Automatic sampling needle cleaning device and method

A technology for automatic cleaning and sampling needles, applied in cleaning methods and utensils, chemical instruments and methods, cleaning hollow objects, etc., can solve the problems of difficult cleaning of samples and inaccurate test results of instruments, and achieve stable automatic cleaning devices and prevent The effect of inaccurate instrument test results and high efficiency

Active Publication Date: 2014-01-22
SHENZHEN CORNLEY BIO MEDICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention adopts the above technical features, and its advantage is that the device can automatically clean the inner wall, outer wall and mouthpiece of the sampling needle, effectively solve the problem that it is difficult to clean the residual samples on the sampling needle and the mouthpiece after sampling, and effectively prevent cross-contamination due to samples Problems that cause inaccurate instrument test results

Method used

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  • Automatic sampling needle cleaning device and method
  • Automatic sampling needle cleaning device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 with figure 2 As shown, the sampling needle cleaning device of the present invention includes: a sampling needle 3 and a mouthpiece 2, the mouthpiece 2 is provided with a sampling needle movement channel, and the sampling needle movement passage is sequentially provided with a first sealing node 5, The first cavity 8, the second sealing node 6, the second cavity 9, the capillary sampling tube sealing node 11 and the mouthpiece housing 1 are connected to the sealing node 12, and the first cavity 8 is provided with a The cavity 8 communicates with a liquid inlet channel 13 , and the mouthpiece housing 1 is connected with a sealing node 12 to be provided with a liquid outlet channel 10 communicated with the sampling needle movement channel.

[0032] The cleaning device also includes a moving structure 4 fixed to the sampling needle 3 for pushing the sampling needle 3 .

[0033] The movement channel of the sampling needle is set horizontally.

[0034] T...

Embodiment 2

[0037] Such as figure 1 As shown, it is the cleaning of the inner wall of the sampling needle: when the sampling needle 3 needs to be cleaned after sampling, the sampling needle 3 returns from the left to the right, the front pinhole 7 moves into the first cavity 8 and the front end of the sampling needle 3 is in the second cavity. The sealing node 6 is sealed with the mouthpiece 2. At this time, the first sealing node 5 and the second sealing node 6 at both ends of the pinhole 7 at the front end of the sampling needle 3 are sealed, the liquid enters the channel 13 and is filled with cleaning liquid, and the sampling needle 3 is extracted and cleaned. The liquid can wash the inner wall of the pipe clean.

Embodiment 3

[0039] figure 2 For the cleaning of the inner and outer walls of the sampling needle 3 and the nozzle 2: when the sampling needle 3 needs to be cleaned after sampling, the sampling needle 3 returns from the left to the right, the front pinhole 7 moves into the first cavity 8 and the sampling needle 3. The front end is also in the first cavity 8. At this time, the sampling needle 3 is only sealed by the first sealing node 5, and then the liquid inlet channel 13 is filled with cleaning liquid. The sampling needle 3 extracts the cleaning liquid to clean the inner wall. The sampling needle 3 If the cleaning liquid is not extracted and the cleaning liquid flows out from the liquid discharge channel 10, the outer wall of the sampling needle 3 and the channel of the mouthpiece 2 can be washed clean.

[0040] Example 3

[0041] 1. Fill the liquid inlet channel 13 and the liquid outlet channel 10 with cleaning liquid;

[0042] 2. The movement structure controls the sampling needle t...

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PUM

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Abstract

The invention provides an automatic sampling needle cleaning device and method. The automatic sampling needle cleaning device comprises the sampling needle and a connection mouth, wherein a sampling needle movement channel is formed in the connection mouth and is sequentially provided with a first sealing node, a first cavity, a second sealing node, a second cavity and a connection mouth outer shell sealing node; a liquid inlet channel communicated with the first cavity is formed below the first cavity; the connection mouth outer shell sealing node is provided with a liquid discharge channel communicated with the sampling needle movement channel. According to the automatic sampling needle cleaning device and method, the inner wall and outer wall of the sampling needle and the connection mouth can be cleaned completely, the problem that after sampling is conducted, residual samples on the sampling needle and the connection mouth are difficult to clean completely is solved effectively, and the problem that due to cross contamination of the samples, a test result of an instrument is not accurate can be prevented effectively.

Description

technical field [0001] The invention relates to a sampling needle cleaning method, in particular to a sampling needle, an automatic cleaning device and a method thereof. Background technique [0002] At present, the sampling needle of the manual sampling rack of the blood gas electrolyte analyzer can only automatically clean the inner wall of the needle tube. The cleaning method is to insert the cleaning liquid into the mouthpiece to clean the inner wall of the needle tube. The cleaning of the outer wall is generally performed by the operator manually cleaning the outer wall after sampling, which increases the labor cost and cannot thoroughly clean the sampling needle, which will cause pollution to the next detection and cannot be accurately detected. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an automatic cleaning device for sampling needles, comprising: a sampling needle and a mouthpiece, the mouthpie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/02
CPCB08B9/02B01L3/021B01L13/02B01L2300/0838G01N35/1004
Inventor 侯兴凯彭旭
Owner SHENZHEN CORNLEY BIO MEDICAL CO LTD
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