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    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM
    3.
    发明申请
    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM 审中-公开
    带有保持机构的TRANS-SEPTAL CATHETER

    公开(公告)号：WO02094363A3

    公开(公告)日：2003-02-06

    申请号：PCT/US0216142

    申请日：2002-05-21

    Applicant: MEDTRONIC INC

    Inventor： STEWART MARK T ,  FRANCISCHELLI DAVID E ,  SKARDA JAMES R

    IPC: A61B17/00 ,  A61F2/958 ,  A61M25/10

    CPC classification number: A61B17/00234 ,  A61B2017/00252 ,  A61M25/10

    Abstract: A trans-septal guide catheter for providing access through the septum separating a first heart chamber from a second heart chamber that includes an elongated guide catheter body extending between guide catheter proximal and distal ends. A distal segment of the guide catheter is adapted to be inserted through the septum to locate the distal segment of the guide catheter within one of the first heart chamber and the second heart chamber. The catheter body encloses a guide catheter lumen adapted to provide access into the one of the first heart chamber and the second heart chamber through a guide catheter lumen proximal end opening and a guide catheter lumen distal end opening. A retention mechanism engages the septum and maintains the distal segment of the guide catheter extending into the one of the first heart chamber and the second heart chamber.

    Abstract translation: 一种反间隔导引导管，用于提供通过将第一心室与第二心室隔开的隔膜的通路，该第二心室包括在引导导管近端和远端之间延伸的细长引导导管主体。 引导导管的远侧部分适于插入穿过隔膜以将引导导管的远侧部分定位在第一心室和第二心室之一内。 导管主体包围引导导管内腔，其适于通过引导导管内腔近端开口和引导导管内腔远端开口提供通向第一心室和第二心室之一的通路。 保持机构接合隔膜并且保持引导导管的远端段延伸到第一心室和第二心室中的一个。

    LOOP ABLATION APPARATUS AND METHOD
    5.
    发明申请
    LOOP ABLATION APPARATUS AND METHOD 审中-公开
    循环装置和方法

    公开(公告)号：WO2005120375A2

    公开(公告)日：2005-12-22

    申请号：PCT/US2005019127

    申请日：2005-06-01

    Applicant: MEDTRONIC INC ,  CHRISTIAN STEVEN C ,  FRANCISCHELLI DAVID E ,  PODBELISKI ADAM A ,  HAEG DANIEL C ,  DAIGLE TOM P ,  STEINBRINK MARIE T ,  BRISCOE RODERICK E

    Inventor： CHRISTIAN STEVEN C ,  FRANCISCHELLI DAVID E ,  PODBELISKI ADAM A ,  HAEG DANIEL C ,  DAIGLE TOM P ,  STEINBRINK MARIE T ,  BRISCOE RODERICK E

    IPC: A61B18/14

    CPC classification number: A61B18/1492 ,  A61B2018/00291 ,  A61B2018/00363 ,  A61B2018/00375 ,  A61B2018/00577 ,  A61B2018/1407 ,  A61B2018/1472

    Abstract: Embodiments of the invention provide an ablation apparatus for ablating target tissue adjacent pulmonary veins of a patient. The ablation apparatus can include a tube capable of being advanced around the pulmonary veins to form a loop. The tube can receive or include electrodes to ablate target tissue. Some embodiments provide a loop ablation device, which may include a cannula and two or more electrode rods carrying two or more bipolar electrodes. The electrode rods can be advanced through the distal ends toward the proximal ends of the loop and toward the target tissue. The bipolar electrodes can receive energy to ablate the target tissue. The bipolar electrodes may be surrounded by the liquid within the cannula while ablating the target tissue. The loop ablation device can further include a rotating grasping mechanism coupled to the electrode rods.

    Abstract translation: 本发明的实施例提供了一种用于消融患者的肺静脉附近的靶组织的消融装置。 消融装置可以包括能够围绕肺静脉前进以形成环的管。 管可以接收或包括用于烧蚀靶组织的电极。 一些实施例提供一种环路消融装置，其可以包括套管和两个或更多个承载两个或更多个双极电极的电极棒。 电极棒可以通过远端朝向环的近端并朝向目标组织前进。 双极电极可以接收能量以消融靶组织。 当消融靶组织时，双极电极可被插管内的液体包围。 环切除装置还可包括与电极棒连接的旋转夹持机构。

    ABLATION CATHETER ASSEMBLY AND METHOD FOR ISOLATING A PULMONARY VEIN
    6.
    发明申请
    ABLATION CATHETER ASSEMBLY AND METHOD FOR ISOLATING A PULMONARY VEIN 审中-公开
    吸入管组件和用于分离肺动脉的方法

    公开(公告)号：WO0245608A9

    公开(公告)日：2003-12-18

    申请号：PCT/US0144977

    申请日：2001-11-30

    Applicant: MEDTRONIC INC

    Inventor： STEWART MARK T ,  SKARDA JAMES R ,  FLICKINGER WILLIAM J ,  FRANCISCHELLI DAVID E

    IPC: A61B17/00 ,  A61B18/14

    CPC classification number: A61B18/1492 ,  A61B2017/00044 ,  A61B2017/00243 ,  A61B2017/00867 ,  A61B2018/00214 ,  A61B2018/00267 ,  A61B2018/00351 ,  A61B2018/00375 ,  A61B2018/1407 ,  A61B2018/1435

