Controller, medical devices and medical device system,

PROBLEM TO BE SOLVED: To provide users trying to connect a medical device to a control device, with user support information including correspondence/non-correspondence determination between the devices.SOLUTION: The control device according to one aspect of the present disclosure, includes: a connector joint part to which a connector part provided at a cable extending from a medical device, is connected; a communication part that executes radiocommunication with the connector part by proximity wireless communication; and a notification part that notifies the user of user support information based on information of the medical device having received by the communication part. This disclosure is applicable to, for example, endoscopic surgery systems.SELECTED DRAWING: Figure 2