Micro reagent liquid level detection method and device for immunohistochemical staining machine

Abstract

The invention relates to a method of trace reagent liquid level detection for an immunohistochemical staining machine. The method of the trace reagent liquid level detection for the immunohistochemical staining machine comprises the following steps: enabling the needle head of a sampling needle to be electrically insulated with surrounding structures, enabling a baseboard to be electrically insulated with an engine base to be laid between a reagent bottle and the engine base with the fact that the baseboard and the needle head of the sampling needle are conductors, judging whether capacitance between the needle head of the sampling needle and the baseboard is effectively stepped, and if the answer is yes, determining whether the sampling needle contacts with the liquid level. The invention further relates to a device of the trace reagent liquid level detection which comprises a capacitor and a detection circuit. Two poles of the capacitor are formed by the needle head of the sampling needle and the baseboard, the needle head of the sampling needle is a conductor, and the needle head of the sampling needle is electrically insulated with the surrounding structures. The baseboard is laid between a reagent bottle and an engine base, and the baseboard is a conductor and is electrically insulated with the engine base. The detection circuit comprises a capacitance converter and a microprocessor. The method and the device of the trace reagent liquid level detection are capable of detecting remaining amount of trace reagents in the reagent bottle, and are high in detection accuracy, simple in structure, and low in cost.

Description

Technical field [0001] The invention relates to a reagent liquid level detection device, in particular to a method and device for detecting a micro-reagent liquid level for an immunohistochemical staining machine. Background technique [0002] Immunohistochemical staining technique is an important staining method in pathological techniques, which has been widely used in pathological work and is one of the important auxiliary methods for pathologists to make diagnosis of diseases. Immunohistochemical staining is a pathological technique developed in recent years. The operation itself is easily affected by humidity, temperature, time, and human factors, resulting in unstable results, inability to compare results well, and difficulty in quality control. Higher requirements are placed on pathology technicians. [0003] In China, due to the high price of imported instruments, more than 99% of hospitals currently operate manually. The main problems with traditional manual operations are...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: in order to overcome the deficiency in the prior art that the detection accuracy of the trace reagent in the reagent bottle is not high, and even when the amount is small, it cannot be detected. Micro reagent liquid level detection method and device

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