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    Systems and methods for analyzing biopotential morphologies in body tissue
    75.
    发明授权
    Systems and methods for analyzing biopotential morphologies in body tissue 失效
    用于分析身体组织中生物电位形态的系统和方法

    公开(公告)号：US6101409A

    公开(公告)日：2000-08-08

    申请号：US944110

    申请日：1997-10-06

    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： A61B1/005 ,  A61B5/042 ,  A61B5/0452 ,  A61N1/05 ,  A61N1/40 ,  G06F17/00 ,  A61B5/0402 ,  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 body tissue. The systems and methods use a template of a biopotential event of known cause in body tissue. The systems and methods compare this template to a sample of a biopotential event externally triggered in body tissue. The systems and methods generate an output based upon the comparison. The systems and methods can be used to compare an event-specific template of a cardiac event of known diagnosis to a sample of a paced cardiac event. 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.

    摘要翻译： 系统和方法分析身体组织中的生物电位形态。 系统和方法使用身体组织中已知原因的生物潜在事件的模板。 系统和方法将该模板与身体组织中外部触发的生物潜在事件的样本进行比较。 系统和方法基于比较产生输出。 系统和方法可用于将已知诊断的心脏事件的事件特定模板与起搏心脏事件的样本进行比较。 比较产生一个表示输入样本与输入模板相似的匹配系数。 例如，医生可以使用匹配系数来帮助可能适合于消融的部位的位置。

    Systems and methods for acquiring endocardially or epicardially paced electrocardiograms
    77.
    发明授权
    Systems and methods for acquiring endocardially or epicardially paced electrocardiograms 失效
    获得心内膜或心外膜心电图的系统和方法

    公开(公告)号：US5954662A

    公开(公告)日：1999-09-21

    申请号：US955328

    申请日：1997-10-21

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

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

    IPC分类号： A61B1/005 ,  A61B5/042 ,  A61B5/0452 ,  A61B18/14 ,  A61N1/05 ,  G06F17/00 ,  G06F19/00 ,  A61B5/04 ,  A61N1/36

    CPC分类号： G06F19/3406 ,  A61B5/0422 ,  A61B5/04525 ,  A61B5/6855 ,  A61B5/6858 ,  A61N1/056 ,  G06F19/3487 ,  A61B1/0051 ,  A61B18/1492

    摘要： Systems and methods acquire electrocardiograms using a first electrode associated with a region of heart tissue and a second body surface electrode. An analog or digital processing element is coupled to the first and second electrodes for conditioning the first electrode to emit a pacing signal 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.

    摘要翻译： 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获取心电图。 模拟或数字处理元件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并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的匹配系数。 例如，医生可以使用匹配系数来帮助可能适合于消融的部位的位置。

    Multi-function electrode structures for electrically analyzing and heating body tissue
    78.
    发明授权
    Multi-function electrode structures for electrically analyzing and heating body tissue 失效
    用于电分析和加热身体组织的多功能电极结构

    公开(公告)号：US5836874A

    公开(公告)日：1998-11-17

    申请号：US629014

    申请日：1996-04-08

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

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

    IPC分类号： A61B18/14 ,  A61B5/04 ,  A61B17/39

    CPC分类号： A61B18/1492 ,  A61B2018/00214

    摘要： Systems and methods for heating body tissue place a multi-function structure having an exterior wall in contact with body tissue. The structure includes an array of electrically conducting electrode segments carried by the exterior wall. An electrically conductive network is coupled to the electrode segments, including at least one electrically conductive path individually coupled to each electrode segment. The systems and methods operate in a first mode during which the network is electrically conditioned to individually sense at each electrode segment local electrical events in tissue, such as electrical potentials, resistivity, or impedance. The systems and methods operate in a second mode during which the network is electrically conditioned, based at least in part upon local electrical events sensed by the electrode segments, to couple at least two electrode segments together to simultaneously transmit electrical energy to heat or ablate a region of body tissue.

    摘要翻译： 用于加热身体组织的系统和方法设置具有与身体组织接触的外壁的多功能结构。 该结构包括由外壁承载的导电电极段的阵列。 导电网络耦合到电极段，包括分别耦合到每个电极段的至少一个导电路径。 系统和方法以第一模式操作，在该模式期间，网络经电气调节以在每个电极段处单独感测组织中的局部电气事件，例如电势，电阻率或阻抗。 系统和方法在第二模式下操作，其中网络被电调节，至少部分地基于由电极段感测到的局部电气事件，以将至少两个电极段耦合在一起，以同时传输电能以加热或消融 身体组织区域。

    Systems and methods for visualizing interior regions of the body
    79.
    发明授权
    Systems and methods for visualizing interior regions of the body 失效
    用于可视化身体内部区域的系统和方法

    公开(公告)号：US5752518A

    公开(公告)日：1998-05-19

    申请号：US738822

    申请日：1996-10-28

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

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

    IPC分类号： A61B5/0408 ,  A61B1/00 ,  A61B5/00 ,  A61B5/0402 ,  A61B5/0478 ,  A61B5/0492 ,  A61B8/12 ,  A61B18/12 ,  A61B18/14 ,  A61M25/00 ,  A61B8/00

    CPC分类号： A61B8/12 ,  A61B18/1492 ,  A61B8/4461 ,  A61B2018/00208 ,  A61B2018/00214 ,  A61B2018/1861 ,  A61B5/0066 ,  A61B5/0084 ,  A61B5/7285 ,  A61B6/541 ,  A61B8/4488 ,  A61B8/543

    摘要： An imaging system for visualizing an interior body region comprises a catheter tube having a proximal end and a distal end adapted for introduction into the interior body region. The distal end carries an element that forms a three-dimensional support structure for contacting peripheral tissue in the interior body region. The three-dimensional support structure has an open interior. The distal end also carries an imaging element for visualizing the interior body region. The three-dimensional support structure peripherally surrounds the imaging element, thereby keeping peripheral tissue from contacting the imaging element. A steering mechanism on the proximal end of the catheter tube moves the imaging element within the open interior of the three-dimensional support structure. The system provides a stable platform through which accurate displays of interior body images can be created for viewing and analysis by the physician, so the appropriate treatment or therapy can be prescribed.

    摘要翻译： 用于可视化内部身体区域的成像系统包括具有适于引入到内部身体区域中的近端和远端的导管。 远端携带形成用于接触内部身体区域中的外周组织的三维支撑结构的元件。 三维支撑结构具有开放的内部结构。 远端还携带用于使内部身体区域可视化的成像元件。 三维支撑结构外围地围绕成像元件，从而保持外围组织不接触成像元件。 在导管管的近端上的转向机构将成像元件移动到三维支撑结构的开放内部。 该系统提供了一个稳定的平台，可以通过该平台创建内部身体图像的精确显示，以供医生观察和分析，因此可以规定适当的治疗或治疗。