PROBLEM TO BE SOLVED: To provide an ultrasonic endoscope capable of reducing the time for feeding/discharging water into/from a balloon.SOLUTION: The ultrasonic endoscope includes: an air supply connector 45 which can be connected to an air supply device: a balloon liquid feeding conduit 67 disposed in an insertion part 10 and communicating with the air supply connector 45 a suction connector 47 which can be connected to an aspirator and a balloon suction conduit 69 disposed in the insertion part 10 and communicating with the suction connector 47. The ultrasonic endoscope also includes: a joint part 71 where the balloon liquid feeding conduit 67 and the balloon suction conduit 69 are joined with each other at a prescribed position of the insertion part 10 a plurality of balloon liquid feeding/discharging conduits 60a and 60b communicating with the joint part 71 and disposed from the prescribed position of the insertion part 10 to a distal end hard part 29 and a plurality of liquid feeding/discharging openings 61a and 61b opened in the distal end hard part 29 and communicating with the plurality of balloon liquid feeding/discharging conduits 60a and 60b.COPYRIGHT: (C)2013,JPO&INPIT【課題】バルーン内への給排水時間を短縮することができる超音波内視鏡を提供する。【解決手段】超音波内視鏡1は、送気装置に接続可能な送気口金45と、挿入部10に配置され、送気口金45に連通しているバルーン送液管路67と、吸引器に接続可能な吸引口金47と、挿入部10に配置され、吸引口金47に連通しているバルーン吸引管路69とを有する。また、超音波内視鏡1は、挿入部10の所定の位置でバルーン送液管路67及びバルーン吸引管路69を合流される合流部71と、合流部71に連通しており、挿入部10の所定の位置から先端硬質部29にかけて配置される複数のバルーン送液排液管路60a及び60bと、先端硬質部29で開口し、複数のバルーン送液排液管路60a及び60bに連通している複数の送液排液開口部61a及び61bとを有する。【選択図】図4
