Catheter device and method for using catheter device

The invention provides a catheter device (100) and a using method thereof. The catheter device (100) comprises a control host (200), a catheter body (10) and a reinforcing balloon (20), and the catheter body (10) sequentially comprises a base part (11), a loading part (12) and a head end (13); the reinforcing balloon (20) is arranged on the periphery of the loading part (12) in a sleeving mode and located between the base part (11) and the head end (13), and the two ends of the reinforcing balloon (20) are connected with the base part (11) and the head end (13) in a sealed mode respectively; the loading part (12) is provided with a first ultrasonic unit (15) and a second ultrasonic unit (14), and the control host (200) is connected with the first ultrasonic unit (15) and the second ultrasonic unit (14); the diameter of the loading part (12) is smaller than that of the base part (11) of the catheter main body (10); the first ultrasonic unit (15) and the second ultrasonic unit (14) are spaced by a first distanc