Ultrasonic endoscope

An ultrasonic endoscope comprising:

• a laminated body that comprises
• an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged, and
• a backing material layer that supports the plurality of ultrasonic transducers;
• a cable portion that comprises
• a plurality of cables each of which is electrically connected to a corresponding one of the plurality of ultrasonic transducers, and
• a shield member that covers the plurality of cables from outside and that is made of a metal;
• a first heat conductive member that is disposed on a side surface of the laminated body;
• a first insulation tube that covers the shield member of the cable portion;
• an electroconductive connection pipe that covers a part of the first insulation tube on a proximal end side of the ultrasonic endoscope;
• a second insulation tube that is connected to one end of the connection pipe on the proximal end side and that covers a part of the connection pipe and a part of the first insulation tube on the proximal end side of the ultrasonic endoscope;
• and
• a second heat conductive member that is disposed in contact with both of the first insulation tube and the connection pipe,
• wherein the first heat conductive member is extended to the shield member that is grounded to a housing and is thermally connected to the shield member.