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    Method and system for treatment of atrial tachyarrhythmias
    1.
    发明授权
    Method and system for treatment of atrial tachyarrhythmias 有权
    治疗房性快速性心律失常的方法和系统

    公开(公告)号：US08512337B2

    公开(公告)日：2013-08-20

    申请号：US10923073

    申请日：2004-08-20

    申请人： David E. Francischelli ,  Rahul Mehra

    发明人： David E. Francischelli ,  Rahul Mehra

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1445 ,  A61B18/1402 ,  A61B2017/2945 ,  A61B2018/00994 ,  A61B2018/126 ,  A61B2018/1432 ,  A61B2018/1472

    摘要： A method of and a system for treatment of atrial tachyarrhythmias. The system includes a set of hemostats having elongated opposing jaws carrying mechanisms for applying ablation energy along the jaws. The jaws having straight and curved configurations selected to allow arrangement of the jaws of along opposite sides of walls of a patient's atrium. Treatment is accomplished by applying of ablation energy to the walls of a patient's artria to create lines of lesion corresponding generally to incisions employed in a Maze type procedure.

    摘要翻译： 一种治疗房性快速性心律失常的方法和系统。 该系统包括一组具有延长的相对的夹爪的止血器，该钳口携带用于沿钳口施加消融能量的机构。 钳口具有直的和弯曲的构造，其被选择为允许沿着病人心房的壁的相对侧布置钳口。 通过将消融能量施加到患者的肌肉的壁上来实现治疗，以产生通常对于迷宫类型手术中使用的切口相应的损伤线。

    Method and system for treatment of atrial tachyarrhythmias
    3.
    发明授权
    Method and system for treatment of atrial tachyarrhythmias 有权
    治疗房性快速性心律失常的方法和系统

    公开(公告)号：US06807968B2

    公开(公告)日：2004-10-26

    申请号：US10015690

    申请日：2001-12-12

    申请人： David E. Francischelli ,  Rahul Mehra

    发明人： David E. Francischelli ,  Rahul Mehra

    IPC分类号： A61B1818

    CPC分类号： A61B18/1445 ,  A61B18/1402 ,  A61B2017/2945 ,  A61B2018/00994 ,  A61B2018/126 ,  A61B2018/1432 ,  A61B2018/1472

    摘要： A method of and a system for treatment of atrial tachyarrhythmias. The system includes a set of hemostats having elongated opposing jaws carrying mechanisms for applying ablation energy along the jaws. The jaws having straight and curved configurations selected to allow arrangement of the jaws of along opposite sides of walls of a patient's atrium. Treatment is accomplished by applying of ablation energy to the walls of a patient's artria to create lines of lesion corresponding generally to incisions employed in a Maze type procedure.

    摘要翻译： 一种治疗房性快速性心律失常的方法和系统。 该系统包括一组具有延长的相对的夹爪的止血器，该钳口携带用于沿钳口施加消融能量的机构。 钳口具有直的和弯曲的构造，其被选择为允许沿着病人心房的壁的相对侧布置钳口。 通过将消融能量施加到患者的肌肉的壁上来实现治疗，以产生通常对于迷宫类型手术中使用的切口相应的损伤线。

    Ablation catheter and method for isolating a pulmonary vein
    5.
    发明授权
    Ablation catheter and method for isolating a pulmonary vein 有权
    消融导管和隔离肺静脉的方法

    公开(公告)号：US06325797B1

    公开(公告)日：2001-12-04

    申请号：US09286048

    申请日：1999-04-05

    申请人： Mark T. Stewart ,  William J. Flickinger ,  David E. Francischelli ,  Rahul Mehra ,  Xiaoyi Min

    发明人： Mark T. Stewart ,  William J. Flickinger ,  David E. Francischelli ,  Rahul Mehra ,  Xiaoyi Min

    IPC分类号： A61B1814

    CPC分类号： A61B18/1492 ,  A61B2017/00044 ,  A61B2017/00243 ,  A61B2017/00867 ,  A61B2018/00214 ,  A61B2018/1407 ,  A61B2018/1435

    摘要： A catheter assembly and method for treatment of cardiac arrhythmia, for example, atrial fibrillation, by electrically isolating a vessel, such as a pulmonary vein, from a chamber, such as the left atrium. The catheter assembly includes a catheter body and at least one electrode. The catheter body includes a proximal portion, an intermediate portion and a distal portion. The intermediate portion extends from the proximal portion and defines a longitudinal axis. The distal portion extends from the intermediate portion and forms a substantially closed loop transverse to the longitudinal axis. The at least one electrode is disposed along the loop. With this configuration, the loop is axially directed into contact with the chamber wall about the vessel ostium. Upon energization, the electrode ablates a continuous lesion pattern about the vessel ostium, thereby electrically isolating the vessel from the chamber.

    摘要翻译： 一种用于治疗心律失常（例如心房颤动）的导管组件和方法，通过诸如左心房的腔室电隔离血管（例如肺静脉）。 导管组件包括导管主体和至少一个电极。 导管主体包括近端部分，中间部分和远端部分。 中间部分从近端部分延伸并且限定纵向轴线。 远侧部分从中间部分延伸并且形成横向于纵向轴线的基本上闭合的环。 沿着环设置至少一个电极。 利用这种构造，环路被轴向地指向与容器孔周围的室壁接触。 在通电时，电极消除围绕血管口的连续病变图案，从而将容器与腔室电隔离。

    Device and method for determining tissue thickness and creating cardiac ablation lesions
    8.
    发明授权
    Device and method for determining tissue thickness and creating cardiac ablation lesions 失效
    用于确定组织厚度并产生心脏消融病变的装置和方法

    公开(公告)号：US08333764B2

    公开(公告)日：2012-12-18

    申请号：US10844213

    申请日：2004-05-12

    申请人： David E. Francischelli ,  Eduardo N. Warman ,  Rahul Mehra

    发明人： David E. Francischelli ,  Eduardo N. Warman ,  Rahul Mehra

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B2018/00666 ,  A61B2018/1861 ,  A61B2090/061 ,  A61B2090/064

    摘要： A tissue ablation device has a handle and an ablation head coupled to the handle. The ablation head has a first jaw, a second jaw, and an ablative element coupled to at least one of the first and second jaws. A thickness measurement device may be coupled to the ablation device to indicate the distance separating the first and second jaws. Further, a force measurement device may be coupled to the ablation device to measure the force being applied by the first and second jaws to a piece of tissue. Further, a strain measurement device may be coupled to the ablation device to indicate the strain resulting in a piece of tissue disposed between the first and second jaws when a stress is applied to the tissue.

    摘要翻译： 组织消融装置具有手柄和联接到手柄的消融头。 消融头具有联接到第一和第二钳口中的至少一个的第一钳口，第二钳口和消融元件。 厚度测量装置可以联接到消融装置以指示分离第一和第二钳口的距离。 此外，力测量装置可以联接到消融装置以测量由第一和第二钳口施加到一片组织上的力。 此外，当应力施加到组织时，应变测量装置可以联接到消融装置以指示当应力施加到组织上时产生设置在第一和第二钳口之间的一片组织的应变。

    Ablation system and method of use
    10.
    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。