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    MULTI-PURPOSE CATHETER APPARATUS AND METHOD OF USE
    13.
    发明申请
    MULTI-PURPOSE CATHETER APPARATUS AND METHOD OF USE 审中-公开
    多用途导管装置及其使用方法

    公开(公告)号：WO2004100813A2

    公开(公告)日：2004-11-25

    申请号：PCT/US2004/014224

    申请日：2004-05-07

    Applicant: MEDTRONIC, INC. ,  STEWART, Mark, T. ,  FIEDLER, Gary, R. ,  SANDSTONE, Jeffrey, D.

    Inventor： STEWART, Mark, T. ,  FIEDLER, Gary, R. ,  SANDSTONE, Jeffrey, D.

    IPC: A61B18/14

    CPC classification number: A61B18/1492 ,  A61B10/0233 ,  A61B2018/00011 ,  A61B2018/1407 ,  A61B2018/1435 ,  A61B2218/002

    Abstract: According to the present invention, a catheter having at least one multi-purpose lumen formed through the catheter terminates proximal a relatively complex-shaped distal portion thereof. In one form of this embodiment, the relatively complex-shaped distal portion comprises a looped portion having diagnostic- and/or ablation-type electrodes coupled thereto and an elongated diameter-adjusting member coupled proximal the distal end of the looped portion. The multi-purpose lumen may be used to alternately accommodate a variety of dedicated materials; such as, (i) a guide wire for initial deployment or later repositioning of the catheter, (ii) a volume or flow of a contrast media and the like, (iii) a deployable hollow needle or tube and the like used to biopsy adjacent tissue or dispense a therapeutic agent into a volume of tissue, and (iv) a cooling fluid, such as saline solution and the like dispensed at least during therapeutic tissue ablation procedures.

    Abstract translation: 根据本发明，具有通过导管形成的至少一个多用途腔的导管终止于其相对复杂形状的远端部分的近端。 在该实施例的一种形式中，相对复杂形状的远侧部分包括具有耦合到其上的诊断和/或消融型电极的环形部分和在环形部分的远端附近耦合的细长直径调节构件。 多用途腔可用于交替容纳各种专用材料; 例如，（i）用于初始部署或稍后重新定位导管的导丝，（ii）造影剂等的体积或流动，（iii）用于活检相邻的可展开的空心针或管等 组织或将治疗剂分配到一定体积的组织中，和（iv）至少在治疗性组织消融过程期间分配的冷却液，例如盐水溶液等。

    ABLATION DEVICE FOR CREATING AN ELONGATE LESION
    17.
    发明申请
    ABLATION DEVICE FOR CREATING AN ELONGATE LESION 审中-公开
    用于创建直升机的吸引装置

    公开(公告)号：WO2011106240A1

    公开(公告)日：2011-09-01

    申请号：PCT/US2011/025309

    申请日：2011-02-17

    Applicant: MEDTRONIC INC. ,  STEWART, Mark T. ,  FRANCISCHELLI, David E.

    Inventor： STEWART, Mark T. ,  FRANCISCHELLI, David E.

    IPC: A61B18/14

    CPC classification number: A61N7/02 ,  A61B8/485 ,  A61B8/5223 ,  A61B2017/00106 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61N2007/0065 ,  A61N2007/0095 ,  A61N2007/027

    Abstract: Device, system and method for evaluating the effectiveness of tissue ablations of a heart of a patient. The tissue is clamped between a pair of opposing jaws. A portion of the tissue is ablated at a first generally linear position on the tissue by applying ablative energy to two of a plurality of elongate electrodes, each of the two of the plurality of elongate electrodes being coupled in opposing relationship to each other and the pair of opposing jaws, respectively. An effectiveness of the ablation is sensed at a second generally linear position on the tissue with at least one of the plurality of elongate electrodes positioned on one of the pair of opposing jaws. The second linear position on the tissue is laterally distal to the first linear position on the tissue with respect to the atrium of the heart.

    Abstract translation: 用于评估患者心脏组织消融有效性的装置，系统和方法。 将组织夹在一对相对的夹爪之间。 通过向多个细长电极中的两个施加烧蚀能量，组织的一部分在组织上的第一大致线性位置被消融，多个细长电极中的每一个彼此相对地相互耦合，并且该对 的对颚分别。 在组织上的第二大致直线位置处感测消融的有效性，其中多个细长电极中的至少一个位于一对相对的夹爪中的一个上。 组织上的第二线性位置相对于心脏的心房横向远离组织上的第一线性位置。

    MONO-PHASIC ACTION POTENTIAL ELECTROGRAM RECORDING CATHETER
    20.
    发明申请
    MONO-PHASIC ACTION POTENTIAL ELECTROGRAM RECORDING CATHETER 审中-公开
    单相动作电位电极记录管

    公开(公告)号：WO2011014602A1

    公开(公告)日：2011-02-03

    申请号：PCT/US2010/043623

    申请日：2010-07-29

    Applicant: MEDTRONIC ABLATION FRONTIERS LLC ,  LAU, Michael ,  WERNETH, Randell ,  CORVI, Timothy, J. ,  BHOLA, Sumita ,  STEWART, Mark, T. ,  HAÏSSAGUERRE, Michel

    Inventor： LAU, Michael ,  WERNETH, Randell ,  CORVI, Timothy, J. ,  BHOLA, Sumita ,  STEWART, Mark, T. ,  HAÏSSAGUERRE, Michel

    IPC: A61N1/05 ,  A61B5/042 ,  A61B18/12 ,  A61B18/14

    CPC classification number: A61N1/056 ,  A61B5/0422 ,  A61B5/6852 ,  A61B5/6856 ,  A61B18/12 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00267 ,  A61B2018/0066 ,  A61B2018/00839 ,  A61B2018/00898 ,  A61B2562/0215

    Abstract: Catheters and methods for obtaining monophasic action potential ("MAP") electrograms include a flexible catheter body defining a longitudinal axis, and a distal assembly affixed to the catheter body distal end defining a distal tip. The distal assembly has at least three MAP recording electrodes, and at least one reference electrode for determining reference potential. The recording electrodes are each positioned a radial distance from the longitudinal axis in at least three different radial directions, defining a recording geometry substantially having radial symmetry. The reference electrode is a longitudinal distance from the recording geometry. Optional features include a steerable catheter shaft, one or more radio-frequency ablation electrodes, and a dedicated pacing electrode. Different possible embodiments include a dome housing having the recording electrodes in a fixed spatial arrangement, and a distal loop assembly having an array of electrodes on at least three flexible loop elements.

    Abstract translation: 用于获得单相动作电位（“MAP”）电描记图的导管和方法包括限定纵向轴线的柔性导管主体，以及固定到导管主体远端的远端组件，其限定远端尖端。 远端组件具有至少三个MAP记录电极和用于确定参考电位的至少一个参考电极。 记录电极各自在至少三个不同的径向方向上与纵向轴线径向距离，限定基本上具有径向对称性的记录几何形状。 参考电极是与记录几何形状的纵向距离。 可选功能包括可导向的导管轴，一个或多个射频消融电极和专用起搏电极。 不同的可能实施例包括具有固定空间布置的记录电极的圆顶壳体和在至少三个柔性环形元件上具有电极阵列的远端环组件。

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