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Integrated type sample feeding system for micro-fluidic chip

A technology of microfluidic chip and sampling system, which is applied in the direction of analyzing materials and instruments, can solve the problems of high price, high cost, and difficulty in popularization and use, and achieve the effect of reducing costs

Inactive Publication Date: 2013-12-18
SUZHOU SASENS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, configuring multiple sets of precision syringe pumps is more expensive than this test system, and the cost of building a microfluidic chip system with various basic functions is high, making it difficult to popularize and use

Method used

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  • Integrated type sample feeding system for micro-fluidic chip
  • Integrated type sample feeding system for micro-fluidic chip

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Embodiment Construction

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0018] refer to figure 1 As shown, a microfluidic chip integrated sampling system, including a syringe pump 3), the syringe pump 3 is connected to the third on-off valve 12 and the fourth on-off valve 13 through the pipeline, the third on-off valve The valves 12 are respectively connected to the first on-off valve 10 and the second on-off valve 11 through the pipeline, the second on-off valve 11 is connected to the pure water pool 2 through the pipeline, and the first on-off valve 10 is respectively connected to the sampling needle 18 and the sample area 1 to be tested, the syringe pump 3 drives the sample chamber 5 sample and the buffer solution 6, the sample chamber 5 is connected to the detection sensor 7 through the fifth on-off valve 14, and the buffer solution 6 passes through the sixth on-off valve 15 is connected to the dete...

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Abstract

The invention discloses an integrated type sample feeding system for a micro-fluidic chip. According to the integrated type sample feeding system, only one injection pump is adopted to sequentially realize a series of functions of quantitative liquid transferring of a sample on a sample feeding chip, driving of the sample and buffering liquid in the chip, reaction control, washing of a sample sampling probe and the like through on-off control of a plurality of groups of three-way valves. According to the integrated type sample feeding system, the stable sample feeding performance of the injection pump is utilized sufficiently so that the cost of the system is reduced on the basis of guaranteeing the precision requirements of the sample feeding system; the integrated type sample feeding system has an important practical value on the development of relevant analysis chip systems and equipment.

Description

technical field [0001] The invention relates to the technical field of microfluidic chips, in particular to a microfluidic chip integrated sampling system. Background technique [0002] At present, microfluidic chips have higher and higher requirements for sample analysis accuracy and automation. Compared with peristaltic pumps, syringe pumps have higher sampling accuracy and can achieve high-precision, stable and pulsation-free liquid transmission, so they are widely used in In the sampling system of the microfluidic chip. A complete microfluidic chip sampling system needs to realize multiple functions, including quantitative pipetting of samples, driving and reaction control of samples and buffers in the chip, and cleaning of sample sampling needles. [0003] Traditional sampling is mostly through manual pipettes to introduce samples and buffers. The pipettes use disposable needles without separate cleaning. This method has a low degree of automation and is difficult to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10
Inventor 李传宇周连群黎海文
Owner SUZHOU SASENS CO LTD
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