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    • 7. 发明申请
    • Electrosurgical instrument
    • 电外科器械
    • US20080132889A1
    • 2008-06-05
    • US11633351
    • 2006-12-04
    • Mai WakamatsuTomoyuki Takashino
    • Mai WakamatsuTomoyuki Takashino
    • A61B18/14A61N7/00
    • A61B17/00491A61B18/1482A61B2017/00504A61B2018/1472A61B2218/002A61B2218/003
    • An electrosurgical instrument of the present invention includes an elongated instrument body, a cylindrical member constituting the instrument body, an ultrasonic transducer provided in inside of the cylindrical member for applying ultrasonic vibration to a fluid flowing into a liquid feed passage, a fluid atomizing port provided at the distal side of the instrument body for injecting the liquid which was given the ultrasonic vibration by the ultrasonic transducer and atomized to a living tissue from the distal end of the instrument body, and an electrode provided at the distal side of the instrument body for discharging high-frequency electric energy along the liquid injected from the fluid atomizing port so as to coagulate a surface layer of the living tissue.
    • 本发明的电外科器械包括细长器械本体,构成器械本体的圆柱形构件,设置在圆柱形构件内部的超声波换能器,用于对流入液体供给通道的流体施加超声波振动,提供流体雾化口 在仪器主体的远端侧,用于将由超声波振子进行了超声波振动的液体注入并从仪器主体的前端雾化到生物体组织,以及设置在仪器主体的远端侧的电极, 沿着从流体雾化口喷射的液体排出高频电能,使生物体组织的表层凝结。