PROBLEM TO BE SOLVED: To prevent increasing an outside diameter dimension of a diagnostic ultrasonic probe and to cool an ultrasonic transducer with improving insertability and operability into a trocar and a throat.SOLUTION: A therapeutic ultrasonic adapter 1 comprises: a housing 3 that is detachably attached to a diagnostic ultrasonic probe 8 which includes a diagnostic ultrasonic transducer 11 arranged at a tip of an insertion section 9 insertable into a body a therapeutic ultrasonic transducer 4 that is fixed to the housing 3 and emits a densely-focused therapeutic ultrasonic wave to a focal point P that is arranged in an imaging range of the diagnostic ultrasonic transducer 11 while the housing 3 is attached to the diagnostic ultrasonic probe 8 and a heat radiation unit 5 that is arranged in vicinity to or in contact with the therapeutic ultrasonic transducer 4, is arranged in a state of at least partially being exposed to the outside of the housing 3 and is made of a material having higher thermal conductivity than the housing 3.COPYRIGHT: (C)2015,JPO&INPIT【課題】診断用超音波プローブの外径寸法が大きくなることを防止し、トラカールや咽喉への挿入性や操作性を向上しつつ超音波振動子を冷却する。【解決手段】体内に挿入可能な挿入部9の先端に診断用超音波振動子11を備える診断用超音波プローブ8に着脱可能に取り付けられるハウジング3と、該ハウジング3に固定され、該ハウジング3が診断用超音波プローブ8に取り付けられた状態で、診断用超音波振動子11の撮像範囲内に配置される焦点Pに向けて高密度に集束させた治療用超音波を照射する治療用超音波振動子4と、該治療用超音波振動子4に近接または接触して配置されるとともに、その少なくとも一部がハウジング3の外部に露出して配置された、ハウジング3よりも熱伝導率の高い材質からなる放熱部5とを備える治療用超音波アダプタ1を提供する。【選択図】図2
