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    SYSTEMS AND METHODS FOR EXAMINING HEART TISSUE
    4.
    发明申请
    SYSTEMS AND METHODS FOR EXAMINING HEART TISSUE 审中-公开
    用于检查心脏组织的系统和方法

    公开(公告)号：WO1996025097A1

    公开(公告)日：1996-08-22

    申请号：PCT/US1996002190

    申请日：1996-02-16

    Applicant: EP TECHNOLOGIES, INC.

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

    IPC: A61B05/0402

    CPC classification number: A61B5/6855 ,  A61B5/0422 ,  A61B5/6858 ,  A61B18/1492 ,  A61B2090/065 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/056

    Abstract: Systems and methods use an array (20) of multiple electrodes (24) supported for operative association with a region of heart tissue, in tandem with a roving second electrode (36) supported for movement relative to the multiple electrodes for operative association with selected different regions of endocardial tissue within the heart. An analog or digital processing element (32) conditions one of the multiple electrodes and the roving electrode to emit a pacing signal while the other one of the multiple electrodes and the roving electrode records paced electro-grams occurring as a result of the pacing signal. A template of cardiac event of known diagnosis sensed using the array of multiple electrodes is input. A sample of a cardiac event acquired by pacing from at least one roving electrode and sensed with the array of multiple electrodes is input. The processing element and method electronically compare the sample to a template and generate an output.

    Abstract translation: 系统和方法使用多个电极（24）的阵列（20），其被支撑用于与心脏组织的区域有效地相关联，与被支撑用于相对于多个电极移动的粗纱第二电极（36）串联，以与所选择的不同的 心脏内心脏组织的区域。 模拟或数字处理元件（32）调节多个电极和粗纱电极之一以发出起搏信号，而多个电极和粗纱电极中的另一个记录起搏电针作为起搏信号的结果。 输入使用多个电极阵列感测的已知诊断的心脏事件的模板。 输入通过起搏从至少一个粗纱电极获取的心脏事件的样本，并用多个电极的阵列感测。 处理元件和方法将样本与模板进行电子比较并生成输出。

    SYSTEMS AND METHODS FOR FILTERING SIGNALS DERIVED FROM BIOLOGICAL EVENTS
    5.
    发明申请
    SYSTEMS AND METHODS FOR FILTERING SIGNALS DERIVED FROM BIOLOGICAL EVENTS 审中-公开
    用于过滤生物活动信号的系统和方法

    公开(公告)号：WO1996025093A1

    公开(公告)日：1996-08-22

    申请号：PCT/US1996001977

    申请日：1996-02-16

    Applicant: EP TECHNOLOGIES, INC.

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

    IPC: A61B05/0402

    CPC classification number: H03H17/0263 ,  A61B5/0422 ,  A61B5/6855 ,  A61B5/6858 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/3702

    Abstract: Systems and methods provide nonlinear, non-median filters (56) for signals derived from biological events. The systems and methods select a set of n sample values arranged with respect to time from the derived biological signal input. The systems and methods arrange the n sample values of the set into ordered positions following a predetermined permutation. The systems and methods select one of the ordered positions z within the permutation, where z is an odd positive integer greater or equal to one but less than or equal to n. The systems and methods generate a processed output (54) comprising the sample value occupying the ordered position z in the permutation.

    Abstract translation: 系统和方法为来自生物事件的信号提供非线性非中值滤波器（56）。 系统和方法从衍生的生物信号输入中选择相对于时间排列的一组n个样本值。 系统和方法将集合的n个样本值排列在预定排列之后的有序位置。 系统和方法选择置换中的有序位置z之一，其中z是大于或等于1但小于或等于n的奇正整数。 系统和方法产生包括在排列中占据有序位置z的样本值的经处理的输出（54）。

    SYSTEMS AND METHODS FOR EXAMINING ELECTRICAL EVENTS
    7.
    发明申请
    SYSTEMS AND METHODS FOR EXAMINING ELECTRICAL EVENTS 审中-公开
    用于检查电气事件的系统和方法

    公开(公告)号：WO1995020347A1

    公开(公告)日：1995-08-03

    申请号：PCT/US1995001121

    申请日：1995-01-27

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  PANESCU, Dorin ,  SWANSON, David, K. ,  MIROTZNIK, Mark, S. ,  SCHWARTZMAN, David, S.

