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    Ablation system and method of use
    7.
    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。

    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM
    8.
    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：US20120101434A1

    公开(公告)日：2012-04-26

    申请号：US13343815

    申请日：2012-01-05

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

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

    IPC分类号： A61M25/10

    CPC分类号： A61B17/00234 ,  A61B2017/00252 ,  A61M25/10

    摘要： A medical system for introduction through a septum separating a first heart chamber from a second heart chamber includes a guide catheter with a distal segment and a guide catheter lumen adapted to receive a mapping/ablation catheter. The guide catheter includes a deployable retention mechanism that engages the septum and inhibits advancement or retraction of the guide catheter through the septum. The system also includes an ablation device for delivering ablation energy to tissue. The ablation device is positioned in a heart chamber via the guide catheter lumen.

    摘要翻译： 通过将第一心室与第二心室隔开的隔膜引入的医疗系统包括具有远端段的引导导管和适于接收映射/消融导管的引导导管腔。 引导导管包括可展开的保持机构，其接合隔膜并阻止引导导管穿过隔膜的前进或缩回。 该系统还包括用于将消融能量传递给组织的消融装置。 消融装置通过引导导管管腔定位在心室中。

    Ablation system
    10.
    发明授权
    Ablation system 有权
    消融系统

    公开(公告)号：US07367972B2

    公开(公告)日：2008-05-06

    申请号：US10657987

    申请日：2003-09-09

    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： A61B18/18

    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 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： 创建病变并评估其完整性或透明度的系统。 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。