Endoscope
    7.
    发明授权
    Endoscope 失效
    内窥镜

    公开(公告)号:US4773395A

    公开(公告)日:1988-09-27

    申请号:US048895

    申请日:1987-05-12

    IPC分类号: A61B1/005 A61B1/00

    CPC分类号: A61B1/0056 A61B1/0057

    摘要: An endoscope according to the present invention comprises an observation optical system and an insertion section which includes a bending tube. A plurality of segments, which are rockably connected to one another, are arranged in the bending tube, and wire guides are fixed to the inner peripheral surface of each segment. One end of each of bending-control wires is fixed to the segment at the distal end portion of the bending tube. The other end of each wire extends to the proximal end portion of the insertion section, through the wire guides of the other segments. In this arrangement, the bending tube is bent by pulling the other ends of the bending-control wires. The endoscope further includes bending means arranged in the bending tube and adapted to bend, when the bending-control wire is pulled, the bending tube for moving the observation optical system such that the center of the system moves from the center of the insertion section to the periphery thereof. Thus, even though the bending tube is bent sharply, the position of a flexible tube of the insertion section, which may possibly obstruct the field of view, can be shifted to the right or left from the center of the field, thereby keeping the view field entire.

    摘要翻译: 根据本发明的内窥镜包括观察光学系统和包括弯曲管的插入部。 在弯曲管中布置有彼此可摆动地连接的多个段,并且线引导件固定到每个段的内周表面。 每个弯曲控制线的一端固定在弯曲管的远端部分的段上。 每条线的另一端通过其它段的导线引导件延伸到插入部分的近端部分。 在这种布置中,弯曲管通过拉动弯曲控制线的另一端而弯曲。 所述内窥镜还包括弯曲装置,所述弯曲装置设置在所述弯曲管中,并且适于在所述弯曲控制线被拉动时弯曲所述弯曲管,所述弯曲管用于使所述观察光学系统移动,使得所述系统的中心从所述插入部的中心移动到 其周边。 因此,即使弯曲管弯曲弯曲,插入部的柔性管的位置也可能会妨碍视野,可以从场的中心向右或向左移动,从而保持视场 场整。