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Microfluid mixing device

A mixing device and microfluidic technology, used in mixers, shaking/oscillating/vibrating mixers, transportation and packaging, etc., can solve the problems of long mixing channels and mixing time, and achieve the effect of simple structure and high mixing efficiency

Inactive Publication Date: 2009-10-28
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the ultrasonic microfluidic mixer can improve the effect of microfluidic mixing to a certain extent, it requires a long mixing channel and mixing time

Method used

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 and figure 2 As shown, the microfluidic mixing device 10 of the first embodiment of the present invention includes a base 11 , several pillars 12 , a first electrode 13 and a second electrode 14 .

[0014] The base 11 is in the shape of a cuboid, and it is made of a piezoelectric material, such as germanium arsenide (GaAs), lithium niobate (LiNbO 3 ), tantalum lithium acid (LiTaO 3 ) or quartz (quartz), etc.

[0015] A plurality of pillars 12 are vertically arranged in the middle of the base 11 in an array, and each pillar 12 has a groove 121 at an end away from the base 11 . The groove 121 is used to accommodate two or more microfluids to be mixed. The cylinder 12 may be in the shape of a cylinder, a triangular prism, a pentagonal prism, and the like. The cylinder 12 can be integrally formed with the base 11 , or can be fixed o...

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PUM

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Abstract

The invention provides a microfluid mixing device, which comprises a substrate, a surface wave generating unit arranged on the substrate and a plurality of cylinders distributed on the substrate, wherein the top of each cylinder is provided with a groove for accommodating microfluid. In a process of transmission on the substrate, the surface waves generated by the surface wave generating unit make the cylinders generate vibration with the transmission of a waveform to allow the microfluid accommodated in the grooves to mix quickly. Therefore, the microfluid mixing device has a simple structure and high mixing efficiency.

Description

technical field [0001] The invention relates to a liquid mixing device, in particular to a microfluid mixing device with simple structure and high mixing efficiency. Background technique [0002] In the fields of chemistry and biology, microfluidic systems are used more and more, such as the transmission of microfluids with a volume as small as several microliters, nanoliters, or even picoliters, component analysis and chemical reactions, etc. . In practical applications, it is often necessary to quickly and efficiently mix two or more trace liquids. [0003] In the microchannel, because the Reynolds number of the fluid flow (the ratio of the inertial force to the viscous force in the fluid flow) is very low, it is a laminar flow state, and the mixing process of the fluid is carried out through the free diffusion of the fluid molecules. The mixing process based on free diffusion Is extremely slow, therefore, the fluid needs a longer mixing time and a longer mixing channel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F11/00
CPCB01F11/0283B01F31/87
Inventor 周代栩
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD