Patent ID: 9730710
Date: 2017-08-15
CPC Classifications: A61B,A61N

Claim:
1. An ultrasonic probe used in a joint, the ultrasonic probe being configured to transmit an ultrasonic vibration so as to treat a treated target in a joint cavity by use of the ultrasonic vibration, the ultrasonic probe comprising: a probe main body section which is extended along a longitudinal axis, and the probe main body being configured to transmit the ultrasonic vibration from a proximal side toward a distal side; a curved extending section which is provided on the distal side with respect to the probe main body section, the curved extending section being extended in a state of curving relative to the probe main body section toward a first intersecting direction side in a case where a certain direction intersecting the longitudinal axis is defined as a first intersecting direction, the curved extending section including: a first curved outer surface which faces the first intersecting direction side in the curved extending section; a second curved outer surface which faces a second intersecting direction side in the curved extending section in a case where an opposite direction of the first intersecting direction is defined as a second intersecting direction; a third curved outer surface which faces a first width direction side in the curved extending section in a case where two directions which intersect the longitudinal axis and are perpendicular to the first intersecting direction and the second intersecting direction are defined as a first width direction and a second width direction; a fourth curved outer surface which faces a second width direction side in the curved extending section; a first cutting surface which forms grooves on the second curved outer surface, the first cutting surface being configured to cut the treated target, in projection from each of the first width direction and the second width direction, the first cutting surface being formed into a circular shape in which a center is positioned on the first intersecting direction side with respect to the curved extending section; a second cutting surface which is formed on the third curved outer surface, the second cutting surface being configured to cut the treated target, the second cutting surface including first extending grooves extended along a thickness direction of the curved extending section; and a third cutting surface which is formed on the fourth curved outer surface, the third cutting surface being configured to cut the treated target, the third cutting surface including second extending grooves extended along the thickness direction of the curved extending section.