A Portable Programmable Parallel Fluid Control Flat Squeeze Microvalve Device

Abstract

The invention discloses a portable programmable parallel fluid control plate extrusion microvalve device, which belongs to the field of microfluidic chips. The present invention includes a control board integrating the operating program of multiple parallel microvalves and a plurality of valve stems with specific radians and rounded corners at both ends; a plurality of parallel grooves with specific radians and depths are processed on the surface of the control board as The valve stem slideway, the structure of the valve stem slideway is designed according to the control flow of the corresponding valve stem, and the operating state of the corresponding valve stem is controlled. The valve stem moves up and down with the movement of the control plate in the slideway and squeezes the elastic microchannel, thereby changing the opening and closing state of the channel and realizing programmable parallel fluid control. The microvalve device of the present invention can automatically complete the entire microfluidic control process in a programmable, high-synchronization, and multi-parallel state, and has reliable performance, easy function expansion and integration, and the device has good portability, low cost, and strong practicability, which is beneficial to Further construction of a real-time on-site microfluidic control system has broad application prospects.

Description

technical field [0001] The invention belongs to the field of microfluidic chips, in particular to a portable programmable parallel fluid control plate extrusion microvalve device. Background technique [0002] Microfluidics refers to the science and technology involved in systems that use micropipes (tens to hundreds of microns in size) to process or manipulate tiny fluids (nanoliters to picoliters in volume). , fluid physics, microelectronics, new materials, emerging interdisciplinary disciplines of biology and biomedical engineering. Because of the characteristics of miniaturization and integration, microfluidic systems are often called microfluidic chips, also known as Lab on a Chip. One of the important characteristics of microfluidics is that fluids have unique properties in micro-scale environments, such as laminar flow and droplets. With the help of these unique fluid phenomena, microfluidics can realize a series of fluid manipulation and control that are difficult ...

AI Technical Summary

Problems solved by technology

The current active microvalve requires more mechanical and electronic structures or external equipment such as air pressure and vacuum in multi-channel parallel control, resulting in a complex structure of the microvalve system, difficult design and processing, and high cost, which is not conducive to the chip laboratory. Miniaturization and portability, and more mechanical structures also reduce the reliability of microvalve control

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