Patent ID: 9592072
Date: 2017-03-14
CPC Classifications: A61B

Claim:
1. An ultrasonic treatment apparatus comprising: a probe main body portion of an ultrasonic probe extending along a longitudinal axis, the probe main body portion being configured to transmit an ultrasonic vibration from a proximal side toward a distal side; a treatment section provided in a distal portion of the probe main body portion; an insulation layer extending on an outer surface of the probe main body portion from the treatment section toward the proximal side; a first electrode provided on an outer surface of the insulation layer, at least an end portion of the first electrode in the treatment section being exposed to an outside, the first electrode having conductivity for conveying a high-frequency electric power; a second electrode having at least an end portion of the second electrode in the treatment section exposed to the outside, the second electrode being configured to function as an electrode different from the first electrode, the second electrode being electrically insulated from the first electrode by the insulation layer, and the second electrode being configured to vibrate integrally with the probe main body portion, the insulation layer, and the first electrode when the probe main body portion transmits the ultrasonic vibration; a first insulation coating extending from the treatment section toward the proximal side, the first insulation coating terminating prior to the end portion of the first electrode, the first insulation coating being made of an electrically insulating material, the first insulation coating covering the first electrode other than an exposed part to the outside in the treatment section; a first electric line having one end connected to the first electrode, the high-frequency electric power being supplied to the first electrode portion via the first electric line; and an ultrasonic transducer configured to generate the ultrasonic vibration and to transmit the generated ultrasonic vibration to the probe main body portion so that the probe main body portion vibrates at a predetermined resonance frequency.