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    • 32. 发明申请
    • MULTIPOLAR, MULTI-LUMEN, VIRTUAL-ELECTRODE CATHETER WITH AT LEAST ONE SURFACE ELECTRODE AND METHOD FOR ABLATION
    • 具有多个单面表面电极的多层,多层,虚拟电极导体和方法
    • WO2007024785A3
    • 2009-04-23
    • PCT/US2006032615
    • 2006-08-21
    • ST JUDE MEDICAL ATRIAL FIBRILLPAUL SAURAVBELHE KEDAR RAVINDRA
    • PAUL SAURAVBELHE KEDAR RAVINDRA
    • A61B18/18
    • A61B18/1492A61B2018/1467A61B2018/1472A61B2218/002
    • Multipolar, multi lumen, virtual-electrode catheters (10I) and methods for treatment (e.g., treatment of cardiac arrhythmias) with such catheters (10I) are disclosed. The catheters (10I) have at least two internal lumens (14, 16), and at least one internal, flexible electrode (18) rides in each internal lumen. The flexible electrodes (18) carry treatment energy (e.g., radiofrequency energy). The energy exits the catheters (10I) via at least one exit feature (e.g., slots, portholes (26), or micro pores). The methods for treatment include operating the catheters (10I) in different modes depending upon location and type of treatment to be performed. The treatment energy delivered by one of the internal, flexible electrodes (18) may be directed to the other internal, flexible electrode (20); or the energy delivered by one or both of the internal, flexible electrodes (18, 20) may be directed to one or more surface electrodes (22).
    • 公开了使用这种导管(10I)的多极,多腔,虚拟电极导管(10I)和用于治疗(例如治疗心律失常的方法)的方法。 导管(10I)具有至少两个内部腔(14,16),并且至少一个内部柔性电极(18)骑在每个内腔中。 柔性电极(18)承载处理能量(例如,射频能量)。 能量通过至少一个出口特征(例如,狭槽,孔口(26)或微孔)离开导管(10I)。 治疗方法包括根据要进行的治疗的位置和类型以不同的模式操作导管(10I)。 由内部柔性电极(18)之一传递的处理能量可以被引导到另一个内部柔性电极(20); 或者由一个或两个内部柔性电极(18,20)传送的能量可以被引导到一个或多个表面电极(22)。
    • 37. 发明申请
    • MULTIPOLAR, VIRTUAL-ELECTRODE CATHETER WITH AT LEAST ONE SURFACE ELECTRODE AND METHOD FOR ABLATION
    • 具有至少一个表面电极的多极,虚拟电极导管和用于消融的方法
    • WO2007016123A2
    • 2007-02-08
    • PCT/US2006/028912
    • 2006-07-26
    • ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.PAUL, SauravBELHE, Kedar Ravindra
    • PAUL, SauravBELHE, Kedar Ravindra
    • A61B18/14
    • A61B18/1492A61B2018/1472
    • Virtual-electrode catheters (10, 12) and methods for using such virtual-electrode catheters (10, 12) are disclosed. For example, bipolar (10) and multipolar (12), virtual electrode catheters having at least one internal electrode (16) and at least one surface electrode (20), and methods of using these catheters for treatment of cardiac arrhythmias are disclosed. The catheters may comprise a catheter body (14) with an internal lumen (18) extending within it and adapted to flowingly receive a conductive fluid (34). An exit feature defining a flow path from the internal lumen (18) to the catheter's outer surface may exist through a sidewall (30) of the catheter body. A conductor (16) is mounted within the internal lumen (18) adjacent to the exit feature and is adapted to deliver treatment energy to the tissue via the conductive fluid (34). At least one surface electrode (20) is mounted on the outer surface of the catheter body adjacent to the exit feature.
    • 公开了虚拟电极导管(10,12)和使用这种虚拟电极导管(10,12)的方法。 例如,公开了具有至少一个内部电极(16)和至少一个表面电极(20)的双极(10)和多极(12)虚拟电极导管,以及使用这些导管治疗心律不齐的方法。 导管可以包括导管主体(14),导管主体(14)具有在其内延伸并且适于流动地接收导电流体(34)的内腔(18)。 限定从内腔(18)到导管外表面的流动路径的出口特征可以穿过导​​管主体的侧壁(30)存在。 导体(16)安装在邻近出口部件的内腔(18)内并且适于经由导电流体(34)向组织输送治疗能量。 至少一个表面电极(20)安装在导管主体的与出口特征相邻的外表面上。