Injection pump for micro-fluidic chip

Abstract

The application discloses an c for a micro-fluidic chip. The injection pump comprises a shell. An assembling groove is concavely formed in the top end of the shell. A motor base, a sliding block, a cylinder seat and a screw motor are arranged in the assembling groove. The screw motor comprises a motor and a screw. A nut matched with the screw is fixed on the sliding block. The sliding block is moved between the motor base and the cylinder seat under the action of the screw. The injection pump is driven by the screw motor to operate, so that the injection precision can be improved.

Description

technical field [0001] The present application relates to the field of microfluidic technology, in particular to a syringe pump for a microfluidic chip. Background technique [0002] Microfluidic chip (microfluidic chip) has become an important platform for microanalysis research in the fields of biology and chemistry in recent years because of its advantages of low consumption, rapidity, and integration of various analysis functions. Since microfluidic chip analysis is carried out in a micron-scale separation and analysis channel with network characteristics on a chip of a few square centimeters, the sample preparation and injection involved in biochemical experiments can be realized through the rapid manipulation of nanoliter or even picoliter sample scale. , mixing, reaction, separation, detection and other operations of an invention analysis technology. [0003] The drive of the fluid in the channel of the microfluidic chip is generally realized by a syringe pump. The s...

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Problems solved by technology

[0003] The drive of the fluid in the channel of the microfluidic chip is generally realized by a syringe pump. The syringe pump in the prior art has the problems of poor control accuracy, many parts, complex structure, and long assembly time.

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