Patent ID: 8382673

Claim:
An ultrasonic endoscope including an insertion part, and an operation part provided at the base end of the insertion part, said insertion part comprising: an elongated tube having flexibility for insertion into a body of object; an ultrasonic transducer part including: plural ultrasonic transducers; a backing material on a surface of which said plural ultrasonic transducers are arranged; at least one wiring board provided on at least one side face of said backing material and having plural electrode pads electrically connected to said plural ultrasonic transducers; and signal lines connected to said plural electrode pads, for transmitting signals to said plural ultrasonic transducers, respectively; an exterior member for accommodating said ultrasonic transducer part and having an outer surface to be contacted with the body; and a heat conducting part provided inside of said exterior member and respectively connected to said ultrasonic transducer part and an inner surface of said exterior member, wherein said heat conducting part is directly connected to a back face of said backing material, and said heat conducting part transfers a heat generated in said plural ultrasonic transducers via said backing material to said exterior member.