PROBLEM TO BE SOLVED: To obtain a constant curative effect even when thermal energy removing amounts due to the blood stream differ or change.SOLUTION: An ultrasonic energy treatment device 100 comprises: an insertion part 1 which has a slender shape capable of being inserted into a blood vessel a piezoelectric element 11 which is attached to the insertion part 1 and emits ultrasonic energy from the inside of the blood vessel to a biological tissue outside the blood vessel a temperature measurement sensor 13 a temperature detection part 25 which detects the temperature of the temperature measurement sensor 13 and a control part 33 which controls the piezoelectric element 11 in accordance with the temperature of the temperature measurement sensor 13 measured by the temperature detection part 25 so that a desired amount of ultrasonic energy is emitted to the biological tissue.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】血流による熱エネルギの持ち去り量が相違したり変化したりする場合でも、一定の治療効果を得る。【解決手段】血管内に挿入可能な細長い形状を有する挿入部1と、挿入部1に取り付けられ、血管内から血管外の生体組織に超音波エネルギを射出する圧電素子11と、測温センサ13と、測温センサ13の温度を検出する温度検出部25と、生体組織に対して所望量の超音波エネルギが照射されるように、温度検出部25により測定された測温センサ13の温度に応じて圧電素子11を制御する制御部33とを備える超音波エネルギ治療装置100を提供する。【選択図】図1
