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85 条记录 (耗时 0.079 秒)

    Heart wall ablation/mapping catheter and method
    71.
    发明授权
    Heart wall ablation/mapping catheter and method 失效
    心壁消融/测绘导管及方法

    公开(公告)号：US07706894B2

    公开(公告)日：2010-04-27

    申请号：US11115028

    申请日：2005-04-26

    申请人： Mark T. Stewart ,  Johnson E. Goode ,  James M. Speckien ,  Mark A. Taube ,  Eduardo N. Warman

    发明人： Mark T. Stewart ,  Johnson E. Goode ,  James M. Speckien ,  Mark A. Taube ,  Eduardo N. Warman

    IPC分类号： A61N1/05

    CPC分类号： A61M25/0147 ,  A61B18/1492 ,  A61B2017/00243 ,  A61B2018/00916 ,  A61M25/0152 ,  A61M2025/015 ,  A61M2025/0161

    摘要： Steerable electrophysiology catheters for use in mapping and/or ablation of accessory pathways in myocardial tissue of the heart wall and methods of use thereof are disclosed. The catheter comprises a catheter body and handle, the catheter body having a proximal section and a distal section and manipulators that enable the deflection of a distal segment of the distal tip section with respect to the independently formed curvature of a proximal segment of the distal tip section through a bending or knuckle motion of an intermediate segment between the proximal and distal segments. A wide angular range of deflection within a very small curve or bend radius in the intermediate segment is obtained. At least one distal tip electrode is preferably confined to the distal segment which can have a straight axis extending distally from the intermediate segment. The curvature of the proximal segment and the bending angle of the intermediate segment are independently selectable. The axial alignment of the distal segment with respect to the nominal axis of the proximal shaft section of the catheter body can be varied between substantially axially aligned (0° curvature) in an abrupt knuckle bend through a range of about −90° to about +180° within a bending radius of between about 2.0 mm and 7.0 mm and preferably less than 5.0 mm. The proximal segment curve can be independently formed in a range of about −180° through about +270° with respect to the axis of the proximal shaft section to provide an optimum angular orientation of the distal electrode(s). The distal segment can comprise a highly flexible elongated distal segment body and electrode(s) that conform with the shape and curvature of the heart wall.

    摘要翻译： 公开了用于在心壁的心肌组织中辅助通路的测绘和/或消融的可操纵的电生理学导管及其使用方法。 导管包括导管主体和手柄，导管主体具有近端部分和远端部分以及操纵器，其能够相对于远端尖端的近端段的独立形成的曲率偏转远侧末端部分的远端部分 通过近端段和远端段之间的中间段的弯曲或转向关节运动。 获得在中间段内的非常小的曲线或弯曲半径内的宽的角度范围的偏转。 至少一个远端末端电极优选地限制在远端段，该远段可以具有从中间段向远侧延伸的直轴。 近端段的曲率和中间段的弯曲角度是可独立选择的。 远侧段相对于导管主体的近端轴部分的标称轴线的轴向对准可以在突变关节弯曲部中的大致轴向对准（0°曲率）之间变化约-90°至约+ 弯曲半径为约2.0mm至7.0mm，优选小于5.0mm的180°。 近端段曲线可相对于近轴部分的轴线独立地形成在约-180°至约+ 270°的范围内，以提供远端电极的最佳角度取向。 远端段可以包括高度柔性的细长远端段体和符合心壁的形状和曲率的电极。

    Method and apparatus for monitoring heart rate
    73.
    发明授权
    Method and apparatus for monitoring heart rate 有权
    监测心率的方法和装置

    公开(公告)号：US06317626B1

    公开(公告)日：2001-11-13

    申请号：US09433286

    申请日：1999-11-03

    申请人： Eduardo N. Warman

    发明人： Eduardo N. Warman

    IPC分类号： A61B50432

    CPC分类号： A61N1/3702

    摘要： A monitoring device for implant in a patient's body and a method of its use. The monitoring device is provided with an electrogram amplifier, a sensing electrode coupled to the amplifier, and a memory for storing electrogram signals sensed by the electrogram amplifier. Responsive to detection of an arrhythmia, the monitor generates an internal electrogram storage trigger signal and initiates a patient trigger confirmation period. In response to receiving a patient trigger signal within the confirmation period, the monitor stores electrogram signals. The monitor preferably also defines an internal trigger confirmation period following a patient trigger signal and in response to an internal electrogram storage trigger signal within the internal trigger confirmation period, also stores electrogram signals.

    摘要翻译： 一种用于植入患者体内的监测装置及其使用方法。 监视装置设置有电摄影放大器，耦合到放大器的感测电极以及用于存储由电描记放大器感测的电描记信号的存储器。 响应于心律失常的检测，监视器产生内部电描记图存储触发信号并启动患者触发确认期。 响应于在确认期间内接收到患者触发信号，监视器存储电描记信号。 监视器还优选地定义在患者触发信号之后的内部触发确认时段，并且响应于内部触发确认时段内的内部电描记图存储触发信号，还存储电描记信号。

    Device and method for determining tissue thickness and creating cardiac ablation lesions
    77.
    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。