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    GLOBAL HISTOGRAM OF LOCAL CYCLE LENGTH
    24.
    发明申请
    GLOBAL HISTOGRAM OF LOCAL CYCLE LENGTH 有权

    公开(公告)号：US20220101990A1

    公开(公告)日：2022-03-31

    申请号：US17488963

    申请日：2021-09-29

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Nathan H. Bennett ,  Brian Stewart ,  Nicholas Herlambang ,  Suzhou Li

    IPC: G16H40/63 ,  A61B5/367 ,  A61B5/349

    Abstract: At least some aspects of the present disclosure is directed to a system for processing cardiac information. The system comprises a processing unit configured to: receive an activation waveform comprising a set of activation waveform data of a plurality of signal sections collected at a plurality of locations; receive a range of window size. The processing unit is further configured to: for each signal section of the plurality of signal sections, determine a set of confidence values, each confidence value corresponding to a window size, by iterating through a plurality of window sizes in the range of window size. The processing unit is further configured to determine one of a plurality of local cycle lengths for the each of the plurality of signal sections based on the selected window size and generate a local cycle length histogram based on the plurality of local cycle lengths.

    ELECTROPHYSIOLOGY SYSTEM AND METHOD FOR ASSESSING MICRO-REENTRY SITES
    25.
    发明申请
    ELECTROPHYSIOLOGY SYSTEM AND METHOD FOR ASSESSING MICRO-REENTRY SITES 有权

    公开(公告)号：US20220095987A1

    公开(公告)日：2022-03-31

    申请号：US17489044

    申请日：2021-09-29

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Nathan H. Bennett ,  Brian Stewart

    IPC: A61B5/367 ,  A61B5/287 ,  A61B5/339 ,  A61B5/00

    Abstract: At least some embodiments of the present disclosure is directed to a system for processing cardiac information. The system including a processing unit is configured to: receive one or more cardiac electrical signals from one or more electrodes disposed within a cardiac chamber, wherein the cardiac electrical signals are acquired over a cardiac beat; receive an indication of a measurement location corresponding to each of the cardiac electrical signals; analyze the one or more cardiac electrical signals to calculate a plurality of duty cycle values, the calculated duty cycle values corresponding to a plurality of pre-selected cycle length windows; and calculate an average duty cycle of the calculated duty cycle values over the plurality of pre-selected cycle length windows.

    Systems and methods for mapping electrical activity in the heart
    27.
    发明授权
    Systems and methods for mapping electrical activity in the heart 有权

    公开(公告)号：US11147496B2

    公开(公告)日：2021-10-19

    申请号：US16249162

    申请日：2019-01-16

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Alireza Ghodrati ,  Nathan H. Bennett ,  Brian Stewart

    IPC: A61B5/04 ,  A61B5/042 ,  A61B5/06 ,  A61B5/00 ,  A61B5/044 ,  A61B5/341 ,  A61B5/287 ,  A61B5/316 ,  A61B5/339

    Abstract: A system including a catheter including multiple, spatially distributed electrodes configured to measure electrical signals of a heart, a system configured to determine a position of the electrodes at multiple, different catheter positions in the heart, and a processing unit for mapping electrical activity in the heart. The processing unit is configured to receive the measured electrical signals from each position of the multiple, different catheter positions and determine whether the measured electrical signals at the position are organized. If the measured electrical signals at the position are organized, the processing unit is configured to determine at least one of velocity vectors, cycle length, and degree of organization at the position from the measured electrical signals.

    Cardiac mapping using a 3D grid
    28.
    发明授权
    Cardiac mapping using a 3D grid 有权

    公开(公告)号：US11013447B2

    公开(公告)日：2021-05-25

    申请号：US16412058

    申请日：2019-05-14

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Doron Harlev ,  Daniel Klebanov ,  Alpar Csendes ,  Brian Stewart ,  Nathan H. Bennett

    IPC: A61B5/339 ,  A61B5/00 ,  A61B5/287 ,  A61B5/316 ,  A61B5/349

    Abstract: A system for facilitating display of cardiac mapping information includes a catheter having one or more electrodes that measure electrical signals in the heart, and a processing unit. The processing unit receives the electrical signals from the catheter and receives an indication of a measurement location corresponding to each signal. The processing unit extracts a set of features from the signals, where each feature includes a value corresponding to a metric. A three-dimensional grid is constructed, wherein each node of the grid corresponds to a physical point in three-dimensional space. The system identifies a set of electrical signals in a neighborhood associated with a node; determines, based on the set of features extracted from the set of electrical signals, a node value; associates the node value with the node; and facilitates presentation of a map corresponding to a cardiac surface based on the node value.

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