Pacing, sensing or defibrillator leads for implantation into the myocardium
    21.
    发明授权
    Pacing, sensing or defibrillator leads for implantation into the myocardium 有权
    起搏,感应或除颤器引线用于植入心肌

    公开(公告)号:US09072890B2

    公开(公告)日:2015-07-07

    申请号:US13393521

    申请日:2010-09-02

    IPC分类号: A61N1/05

    CPC分类号: A61N1/0565 A61N1/0573

    摘要: An electrical lead for a cardiac device includes a body having a distal end sized for insertion through a catheter, first and second electrodes extending through the body, with each electrode terminating in a tip having proximal and distal ends and arranged to extend to an area of cardiac tissue. The tips include a fully insulated portion on the proximal and distal ends measuring in a range between 5 percent and 40 percent of the lengths of the tips, and further include an uninsulated intermediate section. The tip of the second electrode includes a helical section surrounding the first electrode and has an insulated portion on an inwardly facing portion surface facing toward the first electrode. The tip of the second electrode also includes a fully insulated portion on the proximal and distal ends measuring in the same or similar percentage range.

    摘要翻译: 用于心脏装置的电引线包括具有尺寸设置成用于插入穿过导管的远端的主体,延伸穿过主体的第一和第二电极,每个电极终止于具有近端和远端的尖端中,并且布置成延伸到 心脏组织。 尖端包括在近端和远端的完全绝缘部分,其测量范围在尖端的长度的5%至40%之间的范围内,并且还包括未绝缘的中间部分。 第二电极的尖端包括围绕第一电极的螺旋部分,并且在朝向第一电极的朝内部分表面上具有绝缘部分。 第二电极的尖端还包括在相同或相似百分比范围内测量的近端和远端的完全绝缘部分。