Legal analysis: the supervision of three medical institutions is to supervise the compliance of medical institutions, medical personnel and medical behavior.

Legal basis: Article 4 Local people's governments at or above the county level shall strengthen their leadership over the supervision and management of medical devices within their respective administrative areas, organize and coordinate the supervision and management of medical devices and emergency disposal within their respective administrative areas, strengthen the capacity building of medical device supervision and management, and provide guarantee for the safety of medical devices.