Abstract: An ultrasonic catheter is disclosed. The ultrasonic catheter comprises a body having a longitudinal axis and a distal end. A Piezoelectric Micromachined Ultrasonic Transducer (pMUT) array is disposed within the distal end of the body. Further, the pMUT array comprises a plurality of pMUT array elements arranged on a substrate. Further, an insulating material is disposed at the distal end over an imaging window, to provide electrical isolation and transmission of ultrasound signals. The insulating material corresponds to a polyether block amide (PEBA) or Pebax, or thermoplastic elastomer (TPE).

Abstract: An ultrasonic catheter is disclosed. The ultrasonic catheter comprises a body having a longitudinal axis and a distal end. A Piezoelectric Micromachined Ultrasonic Transducer (pMUT) array is disposed within the distal end of the body. Further, the pMUT array comprises a plurality of pMUT array elements arranged on a substrate. Further, an insulating material is disposed at the distal end over an imaging window, to provide electrical isolation and transmission of ultrasound signals. The insulating material corresponds to a polyether block amide (PEBA) or Pebax, or thermoplastic elastomer (TPE).

Abstract: An ultrasonic imaging system is disclosed. The ultrasonic imaging system comprises an ultrasonic catheter having a longitudinal axis, a proximal end, and a distal end. The ultrasonic imaging system includes an ultrasonic transducer array disposed within the distal end of the ultrasonic catheter. The ultrasonic transducer array comprises a plurality of transducer array elements arranged on a substrate. Further, a catheter shaft is connected at one end to a handle assembly and at other end to the ultrasonic transducer array. The catheter shaft houses an electronic flex cable which is in communication with at least one signal trace, and is configured to direct each of the plurality of transducer array elements to transmit and receive ultrasound beams, receive at least one signal from the plurality of transducer array elements, and construct at least one image of at least a portion of the heart based on the at least one signal.