Patent ID: 7837699

Claim:
An ultrasonic treatment apparatus comprising: a sheath that includes an opening at a distal end thereof, and is configured to be inserted into a body from the distal end; a rigid member that is in a substantially cylindrical shape and attached to the distal end of the sheath; an ultrasonic transducer that is provided in a distal end of the rigid member, and generates ultrasonic vibration; an ultrasonic transmission member that includes a treatment part protruding from the rigid member, and transmits the ultrasonic vibration generated by the ultrasonic transducer to the treatment part; a gripper that is rotatably attached to the rigid member, and grasps a part to be treated with the treatment part; a wire that is inserted in the sheath, a first end of the wire being connected to the gripper; and a manipulator part that is connected to a second end of the wire to manipulate the gripper to an open position and a closed position with respect to the treatment part, wherein the rigid member includes an ultrasonic transducer holder having a truncated circular cross-section to hold the ultrasonic transducer therein, and a connecting part of the gripper and the wire is located in a space adjacent of the ultrasonic transducer holder.