Patent ID: 8663223

Claim:
A surgical treatment apparatus configured to be held and operated by a surgeon, the surgical treatment apparatus comprising: a vibration generator configured to generate ultrasonic vibration; a vibration transmission section configured to axially transmit the ultrasonic vibration generated in the vibration generator from a proximal end portion to a distal end portion; a treatment section which is formed at the distal end portion of the vibration transmission section, and which is configured to ultrasonically vibrate in an ultrasonic treatment and configured to function as a first electrode in a high-frequency treatment; a grip member which is provided to be openable or closable relative to the treatment section, and which is configured to be closed relative to the treatment section to grip living tissue; an electrode section which is provided in the grip member, and which is configured to function as a second electrode in the high-frequency treatment; a receptacle which is provided in the grip member and made of an insulating material, and which is configured to abut onto the treatment section so that a clearance is formed between the electrode section and the treatment section when the grip member is closed relative to the treatment section, the receptacle being configured to be worn away by the ultrasonic vibration of the treatment section when the grip member is closed relative to the treatment section; and a regulating section which is provided in the grip member and insulated from the electrode section, and which is made of a material harder than the receptacle, a closing-direction side end of the regulating section, not protruding from the receptacle toward a closing direction, the regulating section being to be exposed from the receptacle in the closing direction when the receptacle is worn away more than a predetermined amount, and the regulating section being configured to contact the treatment section before the electrode section to regulate contact between the electrode section and the treatment section, when the grip member is closed relative to the treatment section, in a state that the regulating section is exposed from the receptacle.