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70 条记录 (耗时 0.046 秒)

    Method and system for treatment of atrial tachyarrhythmias
    41.
    发明授权
    Method and system for treatment of atrial tachyarrhythmias 失效
    治疗房性快速性心律失常的方法和系统

    公开(公告)号：US07347858B2

    公开(公告)日：2008-03-25

    申请号：US10684628

    申请日：2003-10-14

    申请人： David E. Francischelli ,  Scott E. Jahns

    发明人： David E. Francischelli ,  Scott E. Jahns

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1442 ,  A61B18/1402 ,  A61B2017/2945 ,  A61B2018/00357 ,  A61B2018/00577 ,  A61B2018/00797 ,  A61B2018/00821 ,  A61B2018/1432 ,  A61B2018/146 ,  A61B2218/002

    摘要： A method and system for ablating tissue to provide a desired set of lesions. The system includes an ablation apparatus having an elongated shapeable section carrying a mechanism such as an electrode for applying ablation energy along the shapeable section. The shapeable section includes a member of shape memory material having a memorized configuration. The shapeable section is shaped manually or using fixtures to display a configuration corresponding to one of the desired lesions and is then employed to create the desired lesion. Thereafter the shapeable section is heated to cause it to resume its memorized configuration. Shaping, heating and ablating to create lesions are continued as necessary provide the desired set of lesions. In some embodiments of the invention, heating may be accomplished using heating elements built into the shapeable section.

    摘要翻译： 一种用于烧蚀组织以提供期望的病变组的方法和系统。 该系统包括具有细长可成形部分的消融装置，该部分承载诸如用于沿着可塑部分施加消融能量的电极的机构。 可成形部分包括具有记忆结构的形状记忆材料的构件。 可成型部分手动地或使用夹具来显示对应于所需病变之一的构造，然后用于产生所需的损伤。 此后，加热可塑部分使其恢复其记忆结构。 根据需要继续整形，加热和消融以产生损伤以提供所需的病变组。 在本发明的一些实施例中，可以使用内置于可塑部分中的加热元件来实现加热。

    Method and apparatus for tissue ablation
    42.
    发明授权
    Method and apparatus for tissue ablation 有权
    组织消融的方法和装置

    公开(公告)号：US07094235B2

    公开(公告)日：2006-08-22

    申请号：US10756437

    申请日：2004-01-13

    申请人： David E. Francischelli

    发明人： David E. Francischelli

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1445 ,  A61B18/1402 ,  A61B18/1442 ,  A61B2018/00994 ,  A61B2018/126 ,  A61B2018/1472

    摘要： A method for ablation in which a portion of atrial tissue around the pulmonary veins of the heart is ablated by a first elongated ablation component and a second elongated ablation component movable relative to the first ablation component and having means for magnetically attracting the first and second components toward one another. The magnetic means draw the first and second components toward one another to compress the atrial tissue therebetween, along the length of the first and second components and thereby position the device for ablation of the tissue.

    摘要翻译： 一种消融方法，其中通过第一细长消融部件消除心脏周围的肺静脉周围的一部分心房组织，并且第二细长消融部件可相对于第一消融部件移动并且具有用于磁吸引第一和第二部件的装置 朝向彼此 磁性装置沿着第一和第二部件的长度将第一和第二部件彼此拉伸以压缩其间的心房组织，从而定位用于组织消融的装置。

    Ablation system and method of use
    45.
    发明授权
    Ablation system and method of use 有权
    消融系统和使用方法

    公开(公告)号：US06648883B2

    公开(公告)日：2003-11-18

    申请号：US10132379

    申请日：2002-04-24

    申请人： David E. Francischelli ,  Mark T. Stewart ,  James R. Skarda ,  Rahul Mehra

    发明人： David E. Francischelli ,  Mark T. Stewart ,  James R. Skarda ,  Rahul Mehra

    IPC分类号： A61B1818

    CPC分类号： A61B18/1206 ,  A61B18/1445 ,  A61B2018/0016 ,  A61B2018/00351 ,  A61B2018/00363 ,  A61B2018/00577 ,  A61B2018/00702 ,  A61B2018/00761 ,  A61B2018/00791 ,  A61B2018/00875 ,  A61B2018/00886 ,  A61B2018/1467 ,  A61B2218/002

    摘要： A system and method for creating lesions and assessing their completeness or transmurality. Assessment of transmurality of a lesion is accomplished by monitoring the impedance of the tissue to be ablated. Rather than attempting to detect a desired drop or a desired increase impedance, completeness of a lesion is detected in response to the measured impedance remaining at a stable level for a desired period of time, referred to as an impedance plateau. The mechanism for determining transmurality of lesions adjacent individual electrodes or pairs may be used to deactivate individual electrodes or electrode pairs, when the lesions in tissue adjacent these individual electrodes or electrode pairs are complete, to create an essentially uniform lesion along the line of electrodes or electrode pairs, regardless of differences in tissue thickness adjacent the individual electrodes or electrode pairs.

    摘要翻译： 用于创建病变并评估其完整性或透视性的系统和方法。 通过监测要消融的组织的阻抗来评估病变的透壁性。 不是试图检测到期望的下降或期望的增加阻抗，而是响应于被测量的阻抗保持在稳定的电平，在期望的时间段（被称为阻抗平台）来检测损伤的完整性。 当邻近这些单独的电极或电极对的组织中的损伤完成时，用于确定邻近各个电极或对的损伤的透壁性的机制可用于使单个电极或电极对失活，以产生沿电极线或基本均匀的病变 电极对，而不管邻近各个电极或电极对的组织厚度的差异。