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313 条记录 (耗时 0.045 秒)

    Systems and methods for analyzing biopotential morphologies in body tissue using iterative techniques
    92.
    发明授权
    Systems and methods for analyzing biopotential morphologies in body tissue using iterative techniques 失效
    使用迭代技术分析身体组织中生物电位形态的系统和方法

    公开(公告)号：US5609157A

    公开(公告)日：1997-03-11

    申请号：US390701

    申请日：1995-02-17

    申请人： Dorin Panescu ,  James G. Whayne ,  David K. Swanson

    发明人： Dorin Panescu ,  James G. Whayne ,  David K. Swanson

    IPC分类号： A61B1/005 ,  A61B5/042 ,  A61B5/0452 ,  A61N1/05 ,  A61N1/40 ,  G06F17/00 ,  A61B5/04 ,  A61N1/36

    CPC分类号： A61N1/403 ,  A61B5/0422 ,  A61B5/04525 ,  A61B5/6855 ,  A61B5/6858 ,  A61N1/056 ,  A61B1/0051

    摘要： Systems and methods analyze biopotential morphologies in myocardial tissue by comparing a template of a cardiac event of known diagnosis to one or more samples of a paced cardiac event. The systems and methods generate an output based upon the comparison. The comparison yields an output, which indicates how alike the input sample is to the input template. The output can be used by the physician, for example, to aid in the location of sites that are potentially appropriate for ablation. The systems and methods employing different pacing and/or comparative techniques to provide multiple outputs. The pacing techniques that the systems and methods employ can comprise entrainment pacing or pace mapping. Various alternative comparison techniques include matched filtering, cross correlation, norm of the difference, and symmetry matching.

    摘要翻译： 系统和方法通过将已知诊断的心脏事件的模板与起搏心脏事件的一个或多个样本进行比较来分析心肌组织中的生物电位形态。 系统和方法基于比较产生输出。 比较产生一个输出，它表示输入样本与输入模板的相似度。 例如，医生可以使用输出来帮助可能适合消融的部位的位置。 采用不同起搏和/或比较技术提供多种输出的系统和方法。 系统和方法采用的起搏技术可以包括夹带起搏或速度映射。 各种替代比较技术包括匹配滤波，互相关，差异范数和对称匹配。

    Systems and methods for filtering artifacts from composite signals
    93.
    发明授权
    Systems and methods for filtering artifacts from composite signals 失效
    用于从复合信号中过滤伪影的系统和方法

    公开(公告)号：US5601088A

    公开(公告)日：1997-02-11

    申请号：US390104

    申请日：1995-02-17

    申请人： David K. Swanson ,  Dorin Panescu ,  James G. Whayne

    发明人： David K. Swanson ,  Dorin Panescu ,  James G. Whayne

    IPC分类号： A61B5/042 ,  A61N1/37 ,  G06F17/00 ,  H03H17/02 ,  A61B5/04

    CPC分类号： H03H17/0263 ,  A61B5/0422 ,  A61B5/6855 ,  A61B5/6858 ,  A61N1/3702 ,  Y10S128/901

    摘要： Analog or digital systems and methods filter an artifact from a composite signal, which comprises sample values arranged with respect to time. The systems and methods select sets of WL sample values in time-sequence along the composite signal and arrange the WL sample values of each set into ordered positions following a predetermined permutation. The systems and methods select one of the ordered positions, z, within each permutation. The systems and methods generate a filter output comprising the sample values occupying the ordered position, z, of each permutation in time-sequence with the composite signal. The systems and methods remove artifacts from signals derived from a biological event; for example, electrograms, electrocardiograms, electroencephalograms, electrogastrograms, electromyograms, and respiratory signals.

    摘要翻译： 模拟或数字系统和方法从复合信号中过滤伪像，其包括相对于时间排列的样本值。 系统和方法沿着复合信号在时间序列中选择WL样本值集合，并且将每个集合的WL采样值排列成预定排列之后的有序位置。 系统和方法在每个排列中选择一个有序位置z。 系统和方法产生一个滤波器输​​出，该滤波器输出包括采用复合信号在时间序列中占据每个排列的有序位置z的采样值。 系统和方法从衍生自生物事件的信号中去除伪影; 例如，电描记图，心电图，脑电图，电胃图，肌电图和呼吸信号。

    Graphical user interface for use with multiple electrode catheters
    94.
    发明授权
    Graphical user interface for use with multiple electrode catheters 有权
    用于多个电极导管的图形用户界面

    公开(公告)号：US06625482B1

    公开(公告)日：2003-09-23

    申请号：US09403802

    申请日：2000-03-07

    申请人： Dorin Panescu ,  David McGee ,  Daniel A. Dupree ,  David F. Dueiri ,  David K. Swanson ,  James G. Whayne ,  Robert R. Burnside ,  Tuan Nguyen

    发明人： Dorin Panescu ,  David McGee ,  Daniel A. Dupree ,  David F. Dueiri ,  David K. Swanson ,  James G. Whayne ,  Robert R. Burnside ,  Tuan Nguyen

    IPC分类号： A61B505

    CPC分类号： A61B5/6858 ,  A61B5/0422 ,  A61B5/7435 ,  A61B6/12 ,  A61B2560/045 ,  A61B2562/0209 ,  A61B2562/043 ,  G06F19/00

    摘要： 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.

