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Sample injection needle with automatic detection function

An automatic detection and injection needle technology, applied in the field of medical equipment, can solve the problems of inaccurate sample volume and low sample injection efficiency

Active Publication Date: 2014-02-12
SHANDONG MAITIAN BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the traditional sample adding efficiency which is too low and the amount of sample added is inaccurate, the present invention improves the work efficiency and the accuracy of the results, and specially invents this kind of sampling needle with automatic detection function.

Method used

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  • Sample injection needle with automatic detection function

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Embodiment Construction

[0022] The present invention will be specifically described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, a sampling needle with automatic detection function includes a sample suction device for sucking samples, a pressure measuring device for detecting pressure changes inside the sampling needle, and a fall-off detection device for detecting whether the TIP head 1 is installed and falling off. The control circuit board 16 for pressure measurement and TIP head 1 shedding measurement.

[0024] The sampling device includes: a sampling needle 2, a hose 10 connected to the upper end of the sampling needle 2, the lower end of the sampling needle 2 is inserted into the TIP head 1, and the hose 10 is externally covered with a hose joint sleeve 9 and an external The micropump is connected to draw the sample.

[0025] The pressure measuring device includes: a connecting hose 7 and an air pressure sensor 14 for detect...

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Abstract

The invention discloses a sample injection needle with an automatic detection function. The sample injection needle comprises a sample suction device for sucking a sample, a pressure detection device for detecting change of inner pressure of the sample injection needle, a falling detection device for detecting whether a TIP head is mounted or falls off and a control circuit board for implementing pressure measurement and TIP head falling measurement. The sample injection needle with the automatic detection function, which is disclosed by the invention, can accurately implement detection of mounting and accident falling of the TIP head through a connection circuit part and can realize functions of liquid level detection, air bubble detection, liquid leakage detection, clot blocking detection and the like through an air pressure detection sensor.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a sampling needle with automatic detection function. Background technique [0002] With the development of medicine, automatic sample addition gradually replaces manual sample addition. At present, there have been a lot of automatic sampling equipment in the domestic and foreign markets, but only micropumps are used to extract samples according to the sample volume required for testing. And other factors, the amount of sample extraction will be inaccurate. Contents of the invention [0003] In order to overcome the disadvantages of low efficiency of sample addition and inaccurate sample volume in the traditional method, the present invention improves work efficiency and accuracy of results, and invents such a sample injection needle with automatic detection function. [0004] The present invention is achieved through the following measures: [0005] A sampling needle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10
Inventor 宋筱亮丁芬
Owner SHANDONG MAITIAN BIOLOGICAL TECH CO LTD
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