Ultrasonic therapy device using hifu and control method thereof

An ultrasound therapy method, comprising:

• (a) selecting and driving some conversion elements from an array type high intensity focused ultrasound (HIFU) converter having a plurality of HIFU conversion elements;
• (b) treating tissues in a focusing area by irradiating ultrasound signals to an object through the driven active conversion elements to generate heat energy;
• (c) after an elapse of a predetermined time period, selecting conversion elements for a different combination of conversion elements and driving as new active conversion elements in replacement of the active conversion elements;
• and
• (d) treating the tissues in the focusing area using the driven new active conversion elements.

An ultrasound therapy device, comprising:

• an array type high intensity focused ultrasound (HIFU) converter having a plurality of HIFU conversion elements;
• a control unit which performs control to treat tissues in a focusing area by driving the conversion elements of the array type HIFU converter and irradiating ultrasound signals to an object to generate heat energy;
• and
• a rotation unit which rotates the array type HIFU converter while maintaining a plane facing the object.