PROBLEM TO BE SOLVED: To provide a trans-body cavity cauterization device that can perform tissue cauterization precisely irrespective of a region in a body cavity.SOLUTION: A trans-body cavity cauterization device is used by an ultrasonic endoscope having an ultrasonic probe for receiving at least an ultrasonic echo for use in the internal observation at the tip of an insertion section inserted into a body of a subject. The device includes: a HIFU ultrasonic wave element capable of applying high-density energy at a focal position by oscillating an ultrasonic wave a HIFU holding member holding the HIFU ultrasonic wave element and attached at the tip of the insertion section a substantially tubular skin member with the insertion section and the HIFU holding member inserted therein and fixing means for fixing the skin member to the inside of the body of the subject.COPYRIGHT: (C)2014,JPO&INPIT【課題】体腔における部位によらず組織の焼灼を的確に行うことができる経体腔式焼灼デバイスを提供すること。【解決手段】被検体の体内に挿入される挿入部の先端に、少なくとも体内の観測に用いる超音波エコーを受信する超音波探触子を有する超音波内視鏡に用いられる経体腔式焼灼デバイスであって、超音波を発振して焦点位置で高密度のエネルギーを照射可能なHIFU超音波素子と、HIFU超音波素子を保持するとともに、挿入部の先端に取り付けられるHIFU保持部材と、挿入部およびHIFU保持部材が挿入される略管状をなす外皮部材と、外皮部材を被検体の体内に対して固定する固定手段と、を備えた。【選択図】図1
