Clamp device for fixing microfluidic chip with electrode

Abstract

The invention discloses a clamp device for fixing a microfluidic chip with an electrode. Specifically, a clamp comprises a pedestal, a placement groove, a clamping plate, a buckle, and pedestal pins;the placement groove is disposed in the pedestal, is corresponding to the clamping plate, and is used for bearing the microfluidic chip; the pedestal pins are arranged corresponding to electrodes of electrode bonding pads of the microfluidic chip and are connected with contact pins; the buckle is arranged on a side edge of the clamp and used for keeping the clamping plate and the pedestal in a closed state. The clamping plate is movably connected with the pedestal, and when the clamping plate and the pedestal are in a closed state, the microfluidic chip abuts against the placement groove. A circuit board comprises sockets, external circuits and fixing parts, and the sockets are arranged corresponding to the contact pins. The microfluidic chip is stably fixed, the circuits are stably connected, the fixing process is simple and convenient, and the recoverability is high.

Description

technical field [0001] The invention relates to the field of microfluidic chips, in particular to a fixture device for fixing a microfluidic chip with electrodes. Background technique [0002] Microfluidic technology is a science and technology that can precisely control fluids on a micron-scale chip and complete the entire analysis process. It has great potential in the fields of biology, chemistry, medicine, electronics, materials, and machinery. [0003] Electrical detection technology is an electrical sensing method for detecting and analyzing biological and chemical samples on a microfluidic chip. This detection technology integrates metal electrodes on the microfluidic chip through micromachining, and can exert pressure on the microfluidic chip. Excitation signals for detection of biological and chemical samples and sending response signals to external circuits. [0004] In the application field of electrical detection of microfluidic chips, the fixing scheme of micro...

AI Technical Summary

Problems solved by technology

However, the structure of the spring probe and screw fixing scheme is relatively simple, but the process of fixing is more cumbersome; the scheme of using wire welding is not stable enough in the experimental operation, and the microfluidic chip is prone to deviation during the long-term detection process. The electrode of the microfluidic chip is mostly made of gold or platinum, the contact effect between the solder and the electrode is poor, and it is easy to fall off. The microfluidic chip is difficult to replace after welding, and the recyclability of the fixing device is poor.

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