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19 条记录 (耗时 0.036 秒)

    Mapping and Ablation Method for the Treatment of Ventricular Tachycardia
    11.
    发明申请
    Mapping and Ablation Method for the Treatment of Ventricular Tachycardia 有权
    心室心动过速治疗的绘图和消融方法

    公开(公告)号：US20080281391A1

    公开(公告)日：2008-11-13

    申请号：US11597082

    申请日：2005-05-17

    申请人： David MacAdam ,  Ding Sheng He

    发明人： David MacAdam ,  Ding Sheng He

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1492 ,  A61B5/042 ,  A61B2018/00214 ,  A61B2018/00839

    摘要： An apparatus for mapping and/or ablating tissue includes a braided conductive member that that may be inverted to provide a ring-shaped surface. When a distal tip of the braided conductive member is retracted within the braided conductive member, the lack of a protrusion allows the ring-shaped surface to contact a tissue wall such as a cardiac wall. In an alternative configuration, the braided conductive member may be configured with the distal portion forming a proboscis that can be used to stably position the braided conductive member relative to a blood vessel, such as a ventricular outflow tract. The braided conductive member has a plurality of electronically active sites that may be accessed individually for stable mapping over a broad area for stable mapping or ablation to form broad and deep lesions.

    摘要翻译： 用于映射和/或消融组织的装置包括可被倒置以提供环形表面的编织导电构件。 当编织导电构件的远侧末端缩回到编织导电构件内时，缺少突起允许环形表面接触诸如心脏壁的组织壁。 在替代配置中，编织导电构件可构造成具有形成长鼻的远端部分，其可用于相对于诸如心室流出道的血管来稳定地定位编织导电构件。 编织导电构件具有多个电子活性位点，其可以单独访问以在广泛区域上稳定映射以用于稳定的映射或消融以形成宽而深的损伤。

    Mapping and ablation method for the treatment of ventricular tachycardia
    13.
    发明授权
    Mapping and ablation method for the treatment of ventricular tachycardia 有权
    用于治疗室性心动过速的映射和消融方法

    公开(公告)号：US08945116B2

    公开(公告)日：2015-02-03

    申请号：US11597082

    申请日：2005-05-17

    申请人： David MacAdam ,  Ding Sheng He

    发明人： David MacAdam ,  Ding Sheng He

    IPC分类号： A61B18/12 ,  A61B5/042 ,  A61B18/14 ,  A61B18/00

    CPC分类号： A61B18/1492 ,  A61B5/042 ,  A61B2018/00214 ,  A61B2018/00839

    摘要： An apparatus for mapping and/or ablating tissue includes a braided conductive member that may be inverted to provide a ring-shaped surface. When a distal tip of the braided conductive member is retracted within the braided conductive member, the lack of a protrusion allows the ring-shaped surface to contact a tissue wall such as a cardiac wall. In an alternative configuration, the braided conductive member may be configured with the distal portion forming a proboscis that can be used to stably position the braided conductive member relative to a blood vessel, such as a ventricular outflow tract. The braided conductive member has a plurality of electronically active sites that may be accessed individually for stable mapping over a broad area for stable mapping or ablation to form broad and deep lesions.

    摘要翻译： 用于映射和/或消融组织的装置包括编织导电构件，其可被倒置以提供环形表面。 当编织导电构件的远侧末端缩回到编织导电构件内时，缺少突起允许环形表面接触诸如心脏壁的组织壁。 在替代配置中，编织导电构件可构造成具有形成长鼻的远端部分，其可用于相对于诸如心室流出道的血管来稳定地定位编织导电构件。 编织导电构件具有多个电子活性位点，其可以单独访问以在广泛区域上稳定映射以用于稳定的映射或消融以形成宽而深的损伤。

    Methods and apparatus for configuring an ablation source of a catheter
    14.
    发明授权
    Methods and apparatus for configuring an ablation source of a catheter 有权
    用于配置导管消融源的方法和装置

    公开(公告)号：US08845558B2

    公开(公告)日：2014-09-30

    申请号：US11885214

    申请日：2006-02-28

    申请人： David MacAdam ,  Timothy Collins

    发明人： David MacAdam ,  Timothy Collins

    IPC分类号： A61N7/00 ,  A61N7/02

    CPC分类号： A61B17/2202 ,  A61B90/39 ,  A61B2017/00053 ,  A61B2017/00084 ,  A61B2017/00088 ,  A61B2017/00092 ,  A61B2017/00115 ,  A61B2017/00243 ,  A61B2017/00336 ,  A61B2017/22021 ,  A61B2017/2912

    摘要： Embodiments of the invention relate to a catheter having an ultrasound energy emitting region that is both rotatable about and slidable along the shaft of the catheter. One embodiment is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator coupled to the handle and the ultrasound transducer that is adapted to move the ultrasound transducer both longitudinally along the shaft and circumferentially about the shaft. Another embodiment of the invention is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator that is adapted to move the sheath both longitudinally along the shaft and circumferentially about the shaft to orient a window of the sheath in a desired position.

