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Pressing block for adding liquid into sample, liquid adding assembly and liquid adding needle cleaning method

A technology for adding liquid needles and samples, which is applied in cleaning methods and utensils, chemical instruments and methods, cleaning hollow objects, etc., and can solve the problems of large space occupation, complex analyzer structure design, unfavorable instrument simplification and miniaturization, etc.

Pending Publication Date: 2021-04-30
SICHUAN ORIENTER BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the prior art proposed above, in order to solve the cleaning problem of the sample needle or the liquid filling needle, there are technical problems such as the complex design of the entire structure of the analyzer, large space occupation, and unfavorable simplification and miniaturization of the instrument. The invention provides a briquetting block for adding liquid to a sample, a liquid adding assembly, and a cleaning method for a liquid adding needle

Method used

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  • Pressing block for adding liquid into sample, liquid adding assembly and liquid adding needle cleaning method
  • Pressing block for adding liquid into sample, liquid adding assembly and liquid adding needle cleaning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1 to Figure 2 As shown, the briquetting block used for adding liquid to the sample includes a block-shaped briquetting body 10, and the briquetting body 10 is provided with a through hole 16 passing through a pair of opposite ends thereof, and the through hole 16 includes a The liquid needle 13 passes through the straight section of the briquetting body 10; the through hole 16 includes a first hole section 19 at one end and a second hole section 20 at the other end, the first hole section 19 and the second hole section The hole segments 20 are connected, and the cross-sectional area of ​​the first hole segment 19 is greater than the cross-sectional area of ​​the second hole segment 20; when the outlet of the liquid-feeding needle 13 is located in the first hole segment 19, the first hole segment The space of the hole section 19 can be used to form an accommodating tank 18 for accommodating the cleaning liquid at the outlet side of the liquid supply needl...

Embodiment 2

[0040] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 2 As shown, as a person skilled in the art, the above accommodating tank 18 can not only form a cleaning environment for the surface of the liquid filling needle 13, but also can accommodate the corresponding cleaning liquid through a larger cross-sectional area than the straight hole, reducing the first hole section 19 is the pressure of the cleaning liquid at the position where the second hole section 20 meets, but in actual use, since the surface of the liquid feeding needle 13 needs to be cleaned using the above cleaning environment, the final liquid condition in the storage tank 18 is that there is a section The liquid column, in order to ensure the capacity of the accommodation tank 18 and reduce the static pressure generated by the liquid column at the position where the second hole segment 20 meets the first hole segment 19, is set as: the first The hole section 19 als...

Embodiment 3

[0043] The present embodiment is further limited on the basis of embodiment 1, as Figure 1 to Figure 2 As shown, in order to facilitate processing, it is set that: the first hole section 19, the second hole section 20, and the sinkhole section 21 are all straight hole sections.

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Abstract

The invention discloses a pressing block for sample liquid adding, a liquid adding assembly and a liquid adding needle cleaning method, the pressing block comprises a pressing block body, and a through hole penetrating through a pair of opposite ends of the pressing block body is formed in the pressing block body; the through hole comprises a first hole section and a second hole section, the first hole section is connected with the second hole section, and the sectional area of the first hole section is larger than that of the second hole section; when the outlet of the liquid adding needle is located in the first hole section, the space of the first hole section can form a containing groove used for containing cleaning liquid in the outlet side of the liquid adding needle. The pressing block further comprises a pipe connector connected with the pressing block body, and the inlet end of the pipe connector is connected with the bottom of the containing groove. The pressing block is applied to the liquid adding assembly, the liquid adding needle cleaning method is based on the pressing block, by adopting the technical scheme provided by the scheme, liquid adding needle cleaning can be conveniently completed in the liquid adding stroke of the liquid adding needle, and corresponding instrument structure simplification and size miniaturization design can be conveniently achieved.

Description

technical field [0001] The invention relates to the technical field of sample liquid addition equipment, in particular to a briquetting block for sample liquid addition, a liquid addition component and a method for cleaning a liquid addition needle. Background technique [0002] In medical instruments, it is often necessary to add liquid to the sample to be tested. After the liquid addition is completed, it is necessary to move the liquid addition needle to the designated position and clean the inner and outer walls of the needle to avoid the next Cross-contamination occurs when samples are dispensed. To complete the above actions, the processing method in the prior art is, for example, the technical solution provided by the Chinese patent with the application number CN201922131146.0, which provides a method including The technical solution of the sensor, liquid adder and cleaning pool used for liquid pressure detection; the technical solution provided by the Chinese patent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10B08B9/035
CPCB08B9/035G01N35/1004
Inventor 徐正平
Owner SICHUAN ORIENTER BIOLOGICAL TECH
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