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    • 86. 发明公开
    • Liquefracture handpiece
    • 液压手机
    • EP1314409A2
    • 2003-05-28
    • EP03003909.3
    • 2001-09-28
    • Alcon Manufacturing Ltd.
    • Sussman, GlennCohen, Donald, M.
    • A61F9/007
    • A61F9/00736A61B17/3203A61B2017/320084A61B2018/044A61B2018/046A61F9/00745A61F9/00763A61M1/0058
    • A liquefracture handpiece for injecting a heated surgical fluid to liquefy the lens tissue of an eye, comprises a body (12,112,212) having an irrigation lumen (30,34), a pumping chamber (42,142,242) mounted within the body, fluidly connected to the irrigation lumen, the pumping chamber being adapted to boil a small volume of the fluid so as to propel fluid downstream of the pumping chamber in said lumen, said pumping chamber being formed by a pair of electrodes (45,47,145,147,245,247) that allow electrical current to flow across the electrodes when a surgical fluid is contained within the pumping chamber. The pumping chamber is capable of producing a fluid pulse characterized by;

      i) a pressure pulse force of between 0.000196 Newtons (0.02 grams) and 0.196 Newtons (20 grams),
      ii) a pressure pulse rise time rate of between 0.01 Newtons/second (1 gramf/second) and 196 Newtons/second (20,000 gramf/second), and
      iii) a pressure pulse frequency of between 10 Hz and 100Hz.
    • 一种用于注射加热手术流体以液化眼睛的晶状体组织的液化手柄,包括具有冲洗腔(30,34)的主体(12,112,212),安装在主体内的泵送腔(42,142,242),流体连接到冲洗腔 所述泵送腔室适于沸腾小体积的流体,以便在所述腔体中的泵送腔室的下游推进流体,所述泵送腔室由一对允许电流流动的电极(45,47,145,147,245,247)形成 当外科手术流体容纳在泵送室内时穿过电极。 泵室能够产生流体脉冲,其特征在于: i)0.000196牛顿(0.02克)和0.196牛顿(20克)之间的压力脉冲力,ii)0.01牛顿/秒(1克/秒)和196牛顿/秒(20,000克力)之间的压力脉冲上升时间速率 /秒),和iii)10Hz和100Hz之间的压力脉冲频率。
    • 87. 发明公开
    • LIQUEFRACTURE HANDPIECE TIP
    • 液体提升手柄
    • EP1223902A1
    • 2002-07-24
    • EP00961835.6
    • 2000-09-12
    • ALCON LABORATORIES, INC.
    • SUSSMAN, GlennPADGET, Martin, J.COHEN, Donald, M.
    • A61F9/007A61B17/32
    • A61F9/00736A61B17/3203A61B2017/320084A61B2018/044A61B2018/046A61F9/00745A61F9/00763A61M1/0058
    • 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.
    • 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。
    • 88. 发明公开
    • Liquefracture handpiece tip
    • Verflüssigungshandstück
    • EP1199054A1
    • 2002-04-24
    • EP01203702.4
    • 2001-09-28
    • Alcon Manufacturing Ltd.
    • Sussman, GlennCohen, Donald M.
    • A61F9/007
    • A61F9/00736A61B17/3203A61B2017/320084A61B2018/044A61B2018/046A61F9/00745A61F9/00763A61M1/0058
    • A surgical handpiece having two coaxially mounted tubes or channels mounted to 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 gap 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 gap. The distal end of the annular gap is sealed by frictionally fitting together the distal ends of the first and second tube. One or more grooves formed in either the first or second tubes allow fluid being propelled down the annular gap to escape. A stop may be provided against which the escaping fluid impinges such as by crimping the second tube near the distal end of the second tube.
    • 具有两个同轴安装的管道或通道的手术机头,其安装到主体上。 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产生环形通道。 环形间隙与形成在两个电极之间的泵送室连通。 泵送室通过煮沸少量手术液体而起作用。 当流体沸腾时,其迅速膨胀,从而将泵送室下游的液体推出环形间隙。 通过将第一和第二管的远端摩擦配合在一起来密封环形间隙的远端。 形成在第一或第二管中的一个或多个槽允许沿环形间隙推进的流体逸出。 可以设置止挡件,例如通过在第二管的远端附近压接第二管,逃逸流体撞击该止挡件。