Patent ID: 9076955
Filing Date: 2015-07-07
Classification: A61B,A61N,B06B,G10K,H01L

Abstract:
1. A curved high intensity focused ultrasound (HIFU) transducer comprising: a curved piezoelectric array having opposite concave front and convex back surfaces, the front surface comprising an acoustic transmitting surface; a plurality of electrodes located on the convex back surface for applying electrical transmit signals to the array; a printed circuit board spaced apart from and in opposition to the back surface of the curved piezoelectric array which couples electrical signals to the electrodes of the array, wherein a space between the printed circuit board and the curved piezoelectric array comprises an acoustic air backing passageway of the piezoelectric array for air-cooling the curved piezoelectric array and the printed circuit board, and a backing plate mounted behind and in spaced relation to the printed circuit board which defines a second passageway between the printed circuit board and the backing plate, wherein an inlet port is coupled to the first or second passageway and an outlet port is coupled to the other passageway.