2, the second class of medical devices refers to its safety, effectiveness should be controlled medical devices. Including X-ray film machine, ultrasound, microscope, biochemistry, etc. are classified as Class II medical devices.
3, Class III medical devices are implanted in the human body, used to support, maintain life, the human body is potentially dangerous, its safety and effectiveness must be strictly controlled medical devices, such as implantable cardiac pacemakers, extracorporeal shockwave lithotripter, patient invasive monitoring system, IOLs, invasive endoscopes, ultrasound scalpels, color ultrasound imaging equipment, laser surgical equipment, high-frequency electrosurgical knife, Microwave therapeutic instrument, medical nuclear magnetic **** vibration imaging equipment, X-ray therapy equipment, more than 200mA X-ray machine, medical high-energy equipment, artificial heart-lung machine, internal fixation equipment, artificial heart valves, artificial kidneys, respiratory anesthesia equipment, one-time-use sterile syringes, one-time-use infusion sets, transfusion apparatus, CT equipment, and so on.
4, classification basis: the state of medical devices in accordance with the degree of risk to implement classification management.