One: used for body surface treatment, harmless to human body. (such as band-AIDS, etc. ), such controls are relatively loose, and generally can be operated without special permission.
Category II: Diagnostic or therapeutic instruments that are mainly used for direct contact with human body and may be harmful to human body. Need to operate with the Medical Device Business (or Production) License. (such as electronic blood glucose meter, etc. )
Category III: refers to medical devices that need to be permanently implanted into human body, or major disease diagnosis and treatment laboratory equipment that is extremely harmful to human body, needs to be listed on the basis of strict clinical trials, and needs to be operated with the Medical Device Business (or Production) License. (such as pacemakers, etc. )