    摘要翻译： 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。

    Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays
    95.
    发明授权
    Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays 有权
    用于识别多个电极阵列的物理，机械和功能属性的系统和方法

    公开(公告)号：US6165169A

    公开(公告)日：2000-12-26

    申请号：US292638

    申请日：1999-04-15

    申请人： Dorin Panescu ,  James G. Whayne ,  David K. Swanson

    发明人： Dorin Panescu ,  James G. Whayne ,  David K. Swanson

    IPC分类号： A61B17/00

    CPC分类号： A61B5/0538 ,  A61B5/6858 ,  A61B18/1492 ,  A61B2017/00482 ,  A61B2018/0016 ,  A61B2018/00267 ,  A61B2018/00357 ,  A61B2018/00577 ,  A61B2018/00988 ,  A61B2018/1467

    摘要： Systems and methods identify the physical, mechanical, and functional attributes of multiple electrode arrays. The systems and methods provide a structure adapted for contact with tissue in an interior body region. The structure possesses a physical property affecting tissue contact. The systems and methods include an identification code that uniquely identifies the physical property of the structure, such as size of the structure, or shape of the structure, or symmetry or lack of symmetry of the structure, or a stiffness value of the structure, or combinations thereof. The systems and methods also include an identification element attached in association with the structure to retain the identification code. The identification element is adapted to provide an output representative of the identification code. The structure also carries at least one electrode. The electrode possesses-a physical property, or both. The identification code uniquely identifies both the physical property of the structure and the physical or functional property of the electrode. The identification element retains one or more of these physical or functional properties for output and consideration prior to use of the structure.

    摘要翻译： 系统和方法识别多个电极阵列的物理，机械和功能属性。 所述系统和方法提供适于与内部身体区域中的组织接触的结构。 该结构具有影响组织接触的物理性质。 系统和方法包括唯一地识别结构的物理性质的识别码，例如结构的大小或结构的形状，或结构的对称性或缺乏对称性，或结构的刚度值，或 其组合。 系统和方法还包括与结构相关联的识别元件以保持识别码。 识别元件适于提供表示识别码的输出。 该结构还携带至少一个电极。 电极具有物理性质，或两者兼有。 识别码唯一地识别结构的物理性质和电极的物理或功能特性。 识别元件在使用结构之前保留这些物理或功能性质中的一种或多种用于输出和考虑。

    Tissue heating and ablation systems and methods using porous electrode structures with specified electrical resistivities
    97.
    发明授权
    Tissue heating and ablation systems and methods using porous electrode structures with specified electrical resistivities 失效
    组织加热和消融系统和使用具有规定电阻率的多孔电极结构的方法

    公开(公告)号：US6071278A

    公开(公告)日：2000-06-06

    申请号：US631074

    申请日：1996-04-12

    申请人： Dorin Panescu ,  David K. Swanson ,  James G. Whayne ,  Patrick M. Owens ,  Russell B. Thompson

    发明人： Dorin Panescu ,  David K. Swanson ,  James G. Whayne ,  Patrick M. Owens ,  Russell B. Thompson

    IPC分类号： A61B18/14 ,  A61B17/39

    CPC分类号： A61B18/1492 ,  A61B2018/00148 ,  A61B2018/00214

    摘要： Systems and methods for heating or ablating tissue use a porous electrode. The porous electrode comprises a wall having an interior area that contains an electrically conductive element. At least a portion of the wall comprises a porous material sized to block passage of blood cells while passing ions. The systems and methods position the porous electrode in contact with tissue. The systems and methods couple the electrically conductive element to a source of electrical energy. The systems and methods convey a fluid medium containing ions into the interior area to enable ionic transfer of electrical energy from the electrical conducting element through the fluid medium and porous material to ablate tissue. The systems and methods also specify differing electrical resistivities for the porous material based, at least in part, upon achieving differing desired tissue heating or ablation effects.

    摘要翻译： 用于加热或消融组织的系统和方法使用多孔电极。 多孔电极包括具有包含导电元件的内部区域的壁。 壁的至少一部分包括多孔材料，其尺寸设置成在通过离子时阻止血细胞通过。 系统和方法使多孔电极与组织接触。 系统和方法将导电元件耦合到电能源。 系统和方法将含有离子的流体介质传送到内部区域，以使电能从导电元件通过流体介质和多孔材料离子转移以烧蚀组织。 该系统和方法至少部分地基于实现不同的期望的组织加热或消融效果，为多孔材料指定不同的电阻率。