Micro-channel structure, fluid testing device and fluid sample injection testing system

Abstract

The invention relates to the technical field of microfluidic chips, particularly to a micro-channel structure, a fluid testing device and a fluid sample injection testing system. The micro-channel structure comprises a matrix material and a flow channel. The matrix material comprises a hard base layer and a flexible base layer attached to the hard base layer, a fluid channel is arranged between the hard base layer and the flexible base layer, the flexible base layer can be extruded to be attached to the hard base layer under the action of external force relative to the direction of the hard base layer; and after the external force is removed, the flexible base layer returns to the initial state. Compared with the prior art, the micro-channel structure has the following advantages: when a test reagent enters the microfluidic chip by means of the fluid channel, the fluid channel can be cut off and conducted by directly extruding or releasing the flexible base layer, so that devices suchas an electromagnetic valve, a conversion valve and the like can be omitted, the volume of an extra flow path is greatly reduced while the system structure is simplified, and the purpose of saving a test reagent is achieved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of microfluidic chips, and in particular to a microfluidic channel structure, a fluid testing device, and a fluid sampling testing system. Background technique [0002] Microfluidic chip technology is one of the rapidly developing frontier fields of high-tech and interdisciplinary science and technology. It is an important technical platform for the research of signal detection and processing methods in life sciences, chemical sciences and information sciences. However, the inventors found that in this technology, it is usually necessary to accurately and effectively control the transportation and mixing of reactants and sample reagents in the pipeline, and the control of the flow path has become the key to this technology. At present, the control of the flow path is mostly by means of solenoid valves, pinch valves, rotary valves, etc., without exception, all of which require a certain ...

AI Technical Summary

Problems solved by technology

At present, the control of the flow path is mostly by means of solenoid valves, pinch valves, rotary valves, etc., without exception, all of which require a certain length of flow path to cooperate. It is inevitable that some precious reagents will accumulate in the flow path, resulting in waste of reagents

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