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    Bidirectional steerable catheter with deflectable distal tip
    37.
    发明授权
    Bidirectional steerable catheter with deflectable distal tip 失效
    具有可偏转远端的双向导向导管

    公开(公告)号：US5906590A

    公开(公告)日：1999-05-25

    申请号：US873483

    申请日：1997-06-12

    申请人： Kulbir Singh Hunjan ,  Josef V. Koblish ,  Thomas P. Coen

    发明人： Kulbir Singh Hunjan ,  Josef V. Koblish ,  Thomas P. Coen

    IPC分类号： A61M25/01 ,  A61M25/092 ,  A61M37/00

    CPC分类号： A61M25/0147 ,  A61M25/0136

    摘要： A bidirectional catheter with a deflectable tip at a distal end includes a handle at a proximal end and a tubular member extending between the tip and the handle. The handle includes a first piston member slidably mounted in a handle base with proximal ends of steering wires secured in the handle. The steering wires extend through the tubular member with respective distal ends thereof secured to circumferentially spaced portions of the distal end tip. Axial displacement of the piston member in a second direction conversely urges deflection of the distal end tip in a second direction by tensioning the other wire relative to the first wire. The piston member can include another piston member slidable in the first piston member with the proximal ends of the steering wires secured in the first mentioned piston member and the handle member, respectively, and with the other piston member supporting a proximal end of the tubular member.

    摘要翻译： 在远端具有可偏转尖端的双向导管包括在近端处的手柄和在尖端和手柄之间延伸的管状构件。 手柄包括可滑动地安装在手柄底座中的第一活塞构件，其中固定在手柄中的操纵线的近端。 操纵线延伸穿过管状构件，其相应的远端固定到远端尖端的周向间隔开的部分。 活塞构件在第二方向上的轴向位移相反地通过相对于第一线张紧另一条线来促使远端尖端在第二方向上的偏转。 活塞构件可以包括可在第一活塞构件中滑动的另一活塞构件，其中操纵线的近端分别固定在第一提及的活塞构件和手柄构件中，并且另一个活塞构件支撑管状构件的近端 。