| abstract |
A catheter ( 700, 800, 1206 ) comprising: a shaft with distal ( 808, 906, 1004, 208 ) and proximal ends ( 1006 ),wherein the distal end comprises at least one array of capacitive micromachined ultrasound transducers ( 308, 402, 404, 500, 512, 600, 604, 802, 008 ) with an adjustable focus for controllably heating a target zone ( 806, 1014, 1210 ); and a connector ( 1012 ) at the proximal end for supplying the at least one array of capacitive micromachined ultrasound transducers with electrical power and for controlling the adjustable focus. |