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    • 15. 发明授权
    • Tip structure for variable direction of view endoscope
    • 可视方向内窥镜的尖端结构
    • US07374533B2
    • 2008-05-20
    • US11054068
    • 2005-02-09
    • Hans David HoegNathan Jon ScharaEric Lawrence Hale
    • Hans David HoegNathan Jon ScharaEric Lawrence Hale
    • A61B1/00
    • A61B1/00183
    • A variable direction of view endoscope generally comprising an endoscope shaft, an objective optical system disposed in the distal end of the shaft that defines a view vector movable relative to the longitudinal axis of the shaft, and a viewing window located in the distal end of the shaft through which the view vector scans over a range of different view vector directions when moved relative to the longitudinal axis of the shaft. A portion of the distal section of the endoscope shaft adjacent and proximal to the viewing window has a cross-section perpendicular to the longitudinal axis of the shaft, and at least two regions within the cross section are connectable by a straight line that does not lie within or on the boundary of the cross section. In certain embodiments, cross section comprises at least two disjoint closed sets of points.
    • 通常包括内窥镜轴的可变方向内窥镜,设置在所述轴的远端中的物镜光学系统,其限定可相对于所述轴的纵向轴线移动的视图矢量,以及位于所述远端的观察窗口 轴,当相对于轴的纵向轴线移动时,视图矢量在该轴上扫描不同视图矢量方向的范围。 靠近观察窗的内窥镜轴的远侧部分的一部分具有垂直于轴的纵向轴线的横截面,并且横截面内的至少两个区域可通过不在其上的直线连接 在横截面内或边界上。 在某些实施例中,横截面包括至少两个不相交闭合的点集合。