Intracardiac therapeutic and diagnostic ultrasound device

An ultrasound system, comprising:

• a flexible elongate member configured to be positioned within vasculature of a patient adjacent to an occlusion, the flexible elongate member comprising a proximal portion and a distal portion;
• an ultrasound transducer array positioned at the distal portion of the flexible elongate member, wherein the ultrasound transducer array includes a plurality of independently-controlled transducer elements arranged in a first segment and a second segment, wherein the first segment is configured to emit a first ultrasound signal within a first frequency range between 10 MHz and 70 MHz and to receive ultrasound echoes reflected from the vasculature and associated with the first ultrasound signal within the first frequency range for diagnostic use, imaging of at least the occlusion, wherein the second segment is configured to emit a second ultrasound signal within a second frequency range between 20 kHz and 3 MHz for therapeutic use, including damaging a structure of the occlusion shown in the imaging;
• a beamforming controller at the distal portion of the flexible elongate member, wherein the beamforming controller is configured to independently drive each of the plurality of independently-controlled transducer elements, the beamforming controller comprising an integrated circuit (IC) configured to control an angle of transmission of at least the second ultrasound signal by the second segment for producing a pattern of fractures in the occlusion with different angles, without moving the ultrasound transducer array, for damaging the structure of the occlusion, wherein the IC includes a plurality of microchannels each configured to separately beam form signals received from the independently-controlled transducer elements in the first segment, each microchannel including a delay configured to align the signals received from the independently-controlled transducer elements, the delay comprises at least one of a charge coupled device, an analog random access memory, or a tapped analog delay line;
• and
• a plurality of signal lines coupling each of the independently-controlled transducer elements in the ultrasound transducer array to the beamforming controller.