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    • 6. 发明授权
    • Surgical handpiece tip
    • 手术机头
    • US07276060B2
    • 2007-10-02
    • US10787630
    • 2004-02-26
    • Sean C. Madden
    • Sean C. Madden
    • A61B18/18A61B18/04
    • A61F9/00736A61B17/3203A61B2018/044A61F9/00745
    • A surgical handpiece having a tip with at least two coaxially spaced electrically conductive tubes. The tubes are separated by an electrical insulator. The interior of the inner tube is used for aspiration of liquefied tissue. The outer tube is surrounded by a soft irrigation sleeve that forms an irrigation fluid path. The distal portion of the interior tube terminates inside of the outer tube so as to form a boiling region. Surgical fluid from the irrigation fluid path can enter the boiling region through a hole or port in the outer tube. Electrical current is passed between the inner and outer tube to rapidly boil any surgical fluid in the boiling region. The boiling fluid rapidly expands out of the ring between the tube ends and forces hot fluid to contact the targeted tissue, thereby liquefying the tissue and allowing the tissue to be aspirated. Such a construction allows the boiling chamber to be self-priming and operate even if the outer tube is occluded with material.
    • 具有具有至少两个同轴间隔的导电管的尖端的外科手持件。 管由电绝缘体分开。 内管的内部用于液化组织的抽吸。 外管由形成冲洗流体路径的软冲洗套管包围。 内管的远端部终止在外管的内部,形成沸腾区域。 来自冲洗流体路径的手术液可以通过外管中的孔或端口进入沸腾区域。 电流在内管和外管之间通过,以在沸腾区域内快速沸腾任何手术液。 沸腾的流体在管端部之间迅速地从环中膨胀出来并迫使热流体接触目标组织,从而液化组织并允许组织被吸出。 这种结构允许沸腾室自吸并且即使外管被材料堵塞也可操作。