Circulating cooling interventional ultrasonic ablation system

The invention discloses a circulating cooling interventional ultrasonic ablation system. The system comprises an inner tube; the ultrasonic transducer is arranged outside the inner tube in a sleeving manner; the balloon assembly is arranged outside the ultrasonic transducer in a sleeving mode, and a first refrigerant circularly flows in the balloon assembly so as to cool the outer surface of the ultrasonic transducer; and a circulating second refrigerant circulates in the ultrasonic transducer and is used for cooling the core position of the ultrasonic transducer. The ultrasonic transducer can be effectively cooled, so that the risk that the outer surface of the ultrasonic transducer is overheated to cause harm to human tissues can be reduced, and meanwhile, the situation that an intervention guide wire matched with the ultrasonic transducer for use cannot be drawn out or moved due to unstable work caused by overheating of a core part of the ultrasonic transducer and blood coagulation entering the ultrasonic