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    Structures for supporting porous electrode elements
    21.
    发明申请
    Structures for supporting porous electrode elements 失效
    用于支撑多孔电极元件的结构

    公开(公告)号：US20020161422A1

    公开(公告)日：2002-10-31

    申请号：US09996235

    申请日：2001-11-27

    Applicant: EP Technologies, Inc.

    Inventor： David K. Swanson ,  Russell B. Thompson ,  Sidney D. Fleischman ,  Dorin Panescu ,  James G. Whayne

    IPC: A61B018/18

    CPC classification number: A61N1/06 ,  A61B18/1492 ,  A61B2018/00148 ,  A61B2018/00214

    Abstract: A catheter assembly comprising a elongated, flexible support structure having an axis. The assembly also includes an elongated porous electrode assembly carried by the support structure along the axis for contact with tissue. The elongated porous electrode assembly comprises a wall having an exterior peripherally surrounding an interior area, a lumen to convey a medium containing ions into the interior area, and an element coupling the medium within the interior area to a source of electrical energy. At least a portion of the wall comprising a porous material is sized to allow passage of ions contained in the medium to thereby enable ionic transport of electrical energy through the porous material to the exterior of the wall to form a continuous elongated lesion pattern in tissue contacted by the wall. The support structure can have a curvilinear geometry, e.g., a loop shape, and the elongated porous electrode assembly conforms to the curvilinear geometry.

    Abstract translation: 导管组件，其包括具有轴的细长的柔性支撑结构。 组件还包括由支撑结构承载的细长多孔电极组件，沿着轴线与组织接触。 细长的多孔电极组件包括具有周围围绕内部区域的外部的外壁，用于将含有离子的介质输送到内部区域的内腔，以及将内部区域内的介质耦合到电能源的元件。 包含多孔材料的壁的至少一部分的尺寸设定成允许包含在介质中的离子通过，从而使得电能通过多孔材料离子传递到壁的外部，以在组织接触中形成连续的细长损伤图案 在墙上。 支撑结构可以具有曲线几何形状，例如环形，并且细长多孔电极组件符合曲线几何形状。

    Systems and methods for assessing stability of an operative instrument in a body region
    22.
    发明申请
    Systems and methods for assessing stability of an operative instrument in a body region 审中-公开
    评估体内区域手术器械稳定性的系统和方法

    公开(公告)号：US20020058870A1

    公开(公告)日：2002-05-16

    申请号：US09999662

    申请日：2001-10-31

    Applicant: EP Technologies, Inc.

    Inventor： Dorin Panescu ,  David K. Swanson ,  James G. Whayne

    IPC: A61B005/00

    CPC classification number: A61B5/6858 ,  A61B5/0422 ,  A61B5/7435 ,  A61B6/12 ,  A61B2560/045 ,  A61B2562/043

    Abstract: A graphical user interface (GUI) is provided for assisting medical personnel in interpreting data collected by a multiple electrode catheter deployed within the body. The GUI generates and displays an image of the multiple electrode catheter. By manipulating appropriate controls, the medical personnel are able to change the orientation of the displayed image until it matches the orientation of the actual multiple electrode catheter as seen on a fluoroscope. Afterwards, the medical personnel can determine the relative position and orientation of the catheter by reference to the GUI generated image. To aid in interpreting data recovered by the catheter, the individual electrodes and splines are highlighted and labeled. Electrodes recovering particular types of physiological waveforms can be automatically identified and highlighted. Comments and anatomic landmarks can be inserted where desired to further assist in interpreting data. Views from various, virtual fluoroangles can be obtained, and various images can be recorded, stored and printed. The position of a roving electrode can also be indicated.

    Abstract translation: 提供图形用户界面（GUI），用于帮助医务人员解释由部署在身体内的多个电极导管收集的数据。 GUI生成并显示多个电极导管的图像。 通过操纵适当的控制，医务人员能够改变所显示的图像的方向，直到其与荧光镜上所见的实际多电极导管的取向相匹配。 之后，参照GUI生成的图像，医务人员可以确定导管的相对位置和取向。 为了帮助解释由导管回收的数据，单独的电极和花键被突出显示并标记。 恢复特定类型生理波形的电极可以自动识别和突出显示。 可以在需要时插入评论和解剖标志，以进一步帮助解释数据。 可以获得来自各种虚拟荧光的视图，并且可以记录，存储和打印各种图像。 还可以指出粗纱电极的位置。

    ASYMMETRIC MULTIPLE ELECTRODE SUPPORT STRUCTURES
    24.
    发明申请
    ASYMMETRIC MULTIPLE ELECTRODE SUPPORT STRUCTURES 审中-公开
    不对称多电极支持结构

    公开(公告)号：WO1998018520A2

    公开(公告)日：1998-05-07

    申请号：PCT/US1997019372

    申请日：1997-10-27

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  SWANSON, David, K. ,  WHAYNE, James, G. ,  KORDIS, Thomas, F. ,  PANESCU, Dorin

    IPC: A61N01/05

    CPC classification number: A61B5/0422 ,  A61N1/056 ,  A61N1/0565 ,  A61N1/06 ,  A61N1/20 ,  A61N1/403

    Abstract: Multiple electrode support structures (20(a)) have asymmetric geometries, either axially, or radially, or both. The asymmetric support structures are assembled from spline elements (51, 58) that extend between a distal hub (24) and a proximal base (26). In one embodiment, the spline elements (51, 58) are circumferentially spaced about the distal hub (24) in a radially asymmetric fashion, creating a greater density of spline elements in one region of the structure than in another region. In the same or another embodiment, the spline elements (51, 58) are preformed in an axially asymmetric fashion along their lengths, creating a different geometry in their distal regions than in their proximal regions.

