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    METHOD AND SYSTEM FOR DETECTING CONTACT STATUS USING ELECTRODE
    3.
    发明公开
    METHOD AND SYSTEM FOR DETECTING CONTACT STATUS USING ELECTRODE 审中-实审

    公开(公告)号：EP4400051A1

    公开(公告)日：2024-07-17

    申请号：EP23214048.3

    申请日：2023-12-04

    申请人： St. Jude Medical, Cardiology Division, Inc.

    发明人： VOTH, Eric J. ,  SCHWEITZER, Jeffrey A.

    IPC分类号： A61B5/287 ,  A61B5/367 ,  A61B5/00

    CPC分类号： A61B5/287 ,  A61B5/367 ,  A61B5/6885

    摘要： A method of determining contact status of electrodes includes applying drive signals between pairs of electrodes, measuring a bipolar electrode complex impedance (BECI) value generated in response to the drive signals over a collection period, and determining a baseline BECI value representing a minimum value measured during the collection period. The method further includes determining contact status of the electrode by applying drive signals between pairs of electrodes over a given interval, measuring a BECI value generated in response to the drive signals, measuring a peak-to-peak value associated with the BECI values measured over the given interval, and determining contact status based on a combination of the baseline BECI value, the measured BECI value, and the peak-to-peak value associated with the measured BECI values.

    IDENTIFYING FOCAL SOURCES OF ARRHYTHMIA WITH MULTI ELECTRODE CATHETER
    5.
    发明公开
    IDENTIFYING FOCAL SOURCES OF ARRHYTHMIA WITH MULTI ELECTRODE CATHETER 审中-公开

    公开(公告)号：EP4385414A1

    公开(公告)日：2024-06-19

    申请号：EP23216505.0

    申请日：2023-12-14

    申请人： Biosense Webster (Israel) Ltd.

    发明人： GOVARI, Assaf

    IPC分类号： A61B5/367

    CPC分类号： A61B5/367

    摘要： A system for computing an electro-anatomical (EA) map of signals from tissue inside a chamber of a patient's includes a processor and a display. The processor receives electro-physiological (EP) signals from a plurality of electrodes on a distal end assembly of a catheter placed in the chamber, selects a contiguous sub-group of the plurality of electrodes and applies a consistency test to the EP signals acquired by the contiguous sub-group to determine if the EP signals from the sub-group of the electrodes display a common cycle length. When the consistency test is successful, the processor identifies a region in the chamber from which the EP signals have been acquired. The display renders an electro-anatomical (EA) map of the chamber and provides indicating on the rendered display of the region.

    MULTI-DIMENSIONAL ACQUISITION OF BIPOLAR SIGNALS FROM A CATHETER
    7.
    发明公开
    MULTI-DIMENSIONAL ACQUISITION OF BIPOLAR SIGNALS FROM A CATHETER 审中-公开

    公开(公告)号：EP4427666A2

    公开(公告)日：2024-09-11

    申请号：EP24191414.2

    申请日：2020-12-11

    申请人： Biosense Webster (Israel) Ltd.

    发明人： GLINER, Vadim ,  GOVARI, Assaf

    IPC分类号： A61B5/00

    CPC分类号： A61B5/287 ,  A61B5/367 ,  A61B5/6858 ,  A61B5/6859 ,  A61B5/7278 ,  A61B2562/04320130101

    摘要： Medical apparatus includes a probe with a basket assembly at its distal end, including a plurality of resilient spines with multiple electrodes arrayed along a length of each of the spines. Processing circuitry is configured to acquire a first bipolar electrical signal from the tissue between first and second electrodes at first and second locations along a first spine of the basket assembly, and to acquire a second bipolar electrical signal from the tissue between the first electrode and a third electrode in a third location on a second spine of the basket assembly, and to interpolate, based on the first and second bipolar electrical signals, a vectorial electrical property of the tissue along an axis that passes through the first location and between the second and third locations.