    摘要翻译： 本发明的实施例涉及具有超声能量发射区域的导管，所述超声能量发射区域可以沿着导管的轴旋转并且可沿着导管的轴滑动。 一个实施例涉及包括耦合到所述轴的超声换能器的导管，以及耦合到所述手柄和所述超声换能器的至少一个致动器，所述致动器适于沿所述轴纵向移动所述超声换能器并围绕所述轴周向移动。 本发明的另一个实施例涉及一种导管，其包括联接到所述轴的超声波换能器，以及至少一个致动器，其适于沿所述轴纵向移动并且围绕所述轴周向地移动所述护套以将所述护套的窗口定向在 所期望的职位。

    Electrophysiology catheter for mapping and/or ablation
    17.
    发明授权
    Electrophysiology catheter for mapping and/or ablation 有权
    用于映射和/或消融的电生理学导管

    公开(公告)号：US07300438B2

    公开(公告)日：2007-11-27

    申请号：US10475942

    申请日：2002-03-29

    申请人： Gary S. Falwell ,  Steven J. Burns ,  Charles A. Gibson ,  David MacAdam ,  Nickolas G. Davis

    发明人： Gary S. Falwell ,  Steven J. Burns ,  Charles A. Gibson ,  David MacAdam ,  Nickolas G. Davis

    IPC分类号： A61B18/18 ,  A61M31/00

    CPC分类号： A61B18/1492 ,  A61B18/1815 ,  A61B2018/00839 ,  A61B2018/1435

    摘要： Catheters for mapping and/or ablation are disclosed. In one embodiment, the catheter comprises a handle, a flexible shaft, a tip assembly, and a cable. The handle includes an actuator and is attached, at its distal end, to the proximal end of the flexible shaft. The flexible shaft has a longitudinal axis that extends along a length of the shaft. The proximal end of the tip assembly is attached to the distal end of the shaft and includes a fixed bend of approximatley ninety degrees relative to the longitudinal axis of the shaft. The distal end of the tip assembly includes an arcuate curve having a diameter. The arcuate curve is oriented in a plane that is approximatley perpendicular to the longitudinal axis of the shaft. The cable is attached to the actuator and the distal end of the tip assembly, and extends through the shaft. The cable is adapted to change the diameter of the arcuate curve in response to movement of the actuator.

    摘要翻译： 公开了用于映射和/或消融的导管。 在一个实施例中，导管包括手柄，柔性轴，尖端组件和电缆。 手柄包括致动器，并且在其远端处附接到柔性轴的近端。 柔性轴具有沿着轴的长度延伸的纵向轴线。 尖端组件的近端附接到轴的远端，并且包括相对于轴的纵向轴线近似90度的固定弯曲部。 尖端组件的远端包括具有直径的弓形曲线。 弧形曲线在垂直于轴的纵向轴线的平面中定向。 电缆连接到致动器和尖端组件的远端，并延伸穿过轴。 电缆适于响应于致动器的移动而改变弧形曲线的直径。

    Electrophysiology loop catheter
    18.
    发明申请
    Electrophysiology loop catheter 审中-公开
    电生理环路导管

    公开(公告)号：US20060241366A1

    公开(公告)日：2006-10-26

    申请号：US10533596

    申请日：2003-10-31

    申请人： Gary Falwell ,  David MacAdam ,  Darany Kuong

    发明人： Gary Falwell ,  David MacAdam ,  Darany Kuong

    IPC分类号： A61B5/04 ,  A61B18/14

    CPC分类号： A61B18/1492 ,  A61B5/0422 ,  A61B5/6856 ,  A61B18/1815 ,  A61B2018/00273 ,  A61B2018/00375 ,  A61B2018/00791 ,  A61B2018/1286 ,  A61B2018/1407 ,  A61B2018/1435 ,  A61B2018/1467

    摘要： An electrophysiology catheter including control, localization, and/or fluid delivery features, and methods of using the same. One embodiment of the invention is directed to an electrophysiology catheter including a superelastic wire and a cable, and a method of controlling the catheter using the cable. Another embodiment is directed to an electrophysiology catheter including an adhesive to bias the orientation of the catheter. A further embodiment is directed to an electrophysiology catheter including adhesive and one or more cables, and a method of controlling the catheter using the one or more cables. Another embodiment is directed to a method including acts of injecting a fluid into the heart of a patient and adjusting the diameter of an arcuate curve of the catheter. Further embodiments are directed to a catheter having multiple position sensors on an arcuate curve of the catheter, or a position sensor associated with a movable electrode of the catheter.

    摘要翻译： 包括对照，定位和/或流体递送特征的电生理学导管及其使用方法。 本发明的一个实施例涉及包括超弹性线和电缆的电生理学导管，以及使用电缆控制导管的方法。 另一个实施例涉及一种电生理学导管，其包括用于偏压导管取向的粘合剂。 进一步的实施例涉及包括粘合剂和一个或多个电缆的电生理学导管，以及使用所述一个或多个电缆来控制导管的方法。 另一个实施例涉及一种包括将流体注入患者心脏并调节导管弓形曲线的直径的动作的方法。 另外的实施例涉及在导管的弓形曲线上具有多个位置传感器的导管，或与导管的可移动电极相关联的位置传感器。