ULTRASONIC ENDOSCOPE

摘要

An ultrasonic endoscope comprising piezoelectric vibrators, an acoustic matching layer built up on a major surface on the sound radiating surface side, an acoustic lens built up on the opposite side of the acoustic matching layer to the piezoelectric vibrators, a tubular ultrasonic probe built up on the other major surfaces of the piezoelectric vibrators and made of a back load material, an endoscope observing section disposed at one end of the ultrasonic probe and adapted for optical observation, and a wiring group including wirings for transmitting transmission/reception signals of the ultrasonic probe. The wiring group is so provided to extend through the inside of the ultrasonic probe and connected to the other end of the ultrasonic probe. Therefore, an ultrasonic endoscope having an ultrasonic probe free of disconnection of the ultrasonic probe from a coaxial cable even under thermal and mechanical loads can be provided.