Medical devices are categorized into three classes according to the degree of product risk.
The first category includes routine culture media, medical stains, dilutions, etc.;
The third category includes antigens and antibodies to disease-causing pathogens, nucleic acid test reagents, tumor marker test reagents, allergen test reagents, psychotropic substances, drugs, narcotic drug test reagents and other high-risk items of medical items;
The removal of the first category and the third category other than the products belong to the The second category, including enzymes, hormones, sugars and conventional drug metabolism testing items.