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    CATHETER
    1.
    发明公开
    CATHETER 失效
    导管

    公开(公告)号：EP0420993A1

    公开(公告)日：1991-04-10

    申请号：EP90906332.3

    申请日：1990-04-11

    申请人： Mitsubishi Cable Industries, Ltd. ,  MITSUBISHI JUKOGYO KABUSHIKI KAISHA

    发明人： UTSUMI, Atsushi Itami Plant - Mitsubishi Cable ,  MORITA, Yukio Itami Plant - Mitsubishi Cable ,  KAIDE, Tamotsu Mitsubishi Cable Industries, ,  ONISHI, Kazuo Mitsubishi Cable Industries, ,  HAYASHI, Shunichi

    IPC分类号： A61M25/00

    CPC分类号： A61M25/0054

    摘要： A catheter provided with a torque transmission portion having rigidity sufficient enough to transmit a torque and a flexible portion made of a material having a glass transition point that provides rigidity before insertion but flexibility after insertion. The torque transmission portion can transmit torque before, during and after the insertion. The flexible portion has suitable rigidity before and during the insertion and can be inserted easily but, after being inserted, its flexibility is increased by a body temperature and hardly damages the inner wall of an inserted tube. Furthermore, the torque transmission portion may have a reinforcing structure formed by winding or knitting linear metallic wires (particularly, flat rectangular lines) in a coil form in order to transmit torque. The catheter having various functions and structures can be produced easily by injecting molding or the like.

    摘要翻译： 本发明提供一种导管，该导管设置有具有足以传递扭矩的足够刚性的扭矩传递部分和由具有玻璃化转变点的材料制成的挠性部分，该材料在插入之前提供刚性，而在插入之后提供挠性。 转矩传递部分可以在插入之前，期间和之后传递转矩。 柔性部分在插入之前和插入期间具有合适的刚度并且可以容易地插入，但是在插入之后，其柔韧性由于体温而增加并且几乎不会损坏插入管的内壁。 此外，为了传递扭矩，扭矩传递部可以具有通过将线状金属线（特别是扁平的矩形线）卷绕或编织成线圈状而形成的加强结构。 具有各种功能和结构的导管可以通过注射成型等容易地制造。