    Abstract: A catheter assembly and method for treatment of cardiac arrhythmia. In one preferred embodiment, the catheter assembly includes a cetheter body, at least one electrode, and a fluid source. The catheter body includes a proximal portion, an intermediate portion, a distal portion, a first lumen, and an ablation section. The intermediate portion extends from the proximal portion and defines a longitudinal axis. The distal portion extends from the intermediate portion and forms a helix or coil. The first lumen extends from the proximal portion to the distal portion. Finally, the ablation section is formed along the helix of the distal portion and defines a loop transverse to the longitudinal axis. The ablation section is, in one preferred embodiment, comprised of a microporous material in fluid communication with the first lumen so as to irrigate fluid from the first lumen to an exterior surface of the ablation section. The electrode is associated with the ablation section. Finally, the fluid source is provided to supply a conductive fluid to the first lumen. With the configuration, upon activation, the electrode supplies an ablation energy to fluid irrigated to the exterior surface of the ablation section, thereby ablating a continuous, closed lesion pattern. During use, for example, the catheter assembly can ablate a closed lesion pattern corresponding with the loop defined by the ablation section on a chamber wall about a pulmonary vein ostium to electrically isolate the pulmonary vein from the left atrium. In one preferred embodiment, the ablation section is comprised of a high density, expanded PTFE material. In another preferred embodiment, a shaping wire is slidably disposed within the catheter body to selectively dictate the desired helical shape of the distal portion.

    Abstract translation: 一种用于治疗心律失常的导管组件和方法。 在一个优选实施例中，导管组件包括绦虫体，至少一个电极和流体源。 导管主体包括近端部分，中间部分，远端部分，第一内腔和消融部分。 中间部分从近侧部分延伸并且限定纵向轴线。 远侧部分从中间部分延伸并形成螺旋或线圈。 第一管腔从近端部分延伸到远端部分。 最后，消融部分沿着远侧部分的螺旋形成，并且限定了一个横向于纵轴的环。 在一个优选实施例中，消融部分包括与第一内腔流体连通的微孔材料，以便将流体从第一内腔冲洗到消融部分的外表面。 电极与消融部分相关联。 最后，提供流体源以向第一管腔提供导电流体。 利用该配置，在激活时，电极将消融能量提供给冲洗到消融部分的外表面的流体，从而消除连续的闭合病变图案。 在使用期间，例如，导管组件可以消除对应于围绕肺静脉口的腔室壁上的消融部分限定的环的封闭病变图案，以将肺静脉与左心房电隔离。 在一个优选实施例中，消融部分由高密度，膨胀的PTFE材料组成。 在另一优选实施例中，成形线可滑动地设置在导管主体内，以选择性地决定远侧部分的期望的螺旋形状。

    TISSUE LESION EVALUATION
    8.
    发明申请
    TISSUE LESION EVALUATION 审中-公开
    组织评估

    公开(公告)号：WO2009140359A2

    公开(公告)日：2009-11-19

    申请号：PCT/US2009043751

    申请日：2009-05-13

    Applicant: MEDTRONIC INC ,  STEWART MARK T ,  FRANCISCHELLI DAVID E ,  HONG JINBACK

    Inventor： STEWART MARK T ,  FRANCISCHELLI DAVID E ,  HONG JINBACK

    IPC: A61B18/14

    CPC classification number: A61B18/1445 ,  A61B2018/00029 ,  A61B2018/00065 ,  A61B2018/00113 ,  A61B2018/0016 ,  A61B2018/00357 ,  A61B2018/00363 ,  A61B2018/00577 ,  A61B2018/00839 ,  A61B2018/1472 ,  A61B2090/064 ,  A61B2218/002

    Abstract: Device, system and method for ablating tissue 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: 用于消除患者心脏的组织的装置，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。

    Loop ablation apparatus and method
    9.
    发明申请
    Loop ablation apparatus and method 审中-公开
    环路消融装置及方法

    公开(公告)号：WO2005120375A9

    公开(公告)日：2006-06-29

    申请号：PCT/US2005019127

    申请日：2005-06-01

    Applicant: MEDTRONIC INC

    Inventor： CHRISTIAN STEVEN C ,  FRANCISCHELLI DAVID E ,  PODBELISKI ADAM A ,  HAEG DANIEL C ,  DAIGLE TOM P ,  STEINBRINK MARIE T ,  BRISCOE RODERICK E

    IPC: A61B18/14

    CPC classification number: A61B18/1492 ,  A61B2018/00291 ,  A61B2018/00363 ,  A61B2018/00375 ,  A61B2018/00577 ,  A61B2018/1407 ,  A61B2018/1472

    Abstract: Embodiments of the invention provide an ablation apparatus for ablating target tissue adjacent pulmonary veins of a patient. The ablation apparatus can include a tube capable of being advanced around the pulmonary veins to form a loop. The tube can receive or include electrodes to ablate target tissue. Some embodiments provide a loop ablation device, which may include a cannula and two or more electrode rods carrying two or more bipolar electrodes. The electrode rods can be advanced through the distal ends toward the proximal ends of the loop and toward the target tissue. The bipolar electrodes can receive energy to ablate the target tissue. The bipolar electrodes may be surrounded by the liquid within the cannula while ablating the target tissue. The loop ablation device can further include a rotating grasping mechanism coupled to the electrode rods.

    Abstract translation: 本发明的实施例提供了一种用于消融患者的肺静脉附近的靶组织的消融装置。 消融装置可以包括能够围绕肺静脉前进以形成环的管。 管可以接收或包括用于烧蚀靶组织的电极。 一些实施例提供一种环路消融装置，其可以包括套管和两个或更多个承载两个或更多个双极电极的电极棒。 电极棒可以通过远端朝向环的近端并朝向目标组织前进。 双极电极可以接收能量以消融靶组织。 当消融靶组织时，双极电极可被插管内的液体包围。 环切除装置还可包括与电极棒连接的旋转夹持机构。

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