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    • 1. 发明授权
    • Endoscope coupler with magnetic focus control
    • 具有磁焦控制的内窥镜耦合器
    • US5359992A
    • 1994-11-01
    • US963356
    • 1992-10-20
    • Koichiro HoriDennis Arsenault
    • Koichiro HoriDennis Arsenault
    • A61B1/00A61B1/04
    • A61B1/00188A61B1/00126A61B1/00128A61B1/042Y10S359/903Y10S403/01
    • An endoscope coupler includes a sealed chamber and a lens assembly longitudinally movable within the chamber for focusing an image to be received by a video camera. Spaced permanent drive magnets located exteriorly of the chamber are magnetically coupled with respective permanent driven magnets secured to the lens assembly in the chamber for moving the lens assembly simultaneously with movement of the drive magnets. A focusing ring is rotatable but not longitudinally movable about the chamber and translates the drive magnets and, therefore, the driven magnets and lens assembly longitudinally in response to focusing ring rotation. Frictional retaining rings disposed between the chamber and the focusing ring resist movement of the focusing ring to provide enhanced tactile response when the focusing ring is manually moved by an operator.
    • 内窥镜耦合器包括密封室和在室内纵向运动的透镜组件,用于聚焦由摄像机接收的图像。 位于室外部的间隔永磁驱动磁体与固定在腔室中的透镜组件的相应的永久驱动磁体磁耦合,用于随着驱动磁体的移动而同时移动透镜组件。 聚焦环可旋转但不能围绕室纵向移动,并且响应于聚焦环的旋转而使驱动磁体和因此驱动的磁体和透镜组件纵向平移。 设置在室和聚焦环之间的摩擦保持环抵抗聚焦环的移动,以在聚焦环由操作者手动移动时提供增强的触觉响应。