An ultrasonic treatment apparatus of the invention is provided with an improved cleaning ability and easy recyclability. A grasping member (1720) includes a first element (1721) molded of a heat resistant resin, and a second element (1722) located inside the first element (1721) as a reinforcement in such a manner that the first element (1721) covers the outer surface of the second element (1722) entirely. <；IMAGE>；
