FIELD: medicine.SUBSTANCE: group of inventions relates to medical equipment, namely to means for high-intensity focused ultrasound. Medical device comprises system of high-intensity focused ultrasound comprising the ultrasonic transducer with the set of elements for focusing ultrasound into the scope of exposure by ultrasound, and there is an immediate field region between the ultrasonic transducer and the scope of ultrasound exposure, and the set of transducer components is arranged with the possibility for these components to be controlled in groups, memory for storing the computer-executable orders, processor for controlling the medical device, wherein executing the commands causes the processor to receive the location data describing the set of points that are exposed to the impact of ultrasound, each of the mentioned set of ultrasound exposure points is associated with the different arrangement of the ultrasonic transducer, to determine for each of the set of ultrasound impact points, using the geometric model of the transducer component, the trajectory of ultrasound action based on different location of the ultrasonic transducer, to detect the coincidence region, using the ultrasound exposure trajectory, where the coincidence area indicates the coincidence of the ultrasound exposure trajectory for two or more points of ultrasound action in the immediate field region, to determine the commands for controlling the converter using the coincidence region, and to control the system. Machine-readable medium of the medical device contains the computer-executable commands for their execution by the processor. Method of operation of the medical device is provided by the system.EFFECT: use of inventions makes it possible to avoid overheating of the immediate field regions.15 cl, 5 dwgГруппа изобретений относится к медицинской технике, а именно к средствам для высокоинтенсивного фокусированного ультразвука. Медицинское устройство содержит систему высокоинтенсивного фокус