A rotationally vibrating imaging catheter and method of utilization has an array of ultrasound or optical transducers and an actuator along with signal processing, display, and power subsystems. The actuator of the preferred embodiment is a solid-state nitinol actuator. The actuator causes the array...http://www.google.com.tw/patents/US8057395?utm_source=gb-gplus-share專利 US8057395 - Resolution optical and ultrasound devices for imaging and treatment of body lumens
