PROBLEM TO BE SOLVED: To ensure a sufficient amount of liquid supply while having a structure with a reduced diameter.SOLUTION: An ultrasonic treatment apparatus 1 includes: a long insertion part 2 an ultrasonic wave generation unit 3 provided at a tip of the insertion part 2, and for generating ultrasonic wave a treatment part 4a disposed at a tip of the ultrasonic wave generation unit 3, and for treating tissues by the ultrasonic wave a transmission part 4 connected between the ultrasonic wave generation unit 3 and the treatment part 4a, and for transmitting the ultrasonic wave generated by the ultrasonic wave generation unit 3 to the treatment part 4a and a pipe 5 extending to a base end of the insertion part 2 along the longitudinal direction of the insertion part 2, and having an opening provided at a position adjacent to the tip of the ultrasonic wave generation unit 3 and shifted from the transmission part 4, and for jetting liquid toward the treatment part 4a.COPYRIGHT: (C)2013,JPO&INPIT【課題】細径の構造としつつ液体の供給量を確保することができる。【解決手段】細長い挿入部2と、該挿入部2の先端に設けられ超音波振動を発生する超音波発生部3と、該超音波発生部3の先端側に配置され超音波により組織を処置する処置部4aと、超音波発生部3と処置部4aとの間に接続され超音波発生部3により発生された超音波振動を処置部4aに伝達する伝達部4と、超音波発生部3の先端近傍において伝達部4からずれた位置に処置部4aに向けて液体を噴射する開口を有し、挿入部2の長手方向に沿って該挿入部2の基端側に延びる配管5とを備える超音波処置装置1を提供する。【選択図】図1
