PROBLEM TO BE SOLVED: To provide an apparatus for inactivating renal nerve conduction by focused ultrasound for hypertension treatment.SOLUTION: The apparatus comprises: an ultrasound transducer 30 to be inserted into a renal artery of a mammalian subject for transmitting unfocused ultrasound energy； and an actuator 20 electrically connected to the ultrasound transducer, the actuator adapted to control the ultrasound transducer to transmit unfocused ultrasound energy into an impact volume 11 of at least 0.5 cmencompassing the renal artery such that the unfocused ultrasound energy is applied at a therapeutic level sufficient to inactivate conduction of renal nerves throughout the impact volume.SELECTED DRAWING: Figure 8【課題】高血圧治療のため、集束超音波により、腎神経伝達を不活性化する装置を提供する。【解決手段】哺乳類対象の腎動脈へ挿入されて非集束超音波エネルギーを伝達する超音波振動子３０と、超音波振動子に電気的に接続され、前記腎動脈を包含する少なくとも０．５ｃｍ3の衝撃容積内１１に、衝撃容積全体の腎神経伝達を不活性化するのに十分な治療レベルで印加される非集束超音波エネルギーを伝達するように、超音波振動子を制御する、アクチュエータ２０と、を含む。【選択図】図８
