Method and device for adding precise trace amount of reagent and even coverage

Abstract

The device includes mechanisms of screwdown, power driven and spraying reagent. Motor drives rotation of transmission shaft, generating up and down motion of punch. The punch promotes injection mechanism to spray reagent. Atomized reagent is sprayed on tissue of slice or surface of object to be tested having certain area so as to form an even covered reagent film. Advantages of the invention are: (1) thin film of reagent covers surface of object to be tested, small dosage is needed; (2) changing distance between the injection mechanism and the surface of object can change size of covered area.

Description

technical field [0001] The invention relates to the electromechanical field, in particular to a method for adding and uniformly covering a precise trace reagent and a device thereof. Background technique [0002] In biological, medical and chemical experiments, it is often necessary to apply a precise and minute amount of reagent to a certain test object, and the reagent is required to evenly cover the surface of the test object. For example, it is often necessary to add some reagents to the tissue on the pathological section for reaction test. Because these reagents are very expensive, only a very small amount of reagents can often be added, and the reagents are required to evenly cover the entire tissue surface. The traditional method of using a manual dropper is to drop the reagent on the surface of the tissue first, and then use the dropper to spread the reagent evenly. And this kind of test often has a large batch, that is, dozens of tablets ...

AI Technical Summary

Problems solved by technology

The traditional method of using a manual dropper is to drop the reagent on the surface of the tissue first, and then use the dropper to spread the reagent evenly, which is not only laborious but also difficult to accurately control the amount of reagent added, resulting in waste of reagents

And this kind of test often has a large batch, that is, dozens of tablets are made at a time, and the manual method is very time-consuming, and it is difficult to adapt to the needs of modern medical treatment and medical research.

In recent years, some related automatic instruments have been manufactured abroad. The method used is: first drop the reagent on the surface of the tissue with a dropper, and then gently blow the air on the upper surface of the reagent to blow the reagent evenly; but this method is difficult to do. To completely and evenly cover the entire tissue surface with the reagent

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