What are Class A, Class B and Class C medical devices?

According to Article 4 of the Regulations on the Supervision and Administration of Medical Devices (Order No.650), medical devices in China are managed in three categories according to the degree of risk:

The first category is low-risk medical devices, which can be guaranteed to be safe and effective through routine management.

The second category is medium-risk medical devices, which need strict control and management to ensure their safety and effectiveness.

The third category is high-risk medical devices, which need to be strictly controlled and managed by special measures to ensure their safety and effectiveness.

Not a, b, C.