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    AUGMENTED SIGNAL VECTOR ANALYSIS TO SUPPRESS GLOBAL ACTIVATION DURING ELECTROPHYSIOLOGY MAPPING
    21.
    发明申请
    AUGMENTED SIGNAL VECTOR ANALYSIS TO SUPPRESS GLOBAL ACTIVATION DURING ELECTROPHYSIOLOGY MAPPING 有权
    增强信号矢量分析在电生理映射期间抑制全球激活

    公开(公告)号：US20130345577A1

    公开(公告)日：2013-12-26

    申请号：US13923012

    申请日：2013-06-20

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Pramodsingh Hirasingh Thakur ,  Barun Maskara ,  Allan C. Shuros ,  Sunipa Saha ,  Shibaji Shome

    IPC: A61B5/042

    CPC classification number: A61B5/0422 ,  A61B5/046 ,  A61B5/6859 ,  A61B18/1492

    Abstract: Electrical activity propagation along an electrode array within a cardiac chamber is reconstructed. Signals are sampled from the electrode array including signals from a channel of interest. An N-dimensional signal vector is then constructed using signals from N neighboring channels referenced to the channel of interest. A change in the N-dimensional signal vector over time is then determined and compared to a predetermined threshold to establish whether local activation has occurred on the channel of interest.

    Abstract translation: 重建沿心室内电极阵列的电活动传播。 从包括来自感兴趣信道的信号的电极阵列采样信号。 然后使用来自参考感兴趣信道的N个相邻信道的信号来构造N维信号向量。 然后确定N维信号矢量随时间的变化，并将其与预定阈值进行比较，以确定在感兴趣信道上是否发生了局部激活。

    ESOPHAGUS CATHETER FOR IRREVERSIBLE ELECTROPORATION
    22.
    发明申请
    ESOPHAGUS CATHETER FOR IRREVERSIBLE ELECTROPORATION 有权

    公开(公告)号：US20220022953A1

    公开(公告)日：2022-01-27

    申请号：US17382967

    申请日：2021-07-22

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Allan C. Shuros ,  Brendan E. Koop

    IPC: A61B18/14

    Abstract: At least some embodiments of the present disclosure are directed to an electroporation ablation device having a first catheter and a second catheter. The first catheter comprises one or more first electrodes and has a first surface area. The second catheter comprises one or more second electrodes and has a second surface area. When the electroporation ablation device is in operation for ablating a target tissue, the first catheter is configured to be disposed in an extracardiac location and anatomically proximate to the target tissue, the second catheter is configured to be disposed at an intracardiac location proximate to the target tissue, and the electroporation ablation device is configured to generate an electric field between the one or more first electrodes and the one or more second electrodes with electric field strength sufficient to ablate the target tissue via irreversible electroporation.

    Medical system for mapping cardiac tissue
    23.
    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.

    DYNAMIC REPOLARIZATION SUBSTRATE MAPPING
    24.
    发明申请
    DYNAMIC REPOLARIZATION SUBSTRATE MAPPING 审中-公开

    公开(公告)号：US20180368714A1

    公开(公告)日：2018-12-27

    申请号：US16013809

    申请日：2018-06-20

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Sarah R. Gutbrod ,  Jacob I. Laughner ,  Allan C. Shuros ,  Matthew S. Sulkin

    IPC: A61B5/044 ,  A61B5/042 ,  A61B5/00 ,  G16H40/63

    Abstract: Methods and systems for cardiac mapping are disclosed. An example system includes a catheter shaft with one or more electrodes coupled to a distal end of the catheter shaft. Electrodes sense electrical signals at anatomical locations within a heart. A processor coupled to the catheter shaft acquires electrogram signals of the heart using the electrodes. Each electrogram signal relates to three-dimensional positional data corresponding to the anatomical locations. The processor also store the electrogram signals of the heart corresponding to electrical activities sensed at corresponding anatomical locations, calculate an activation recovery interval associated with each of the corresponding anatomical locations, determine spatial gradient data of the activation recovery interval based on a distance between at least two neighboring anatomical locations. The system also includes a display device to display a three-dimensional graphical representation of the spatial gradient data between the at least two neighboring anatomical.

    DYNAMIC REPOLARIZATION SUBSTRATE MAPPING
    25.
    发明申请
    DYNAMIC REPOLARIZATION SUBSTRATE MAPPING 审中-公开

    公开(公告)号：US20180368713A1

    公开(公告)日：2018-12-27

    申请号：US16013146

    申请日：2018-06-20

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Sarah R. Gutbrod ,  Jacob I. Laughner ,  Allan C. Shuros ,  Matthew S. Sulkin

    IPC: A61B5/044 ,  A61B5/042 ,  A61B5/0452 ,  A61B5/0432 ,  A61B5/00

    Abstract: Methods and systems for cardiac mapping are disclosed. An example system includes a catheter shaft with one or more electrodes coupled to a distal end of the catheter shaft. Electrodes sense electrical signals at anatomical locations within a heart. A processor coupled to the catheter shaft acquires electrogram signals of the heart using the electrodes. Each electrogram signal relates to three-dimensional positional data corresponding to the anatomical locations. The processor also store the electrogram signals of the heart corresponding to electrical activities sensed at corresponding anatomical locations, calculate an activation recovery interval associated with each of the corresponding anatomical locations, determine spatial gradient data of the activation recovery interval based on a distance between at least two neighboring anatomical locations. The system also includes a display device to display a three-dimensional graphical representation of the spatial gradient data between the at least two neighboring anatomical.

    STEAM POP PREVENTION USING LOCAL IMPEDANCE
    26.
    发明申请
    STEAM POP PREVENTION USING LOCAL IMPEDANCE 审中-公开

    公开(公告)号：US20180338793A1

    公开(公告)日：2018-11-29

    申请号：US15986505

    申请日：2018-05-22

    Applicant: Boston Scientific Scimed Inc.

    Inventor： Matthew S. Sulkin ,  Jacob I. Laughner ,  Allan C. Shuros ,  Jason J. Hamann

    IPC: A61B18/14 ,  A61B18/24

    Abstract: Embodiments of the present invention facilitate real-time ablation lesion characteristic analysis. In an embodiment, an electrophysiology system comprises a catheter, a signal generator and a mapping processor. The catheter includes a flexible catheter body having a distal portion and a plurality of electrodes disposed on the distal portion. The signal generator is configured to generate an electrical signal by driving one or more currents between a first set of the plurality of electrodes, wherein a second set of the plurality of electrodes is configured to obtain an impedance measurement based on the electrical signal. Furthermore, the mapping processor configured to: receive the impedance measurement from the second set of electrodes; determine at least one impedance metric; and determine, based on the at least one impedance metric, a likelihood of an occurrence of a steam pop.

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