Focus-adjustable curved surface ultrasonic transducer and ultrasonic treatment system

The invention relates to the technical field of ultrasonic treatment, in particular to a focus-adjustable curved surface ultrasonic transducer and an ultrasonic treatment system. The focus-adjustablecurved-surface ultrasonic transducer comprises a curved-surface transducer and a focal length adjusting unit arranged above the curved-surface transducer. The focal length adjusting unit comprises a focal length adjusting unit frame and a liquid container fixed in the focal length adjusting unit frame, and the liquid container is arranged above a sound beam path emitted by the curved surface transducer. According to the invention, the focal length adjusting unit is designed to adjust the focusing area of the HIFU curved surface transducer in a three-dimensional space. Compared with an existingHIFU curved surface transducer, the focal region position is adjustable, and suitable for all existing HIFU curved surface transducers. The part is independent of the HIFU curved surface transducer,the design is simple, the i