    IPC: A61B05/04

    CPC classification number: A61B5/6855 ,  A61B5/0422 ,  A61B5/0452 ,  A61B5/0535 ,  A61B5/0538 ,  A61B5/6858 ,  A61B18/14 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2018/00214 ,  A61B2018/00755 ,  A61B2018/00761 ,  A61B2018/00875 ,  A61B2018/00886 ,  A61B2018/124 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1273 ,  A61B2018/128 ,  A61B2562/0209 ,  A61B2562/043

    Abstract: This invention is systems and methods to examine heart tissue morphology using a pair of electrodes (38), at least one of which is located in contact with heart tissue (12). The systems and methods transmit electrical current in a path through the contacted heart tissue (12) between the pair of the electrodes to derive a tissue electrical characteristic based, at least in part, upon sensing the impedance of the tissue lying in the path. The system and methods also sense with at least one of the electrodes the timing of local depolarization events in the contacted heart tissue. The systems and methods make possible the use of multiple endocardial electrodes (30) for taking multiple measurements of the electrical characteristics of heart tissue. Multiplexing can be used to facilitate data processing. The systems and methods also make possible the identification of regions of low relative electrical characteristics, indicative of infarcted tissue, without invasive surgical techniques.

    Abstract translation: 本发明是使用一对电极（38）检查心脏组织形态的系统和方法，其中至少一个位于与心脏组织（12）接触的位置。 所述系统和方法在通过所述一对电极之间的所接触的心脏组织（12）的路径中传输电流，以至少部分地基于感测位于所述路径中的组织的阻抗而导出组织电特征。 该系统和方法还与至少一个电极一起感知接触的心脏组织中局部去极化事件的定时。 系统和方法使得可以使用多个心内膜电极（30）来进行心脏组织的电特性的多次测量。 可以使用多路复用来促进数据处理。 系统和方法还可以鉴定低相对电特征的区域，指示梗死组织，无侵入性手术技术。

    DISPLAYING CARDIAC ELECTRICAL CHARACTERISTICS IN ISO-CHARACTERISTIC DISPLAYS
    8.
    发明申请
    DISPLAYING CARDIAC ELECTRICAL CHARACTERISTICS IN ISO-CHARACTERISTIC DISPLAYS 审中-公开
    在ISO特征显示中显示心脏电学特征

    公开(公告)号：WO1995020346A1

    公开(公告)日：1995-08-03

    申请号：PCT/US1995001120

    申请日：1995-01-27

    Applicant: EP TECHNOLOGIES, INC.

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

    IPC: A61B05/04

    CPC classification number: A61N1/056 ,  A61B5/0422 ,  A61B5/044 ,  A61B5/053 ,  A61B5/0538 ,  A61B5/6855 ,  A61B5/6858 ,  A61B18/00 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/36185 ,  A61N1/3686

    Abstract: This invention is systems and methods to examine heart tissue morphology using three or more spaced electrodes (38), at least two of which are located within the heart in contact with endocardial tissue. The systems and methods transmit electrical current through a region of heart tissue lying between selected pairs of electrodes (224), at least one of the electrodes in each pair being located within the heart. The systems and methods derive the electrical characteristic of tissue between the electrode pairs (206) based, at least in part, upon sensing tissue impedances.

    Abstract translation: 本发明是使用三个或更多个间隔开的电极（38）检查心脏组织形态的系统和方法，其中至少两个位于心脏内与心内膜组织接触。 系统和方法通过位于选定的电极对（224）之间的心脏组织的区域传输电流，每对电极中的至少一个位于心脏内。 系统和方法至少部分地基于感测组织阻抗而导出电极对（206）之间的组织的电特性。

    ELECTRODE SUPPORT SPLINES FOR CARDIAC SYSTEMS
    10.
    发明申请
    ELECTRODE SUPPORT SPLINES FOR CARDIAC SYSTEMS 审中-公开
    用于心脏系统的电极支撑分支

    公开(公告)号：WO1994007412A1

    公开(公告)日：1994-04-14

    申请号：PCT/US1993009059

    申请日：1993-09-24

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  KORDIS, Thomas, F.

    IPC: A61B05/0402

    CPC classification number: A61B5/6852 ,  A61B5/0422 ,  A61B5/6853 ,  A61B5/6858 ,  A61B5/6859 ,  A61B2562/0209 ,  A61B2562/043 ,  A61N1/05

    Abstract: An electrode support for use in an intraventricular cardiac diagnosis and treatment includes at least one elongated spline (76) that carries at least one electrode (22). The spline has a rectangular cross section. It has a substantially greater width than thickness. The spline can be flexed in one vertical plane that passes through its longitudinal axis. The spline resists twisting and resists flexing in all other planes passing through the axis.

    Abstract translation: 用于心室内心脏诊断和治疗的电极支撑件包括至少一个延伸的花键（76），其携带至少一个电极（22）。 花键具有矩形截面。 它具有比厚度大得多的宽度。 花键可以在穿过其纵向轴线的一个垂直平面中弯曲。 花键抵抗扭转并抵抗穿过轴线的所有其他平面的弯​​曲。

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