Miniature biochemical analyzer

Abstract

The invention discloses a miniature biochemical analyzer. The miniature biochemical analyzer comprises a detection case body, a sample disc and a top cap. The detection case body is provided with a reaction cavity and an opening connected with the reaction cavity, the bottom wall of the detection case body is formed by overlapping a thermal insulating layer, a heating circuit board layer and a thermal conductive layer, the heating circuit board layer is located between the thermal insulating layer and the thermal conductive layer, the thermal conductive layer is provided with a disc groove which is communicated with the reaction cavity, the sample disc is arranged in the disc groove, the top cap covers the opening and is used for closing the reaction cavity, and thermal insulating panels are adopted as the top cap and the side walls of the detection case body. In this way, by means of the miniature biochemical analyzer, circling heating can be conducted on the sample disc, and the heating effect is better; in addition, due to the fact that the thermal insulating panels are adopted as the top cap and the side walls of the detection case body, and the thermal insulating layer is arranged on the outer surfaces of the detection case body, the situation that heat in the detection case body often scatters to the outside is effectively prevented, heat in the reaction cavity and the disc groove is evener, and control over the temperature in the reaction cavity and the disc groove is facilitated.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a miniature biochemical analyzer. Background technique [0002] Biochemical analyzers have high temperature requirements during biochemical detection, and the sample disk of the biochemical analyzer needs to be in a constant temperature environment. At present, the temperature control and constant temperature methods of the sample tray in the biochemical analyzer include: constant temperature in a water bath and constant temperature in an air dry bath. [0003] Water bath constant temperature refers to placing the sample tray in a constant temperature water environment, but the sample tray is prone to grow microorganisms in a humid environment for a long time, and is also prone to rust, corrosion, mold, and equipment pollution. Therefore, the sample tray needs to be drained, cleaned, and cleaned frequently. It is too troublesome to add water and so on. [0004] Air dr...

AI Technical Summary

Problems solved by technology

However, the thermal conductivity of air is poor, and it is easy to cause a temperature difference between the sample plate and the heating device through air conduction, and it is difficult to accurately reach the required temperature.

[0005] To sum up, both methods of water bath constant temperature and air dry bath constant temperature in the prior art have defects, which cannot meet the precise temperature requirements of biochemical analyzers

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