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    • 39. 发明专利
    • Electrode catheter
    • 电极导管
    • JP2013039219A
    • 2013-02-28
    • JP2011177781
    • 2011-08-15
    • Japan Lifeline Co Ltd日本ライフライン株式会社
    • MORI KENJI
    • A61B18/12A61M25/00
    • A61B18/1492A61B2018/00029A61B2018/00577A61B2018/00595A61B2018/00642A61B2018/00702A61B2018/00791A61B2018/1417A61B2018/1467A61B2218/002A61M25/0144A61M25/0147A61M2025/004
    • PROBLEM TO BE SOLVED: To provide an electrode catheter configured such that the entire surface of a tip electrode having a spherical portion of a diameter equal to or greater than the outer diameter of a catheter shaft can be irrigated with a fluid from the rear-end side.SOLUTION: The electrode catheter is provided with the catheter shaft 10 having a lumen 11 serving as a pathway for a fluid, and the tip electrode 20 which is connected to the tip side of the shaft 10 and has the spherical portion 21 of the diameter equal to or greater than the outer diameter of the shaft 10, the shaft 10 having a tip-end reduced diameter section 10A where the diameter reduces in a tapered fashion toward the tip direction, a plurality of irrigation holes 112 for irrigating the surface of the tip electrode 20 with the fluid being arranged at the tip-end reduced diameter section 10A, and a plurality of tilted lumens 111 extending in the tip direction and reaching each of the irrigation holes 112 while also tilting radially outward of the shaft 10 being formed on the interior of the tip-end reduced diameter section 10A of the shaft 10.
    • 要解决的问题:提供一种电极导管,其被构造成使得具有等于或大于导管轴的外径的直径的球形部分的末端电极的整个表面可以用来自所述导管轴的流体灌注 后端侧。 解决方案:电极导管设置有具有作为流体通路的内腔11的导管轴10,以及连接到轴10的前端侧并具有球状部21的前端电极20 直径等于或大于轴10的外径,轴10具有尖端缩径部10A,其直径朝尖端方向以锥形方式减小;多个冲洗孔112,用于冲洗表面 在前端缩径部10A配置有流体的前端电极20,以及沿着前端方向延伸并且到达各个冲洗孔112的多个倾斜腔111,同时也向轴10的径向外侧倾斜 形成在轴10的前端缩径部分10A的内部。版权所有(C)2013,JPO&INPIT