利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.013 秒)

    Diagnostic system
    1.
    发明公开
    Diagnostic system 失效
    Diagnostik，原基

    公开(公告)号：EP0766093A1

    公开(公告)日：1997-04-02

    申请号：EP96118785.3

    申请日：1993-06-24

    申请人： Olympus Optical Co., Ltd.

    发明人： Fujio, Koji ,  Gotanda, Masakazu ,  Yamaguchi, Tatsuya ,  Takayama, Shuichi ,  Tsukaya, Takashi ,  Hagiwara, Toshihiko ,  Matsui, Koichi ,  Hibino, Hiroki ,  Hiyama, Keiichi ,  Shimizu, Koichi ,  Yoshino, Kenji ,  Hayashi, Masaaki

    IPC分类号： G01R33/28 ,  G01R33/36

    CPC分类号： G01R33/34084 ,  A61B5/055 ,  G01R33/285 ,  G01R33/288 ,  G01R33/3657

    摘要： In a diagnostic system making use of a nuclear magnetic resonance phenomenon comprising a control section (31), a flexible inserting section (32) of thin diameter extending from said control section and being adapted to be inserted into a body cavity, an endoscope (21) provided in said insertion section and having a high frequency antenna (56), a magnetic resonance signal measuring circuitry (22) for processing a nuclear magnetic resonance signal from said high frequency antenna, and a matching means (57) for coupling said high frequency antenna (56) to said magnetic resonance signal measuring circuitry (22), a suitable adjustment of the matching between the magnetic resonance measuring device and the endoscope, for improving the practical use of the system, is achieved in that said matching means (57) comprises plurality of variable impedance elements (66, 67) and said control section (31) comprises an impedance adjusting means (60) for adjusting the variable impedance elements (66, 67) so as to attain a suitable impedance matching state between said high frequency antenna (56) and said magnetic resonance signal measuring circuitry (22).

    摘要翻译： 在利用核磁共振现象的诊断系统中，包括控制部分（31），从所述控制部分延伸并适于插入体腔的细径的柔性插入部分（32），内窥镜（21） ），具有高频天线（56），用于处理来自所述高频天线的核磁共振信号的磁共振信号测量电路（22），以及用于将所述高频天线 天线（56）到所述磁共振信号测量电路（22），为了改善系统的实际使用，对磁共振测量装置和内窥镜之间的匹配的适当调整是实现的，其中所述匹配装置（57） 包括多个可变阻抗元件（66,67），并且所述控制部分（31）包括阻抗调节装置（60），用于调节可变阻抗元件（66,6 以便在所述高频天线（56）和所述磁共振信号测量电路（22）之间获得合适的阻抗匹配状态。