    Abstract translation: 多个电极支撑结构（20（a））具有轴向或径向或两者的不对称几何形状。 不对称支撑结构由在远侧轮毂（24）和近侧基座（26）之间延伸的花键元件（51,58）组装。 在一个实施例中，花键元件（51,58）以径向不对称的方式围绕远侧轮毂（24）周向间隔开，从而在结构的一个区域中产生比在另一个区域更大的花键元件密度。 在相同或另一个实施例中，花键元件（51,58）沿其长度以轴向不对称方式预成型，在其远侧区域中产生与其近端区域不同的几何形状。

    TISSUE HEATING AND ABLATION SYSTEMS AND METHODS WHICH PREDICT MAXIMUM TISSUE TEMPERATURE
    27.
    发明申请
    TISSUE HEATING AND ABLATION SYSTEMS AND METHODS WHICH PREDICT MAXIMUM TISSUE TEMPERATURE 审中-公开
    组织加热和吸收系统和预测最大组织温度的方法

    公开(公告)号：WO1996039967A1

    公开(公告)日：1996-12-19

    申请号：PCT/US1996009598

    申请日：1996-06-07

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  PANESCU, Dorin ,  FLEISCHMAN, Sidney, D. ,  SWANSON, David, K.

    IPC: A61B17/38

    CPC classification number: A61B18/1206 ,  A61B18/1402 ,  A61B18/1492 ,  A61B2018/00083 ,  A61B2018/00095 ,  A61B2018/00791 ,  A61B2018/00803 ,  A61N1/403

    Abstract: This invention is systems and methods to heat or ablate body or ablation energy to a tissue region. The systems and methods measure a first temperature using a temperature sensing element associated with the electrode (16). The systems and methods also measure a second temperature using a temperature sensing element associated with the electrode (16). The systems and methods process at least one of the first and second temperatures to derive a prediction of maximum temperature of the tissue region. The systems and methods generate an output that controls the transmission of the heating or ablation energy based, at least in part, upon the maximum tissue temperature prediction.

    Abstract translation: 本发明是将身体或消融能量加热或消融到组织区域的系统和方法。 系统和方法使用与电极（16）相关联的温度感测元件来测量第一温度。 系统和方法还使用与电极（16）相关联的温度感测元件测量第二温度。 系统和方法处理第一和第二温度中的至少一个以导出组织区域的最大温度的预测。 系统和方法至少部分地基于最大组织温度预测产生控制加热或消融能量传递的输出。

    ACQUISITION OF ENDOCARDIALLY OR EPICARDIALLY PACED ELECTROCARDIOGRAMS
    30.
    发明申请
    ACQUISITION OF ENDOCARDIALLY OR EPICARDIALLY PACED ELECTROCARDIOGRAMS 审中-公开
    内部或外部电离电极的获取

    公开(公告)号：WO1996025096A1

    公开(公告)日：1996-08-22

    申请号：PCT/US1996002092

    申请日：1996-02-16

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  SWANSON, David, K. ,  WHAYNE, James, G. ,  PANESCU, Dorin

    IPC: A61B05/0402

    CPC classification number: A61N1/056 ,  A61B1/0051 ,  A61B5/0422 ,  A61B5/04525 ,  A61B5/6855 ,  A61B5/6858 ,  A61B18/1492 ,  A61B2562/0209 ,  A61B2562/043

    Abstract: Systems and methods acquire electrocardiograms using a first electrode (24) associated with a region of heart tissue and a second body surface electrode. An analog or digital processing element (32) is coupled to the first and second electrodes for conditioning the first electrode to emit a pacing signal (48) and for conditioning the second electrode to sense paced electrocardiograms occurring as a result of the pacing signal. The systems and methods also employ a template of an electrocardiogram of a cardiac event of known diagnosis; for example an arrhythmia that the physician seeks to treat. The systems and methods compare this event-specific template to a sample of a paced electrocardiogram. The comparison yields a matching coefficient indicating how alike the input sample is to the input template. The matching coefficient can be used by the physician, for example to aid in the location of sites that are potentially appropriate for ablation (46).

    Abstract translation: 系统和方法使用与心脏组织区域和第二体表电极相关联的第一电极（24）获取心电图。 模拟或数字处理元件（32）耦合到第一和第二电极，用于调节第一电极以发出起搏信号（48），并用于调节第二电极以感测由于起搏信号而产生的起搏心电图。 系统和方法还采用已知诊断的心脏事件的心电图的模板; 例如医师寻求治疗的心律失常。 系统和方法将此事件特定的模板与起搏心电图的样本进行比较。 比较产生一个表示输入样本与输入模板相似度的匹配系数。 匹配系数可由医生使用，例如帮助位置可能适合消融的位置（46​​）。

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