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    • 9. 发明申请
    • ULTRASONIC SURGICAL INSTRUMENTS
    • 超声外科器械
    • WO2009018075A1
    • 2009-02-05
    • PCT/US2008/070983
    • 2008-07-24
    • ETHICON ENDO-SURGERY, INCSTULEN, Foster B.
    • STULEN, Foster B.
    • A61B17/32
    • A61B17/320068A61B17/320092A61B17/3203A61B2017/320072A61B2017/320088A61B2217/005A61B2217/007
    • A surgical instrument includes a transducer configured to produce vibrations at a predetermined frequency. The transducer is configured to produce vibrations along a longitudinal axis at a predetermined frequency. An ultrasonic blade extends along the longitudinal axis and is coupled to the transducer. The ultrasonic blade includes a body having a proximal end and a distal end. The distal end is movable relative to the longitudinal axis by the vibrations produced by the transducer. The body includes a treatment region that extends from the proximal end to the distal end. The body includes a tapered concave surface which extends inwardly into the body defining a variety of shapes including a conical shape, a frusto-conical shape, or a partial spheroid. The body includes surface coatings to prevent the formation of a thin layer of fluid on the body which may be atomized thus creating a mist.
    • 外科器械包括构造成以预定频率产生振动的换能器。 换能器被配置成以预定的频率沿着纵轴产生振动。 超声刀片沿着纵向轴线延伸并耦合到换能器。 超声刀片包括具有近端和远端的主体。 远端可以通过换能器产生的振动相对于纵向轴线移动。 主体包括从近端延伸到远端的处理区域。 主体包括锥形凹面,其向内延伸到主体中,该凹面限定了包括锥形,截头圆锥形或部分球体的各种形状。 身体包括表面涂层,以防止在体上形成薄层的流体,这可能被雾化从而产生雾气。