Miniature ultrasound high efficiency transducer assembly, guidewire using the same and method

摘要

Guidewire comprising a flexible elongate member having a distal extremity with an ultrasonic transducer secured to the distal extremity of the flexible elongate member. The transducer has a diameter ranging from 0.007 inches to 0.018 inches and has a thickness and a diameter to provide a transducer having an aspect ratio with a thickness which is one-half of the diameter +/-5%. Electrical leads are connected to the transducer and extend the length of the flexible elongate member.