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    Force sensing catheter with impedance-guided orientation
    11.
    发明授权
    Force sensing catheter with impedance-guided orientation 有权

    公开(公告)号：US10595745B2

    公开(公告)日：2020-03-24

    申请号：US15418098

    申请日：2017-01-27

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Mary M. Byron ,  Jacob I. Laughner ,  Shibaji Shome

    IPC: A61B5/00 ,  A61B5/042 ,  A61B5/06 ,  A61B90/00 ,  A61B18/14 ,  A61B18/00

    Abstract: A catheter adapted to determine a contact force, the catheter including a proximal segment, a distal segment, and an elastic segment extending from the proximal segment to the distal segment. The distal segment includes a plurality of tip electrodes including at least three radial electrodes disposed about a circumference of the distal segment. The radial electrodes are configured to output electrical signals indicative of a contact vector of the contact force. The elastic segment includes a force sensing device configured to output an electrical signal indicative of a magnitude of an axial component of the contact force, wherein the contact force is determined by scaling the magnitude of the axial component of the contact force by the contact vector.

    Medical system for mapping cardiac tissue
    12.
    发明授权
    Medical system for mapping cardiac tissue 有权

    公开(公告)号：US10264985B2

    公开(公告)日：2019-04-23

    申请号：US16148904

    申请日：2018-10-01

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Jacob I. Laughner ,  Carlos Alberto Ricci ,  Vladimir V. Kovtun ,  Shibaji Shome ,  Pramodsingh H. Thakur ,  Allan C. Shuros ,  Kevin J. Stalsberg

    IPC: A61B5/04 ,  A61B5/0245 ,  A61B5/00 ,  A61B5/046 ,  A61B5/042

    Abstract: Medical devices and methods for making and using medical devices are disclosed. An example system for mapping the electrical activity of the heart includes a catheter shaft. The catheter shaft includes a plurality of electrodes including a first and a second electrode. The system also includes a processor. The processor is capable of collecting a first signal corresponding to a first electrode over a time period and generating a first time-frequency distribution corresponding to the first signal. The first time-frequency distribution includes a first dominant frequency value representation occurring at one or more first base frequencies. The processor is also capable of applying a filter to the first signal or derivatives thereof to determine whether the first dominant frequency value representation includes a single first dominant frequency value at a first base frequency or two or more first dominant frequency values at two or more base frequencies.

    SYSTEM FOR IDENTIFYING ROTOR PROPAGATION VECTORS
    20.
    发明申请
    SYSTEM FOR IDENTIFYING ROTOR PROPAGATION VECTORS 有权
    用于识别转子传播矢量的系统

    公开(公告)号：US20140336518A1

    公开(公告)日：2014-11-13

    申请号：US14272292

    申请日：2014-05-07

    Applicant: BOSTON SCIENTIFIC SCIMED INC.

    Inventor： Allan C. Shuros ,  Pramodsingh H. Thakur ,  Shibaji Shome ,  Barun Maskara ,  Shantha Arcot-Krishnamurthy ,  Sunipa Saha ,  Jacob Laughner

    IPC: A61B5/04

    CPC classification number: A61B5/04012 ,  A61B5/0422 ,  A61B5/046 ,  A61B5/6858 ,  A61B5/7246

    Abstract: A method and system for mapping an anatomical structure includes sensing activation signals of intrinsic physiological activity with a plurality of mapping electrodes disposed in or near the anatomical structure. The activation signals are used to determine a dominant frequency for each electrode from which a wavefront vector for each electrode is determined based on a difference between the dominant frequency at a first electrode location and the dominant frequency at neighboring electrodes. An anatomical map is generated based on the determined wavefront vectors.

    Abstract translation: 用于映射解剖结构的方法和系统包括用设置在解剖结构中或附近的多个映射电极来感测内在生理活动的激活信号。 激活信号用于确定每个电极的主频率，根据第一电极位置处的主频与相邻电极处的主频率之间的差，确定每个电极的波前矢量。 基于所确定的波前矢量生成解剖图。

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