An ultrasonic transducer system includes an alignment guide transducer and a control device. The foregoingThe alignment guide transducer includes a transducer module and an indicator module. The transducer module is configured to emit an ultrasonic wave and receive an ultrasonic signal reflected back from a target hollow organ. The indication module is configured to indicate an alignment state of the alignment guide transducer and one of the target hollow organs. The control device is in communication with the alignment guide transducer for processing the ultrasonic signal received from the transducer module and transmitting an instruction to the indication module according to the processed ultrasonic signal to guide The user is directed to align the aforementioned ultrasonic transducer to the direction in which one of the aforementioned hollow organs extends. The processing of the ultrasonic signal comprises analyzing the ultrasonic signal to obtain a characteristic of the target hollow organ, and determining the degree of alignment of the transducer module to the target hollow organ according to the foregoing characteristic.
