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    CONTROL METHOD FOR A PHACOEMULSIFICATION HANDPIECE
    3.
    发明授权
    CONTROL METHOD FOR A PHACOEMULSIFICATION HANDPIECE 失效
    一种PHEMOEMS化手柄的控制方法

    公开(公告)号：EP1027021B1

    公开(公告)日：2004-11-17

    申请号：EP98918104.5

    申请日：1998-04-07

    申请人： ALCON LABORATORIES, INC.

    发明人： BOUKHNY, Mikhail ,  SALEHI, Ahmad

    IPC分类号： A61F9/007 ,  B06B1/02

    CPC分类号： A61F9/00745 ,  A61B2017/00017 ,  A61B2017/00725 ,  B06B1/0253 ,  B06B2201/40

    摘要： A system and method for tuning and controlling ultrasonic handpieces by varying the frequency of the drive signal that is fed to the handpiece by a discrete dither increment. A digital signal processor may be used to measure the response of the handpiece to the varying drive signal and compare these responses to determine the probable value of the actual series resonance. The output of the digital signal processor is used to generate control parameters embodied within an appropriate control signal, which is fed to the source of the drive signal in order to alter aspects of the drive signal.

    摘要翻译： 一种通过改变以离散抖动增量馈送给手持件的驱动信号的频率来调谐和控制超声波手持件的系统和方法。 数字信号处理器可用于测量手持件对变化的驱动信号的响应并比较这些响应以确定实际串联谐振的可能值。 数字信号处理器的输出被用于生成体现在适当的控制信号内的控制参数，该控制信号被馈送到驱动信号的源以便改变驱动信号的方面。

    Liquefracture handpiece
    6.
    发明授权
    Liquefracture handpiece 有权
    液压手机

    公开(公告)号：EP1223902B1

    公开(公告)日：2004-03-10

    申请号：EP00961835.6

    申请日：2000-09-12

    申请人： ALCON LABORATORIES, INC.

    发明人： SUSSMAN, Glenn ,  PADGET, Martin, J. ,  COHEN, Donald, M.

    IPC分类号： A61F9/007 ,  A61B17/32

    CPC分类号： A61F9/00736 ,  A61B17/3203 ,  A61B2017/320084 ,  A61B2018/044 ,  A61B2018/046 ,  A61F9/00745 ,  A61F9/00763 ,  A61M1/0058

    摘要： A surgical handpiece having two coaxial tubes or channels mounted within a body. The first tube is used for aspiration and is smaller in diameter than the second tube so as to create an annular passage between the first and second tube. The annular passage communicates with a pumping chamber formed between two electrodes. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the annular passage. The distal end of the annular gap is sealed by sealing together the distal ends of the first and second tube and a plurality of orifices or ports may be formed near the seal. As the expanding gas is propelled down the annular gap, the gas/liquid stream is forced out of the distal orifices in a controlled and directed manner. The distal end of the first and second tubes may contain a bend.

    摘要翻译： 手术手机具有安装在身体内的两个同轴管或通道。 第一管用于抽吸并且直径小于第二管，以便在第一和第二管之间形成环形通道。 环形通道与形成在两个电极之间的泵送室连通。 泵腔通过煮沸少量外科手术液而起作用。 当流体沸腾时，它迅速膨胀，从而将泵送室下游的液体推出环形通道。 通过将第一和第二管的远端密封在一起来密封环形间隙的远端，并且可以在密封件附近形成多个孔或端口。 随着膨胀气体沿环形间隙向下推进，气体/液体流以受控且定向的方式被挤出远侧孔。 第一和第二管的远端可以包含弯曲。