Tracking system using field mapping
    7.
    发明授权
    Tracking system using field mapping 有权
    跟踪系统使用字段映射

    公开(公告)号:US08167876B2

    公开(公告)日:2012-05-01

    申请号:US12258688

    申请日:2008-10-27

    IPC分类号: A61B18/18

    摘要: In some aspects, a method includes (i) causing current to flow among multiple sets of current injecting electrodes to generate a field in an organ, (ii) obtaining the positions of one or more measuring electrodes used for measuring the field generated by the current injecting electrodes, (iii) in response to the current flow, measuring the field at multiple locations in the organ using the one or more measuring electrodes, (iv) modeling the field using the measurements of the field from the one or more measuring electrodes and the positions of the one or more measuring electrodes, and (v) determining expected signal measurements of the field at additional locations within the organ using the model of the field.

    摘要翻译: 在一些方面,一种方法包括(i)使电流在多组电流注入电极之间流动以在器官中产生场,(ii)获得用于测量由电流产生的场的一个或多个测量电极的位置 注射电极,(iii)响应于电流,使用一个或多个测量电极测量器官中多个位置处的场,(iv)使用来自一个或多个测量电极的场的测量来对场进行建模;以及 所述一个或多个测量电极的位置,以及(v)使用所述场的模型来确定所述器官内附近位置处的所述场的预期信号测量值。

    CATHETER TRACKING AND ENDOCARDIUM REPRESENTATION GENERATION
    8.
    发明申请
    CATHETER TRACKING AND ENDOCARDIUM REPRESENTATION GENERATION 有权
    导管跟踪和内源性代谢产生

    公开(公告)号:US20100324414A1

    公开(公告)日:2010-12-23

    申请号:US12871336

    申请日:2010-08-30

    IPC分类号: A61B5/05

    摘要: Methods and systems are disclosed for determining information about a position of an object within a distribution of materials having different complex conductivities. The method includes: (i) causing current to flow in the distribution; (ii) measuring an electrical signal at each of multiple locations in the distribution of materials in response to the current flow; (iii) providing spatial information about the distribution of materials with respect to a first reference frame, the spatial information indicative of regions of different complex conductivity in the distribution of materials; and (iv) determining the position of the object with respect to the spatial information about the distribution of materials based on measured electrical signals and the spatial information. In certain embodiments, the object is a catheter inserted into a patients heart cavity for cardiac mapping.

    摘要翻译: 公开了用于确定关于物体在具有不同复杂电导率的材料的分布内的位置的信息的方法和系统。 该方法包括:(i)使电流在分布中流动; (ii)响应于当前流量在材料分布中的多个位置的每个位置处测量电信号; (iii)提供关于第一参考帧的材料分布的空间信息,所述空间信息指示材料分布中不同复电导率的区域; 以及(iv)基于测量的电信号和空间信息来确定关于材料分布的空间信息的对象的位置。 在某些实施例中,该物体是插入患者心脏腔以用于心脏图谱的导管。

    Cardiac mapping with catheter shape information
    10.
    发明授权
    Cardiac mapping with catheter shape information 有权
    心导图形成导管形状信息

    公开(公告)号:US08948853B2

    公开(公告)日:2015-02-03

    申请号:US13044982

    申请日:2011-03-10

    IPC分类号: A61B5/02 A61B5/042

    摘要: A non-contact cardiac mapping method is disclosed that includes: (i) inserting a catheter into a heart cavity having an endocardium surface, the catheter including multiple, spatially distributed electrodes; (ii) measuring signals at the catheter electrodes in response to electrical activity in the heart cavity with the catheter spaced from the endocardium surface; and (iii) determining physiological information at multiple locations of the endocardium surface based on the measured signals and positions of the electrodes with respect to the endocardium surface. Related systems and computer programs are also disclosed.

    摘要翻译: 公开了一种非接触心脏测绘方法,其包括:(i)将导管插入具有心内膜表面的心腔中,所述导管包括多个空间分布的电极; (ii)响应于心脏腔中的电活动而测量导管电极处的信号,其中导管与心内膜表面间隔开; 以及(iii)基于测量的信号和电极相对于心内膜表面的位置来确定心内膜表面的多个位置处的生理信息。 还公开了相关系统和计算机程序。