Class I: through routine management is sufficient to ensure its safety, effectiveness of medical devices. Such as most of the surgical instruments, stethoscopes, surgical caps, masks, medical X-ray film, wound post and so on.
Class II: its safety, effectiveness of medical devices should be controlled. Such as thermometers, sphygmomanometers, cardiac diagnostic equipment, medical cotton wool, medical gauze, constant temperature incubators.
Category III: potentially dangerous to the human body, its safety, effectiveness must be strictly controlled medical devices. Such as: implantable cardiac pacemaker, artificial crystal, single-use sterile syringe or infusion tube.
By the above definition, we can see that the first aid kit belongs to a class of medical devices, because it is not directly applied to the human body, so there is no particularly high management requirements.