Patent ID: 8795307
Filing Date: 2014-08-05
Classification: A61B,A61N

Abstract:
1. An ultrasonic treatment device comprising: a handle unit including a cylindrical case which is extended along a longitudinal axis, a fixed handle which is extended from the cylindrical case toward a handle extending direction that is a direction crossing the longitudinal axis, a movable handle which is pivotably attached to the cylindrical case, and which is openable and closable with respect to the fixed handle, and an internal space being formed inside the handle unit, the internal space opening with respect to an outside of the handle unit at an opening; a vibrator unit which includes a vibrator case coupled to a proximal direction side of the cylindrical case, and an ultrasonic vibrator provided at an inside of the vibrator case and configured to generate ultrasonic vibration; a probe which extends from the internal space of the handle unit toward a distal direction, and which is configured to transmit the ultrasonic vibration generated by the ultrasonic vibrator from a proximal end to a distal end of the probe, a hole-shaped portion being formed at an inside of the probe, the hole-shaped portion being opened with respect to an outside of the probe at a first opening position and a second opening position, the first opening position being placed at the distal end of the probe, the second opening position being placed at an outer peripheral portion of the probe and located inside the cylindrical case in the internal space of the handle unit, the second opening position being placed at a node position of the ultrasonic vibration, and the first opening position and the second opening position communicating with each other via the hole-shaped portion; a jaw which is configured to open or close with respect to the distal end portion of the probe by opening or closing the movable handle with respect to the fixed handle; and a path which is extended in the hole-shaped portion from the first opening position to the second opening position along the longitudinal axis, and which is extended to the outside of the probe from the second opening position at an inside of the cylindrical case in the internal space of the handle unit, the path being extended from the second opening position to the opening of the handle unit through only the internal space of the handle unit, and the path being extended to the outside of the handle unit from the opening of the handle unit.