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    • 4. 发明授权
    • Endoscope
    • 内窥镜
    • US06923758B2
    • 2005-08-02
    • US10295778
    • 2002-11-15
    • Kota Ishibiki
    • Kota Ishibiki
    • G02B23/24A61B1/00A61B1/05
    • A61B1/00096A61B1/05
    • An illuminational optical system and an observational optical system mounted to lens frames are arranged at the tip part of an insertion portion. The observational optical system has resistance to high-temperature steam sterilization, and is sealed steam-tight in order to avoid entering of steam into the inside. On the other hand, the illuminational optical system is sealed liquid-tight with an adhesive, and even when steam enters into the inside, the entered steam can be discharged by the heat accompanying illumination light during an endoscope inspection. Consequently, cost reduction can be achieved and repairability, etc., can be ensured with almost no degradation in observation performance.
    • 安装到透镜框架的照明光学系统和观察光学系统布置在插入部分的尖端处。 观察光学系统具有耐高温蒸汽灭菌的功能,并且密封为蒸汽密封,以避免蒸汽进入内部。 另一方面,照明光学系统用粘合剂液密地密封,并且即使当蒸汽进入内部时,在内窥镜检查期间,所输入的蒸汽可以通过伴随照明的热量排出。 因此,可以实现成本降低,并且可以确保观察性能几乎不降低的可修复性等。