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Aspiration method during sample testing

A sample detection and sample technology, applied in measurement devices, material analysis by optical means, instruments, etc.

Active Publication Date: 2022-08-05
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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  • Aspiration method during sample testing
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Experimental program
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Effect test

Embodiment 1

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

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

[0041] One end of the first pipe section 6 is connected to the sample tube through the first joint 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 joint 41;

[0044] The first joint 4 is located on the inlet side of t...

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 a pinch valve. In this embodiment, 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 satisfy the above-mentioned requirements of providing suction force and replenishing liquid medium, it is set that the pump body 18 includes a plunger pump.

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Abstract

One end has a suction needle, and the other end is the sample exit; the method of suction solution includes the following steps: S1, using the fourth tube segment, three -way valve, the first tube section, and the sample tube between the sample pins and the first joint, and the first connector and the first joint.Pick up the gas from the sample needle to the first tube, forming the air column located in the first tube; S2, the sample solution between the sample tube between the sample needle to the first connector and the second joint, and in the sample solution, and inAt the end of the extraction process, the sample tube is inhaled into the air column between the end of the first connector and the second connector; S3, the sample solution between the first joint and the second joint is discharged by the exit of the sample tube.The use of this solution method can effectively solve the problem of accurate sample suction, high efficiency, and avoiding cross -pollution mentioned above.

Description

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

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84G01N35/10
CPCG01N21/84G01N35/10G01N35/1004G01N2035/1048
Inventor 徐正平
Owner SICHUAN ORIENTER BIOLOGICAL TECH