validated during this time the assistant 18 is already undertaking an examination and or treatment of a patient a by means of the medical device 12 as soon as the patient a is finished the patient b can enter a medical device room 34 in which the medical device 12 is located and the examination and or treatment of the patient b can begin without delay the assistant 18 receives the patient data p established by the assistant 24 via the control console 14 and has the patient data displayed on the terminal 16 they can now set the medical device 12 in accordance with the patient data p and or as per requirements which are displayed by the patient data there can also be provision for the medical device 12 to be set by the control console on the basis of the patient data p without the involvement of the assistant 18 the assistant 24 has entered the patient data p into the input interface 22 from where the patient data has been transmitted by the communication link 30 to the coordination device 20 which has transmitted the patient data p at the beginning of the examination and or treatment of the patient b to the control console 14 which patient the assistant 24 must question can also be displayed to the assistant 24 via the input interface 22 to this end fig2 illustrates how via the input interface 22 of the assistant 24 a list 36 of the patients a b c d to be expected for a specific period of time for example during one day and further patients symbolized by omission points can be shown for example the assistant 24 is shown by symbols 38 that the patient a is currently located for examination.