What is the difference between Class I and Class II medical devices ah?

Class I and Class II, you only need to look at the first letter of the medical device registration certificate number, 1 for Class I, 2 for Class II. \x0d\\ The difference between Class I and Class II: \x0d\ Article 5 of the state of the medical device to implement classification management. \x0d\ Class I refers to, through routine management is sufficient to ensure the safety and effectiveness of medical devices. \x0d\ Class II refers to medical devices whose safety and effectiveness should be controlled. \x0d\ Class III refers to, implanted in the human body; used to support, maintain life; potentially dangerous to the human body, its safety and effectiveness must be strictly controlled medical devices.