for reagent card detection and microscope inspection. After completing the detection of a sample, the instrument automatically cleans the pipeline with the flushing liquid and prepares for the next sample suction and detection. [0003] Since the pipeline of the instrument is automatically cleaned, if the flushing liquid in the pipeline is completely drained before the next...

Claims

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Application Information

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IPC IPC(8): G01N21/84G01N35/10
CPCG01N21/84G01N35/10G01N35/1004G01N2035/1048
Inventor 徐正平
Owner SICHUAN ORIENTER BIOLOGICAL TECH