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1.发明公开公开(公告)号：US20240350100A1
公开(公告)日：2024-10-24
申请号：US18682349
申请日：2022-08-24
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor： Hai Huang , Orit Brimer Limor , Eric Olson
CPC classification number: A61B5/7289 , A61B5/367
Abstract: A respiration signal can be generated within electroanatomical mapping system from the non-driven impedance signals received from a plurality of patch electrodes. The non-driven impedance signals are used to define a reference respiration signal. Each of a subset of the non-driven impedance signals can then be compared to the reference respiration signal to determine a polarity value; a scaling factor can also be computed that normalizes the non-driven impedance signals. The polarity values and scaling factors are applied to the non-driven impedance signals to generate weighted non-driven impedance signals, which can then be summed into a composite respiration signal. The composite respiration signal can, in turn, be subject to its own polarity value and scaling factor for use in real time (e.g., for gating data collection, respiration compensation, detection of irregular respiration, and the like).
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公开(公告)号：US12036029B2
公开(公告)日：2024-07-16
申请号：US17351357
申请日：2021-06-18
Applicant: Biosense Webster (Israel) Ltd.
Inventor： Lior Botzer , Meir Bar-Tal , Elad Nakar
CPC classification number: A61B5/367 , A61B5/316 , A61B5/339 , A61B5/352 , A61B5/6869 , A61B5/7239 , A61B5/743 , A61B5/287 , A61B5/6852 , A61B2505/05
Abstract: A method, including receiving a unipolar ECG signal from the location in the heart from a selected one electrode of a pair of electrodes, computing a local unipolar minimum derivative of the unipolar signal at a plurality of times of occurrences of the local unipolar minimum derivative, identifying candidate time of occurrences of the plurality of times of occurrences of the local unipolar minimum derivative as candidate annotations of the time of activation of the myocardium, extracting features for each of the candidate annotations, assigning a confidence level based on a feature value for each of the candidate annotations, eliminating candidate annotations that have a confidence level below a threshold and generating a local activation time map using the remaining candidate annotations.
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公开(公告)号：US20240221951A1
公开(公告)日：2024-07-04
申请号：US18572934
申请日：2022-06-28
Applicant: SUBSTRATE HD
Inventor： Gabriel VICTORINO CARDOSO , Thomas BOUDOU
Abstract: The inventions described herein relate to systems and methods directed to data-driven, continuous, and adaptable learning approaches to analyzing atrial tachycardia (AT) in a human body. The systems and methods may create an AT profile that automatically evolves such that a subsequent change in the AT is more accurately recognized and categorized.
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公开(公告)号：US12023168B2
公开(公告)日：2024-07-02
申请号：US17235986
申请日：2021-04-21
Applicant: BIOSENSE WEBSTER (ISRAEL) LTD.
Inventor： Yair Palti , Israel Zilberman , Assaf Govari , Vadim Gliner , Andres Claudio Altmann , Gili Attias
Abstract: A method includes receiving a plurality of data points including electrophysiological (EP) values measured at respective positions in at least a portion of an organ of a patient. Some of the EP values are classified as outlier values in accordance with a defined criterion. A visual representation of at least the portion of the organ is derived from the plurality of data points. The visual representation represents the EP values with respective colors, and visualizes less than all the outlier values, by performing one or both of (a) identifying outlier values that deviate from respective neighboring EP values by less than a defined deviation, and representing the outlier values using colors that match the neighboring EP values, and (b) setting for the visual representation a mapping, which maps the EP values to the colors and which excludes at least some of the outlier values.
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公开(公告)号：US12011280B2
公开(公告)日：2024-06-18
申请号：US17492933
申请日：2021-10-04
Applicant: Biosense Webster (Israel) Ltd.
Inventor： Assaf Govari , Andres Claudio Altmann , Vadim Gliner
CPC classification number: A61B5/367 , A61B5/256 , A61B5/283 , A61B5/339 , A61B5/7221 , A61B5/7225
Abstract: A system includes an interface and a processor. The interface is configured to receive an electrogram acquired in a heart of a patient. The processor is configured to (i) estimate a level of injury current present in the electrogram, and (ii) based on the estimated level of injury current, decide whether to use the electrogram in a subsequent analysis.
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Patent Agency Ranking
公开(公告)号：US20240180475A1
公开(公告)日：2024-06-06
申请号：US18500441
申请日：2023-11-02
Applicant: BIOSENSE WEBSTER (ISRAEL) LTD.
Inventor： Aharon Turgeman , Shiran Eliyahu , Benjamin Cohen , Natan Sharon Katz
Abstract: A system includes a display and a processor. The processor is configured to receive a cardiac anatomical surface, and to receive multiple electrophysiological (EP) data points comprising (i) respective locations on the cardiac anatomical surface and (ii) respective values of arrhythmia-indicative EP parameters at the locations, and apply respective criteria to the values of the EP data points. For each EP data point whose value meets a respective criterion, the processor is configured to graphically encode the EP data point to generate a point of interest (POI), superimpose POIs of at least two types of arrhythmia-indicative EP parameters on the anatomical surface as to generate a POI map reflecting surface locations likely of being arrhythmogenic, and visualize the POI map to a user, on the display.
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公开(公告)号：US20240164693A1
公开(公告)日：2024-05-23
申请号：US17991953
申请日：2022-11-22
Applicant: BIOSENSE WEBSTER (ISRAEL) LTD.
Inventor： Vadim Gliner , Assaf Govari
Abstract: A system includes a display and a processor. The processor is configured to (i) receive a cardiac electrophysiological (EP) velocity vectors map, (ii) compute a set of directed graphs from at least some of the velocity vectors, (iii) using the directed graphs, identify respective origin velocity vectors on the EP velocity vectors map, (iv) define one or more regions on the EP velocity vectors map, (v) determining based on origin velocity vectors in each of the one or more regions, whether the one or more regions contain a focal source of an arrhythmia, and (vi) visualize regions identified to contain a focal source on the EP map to a user, on the display.
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公开(公告)号：US11969254B2
公开(公告)日：2024-04-30
申请号：US17438023
申请日：2020-02-11
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor： Craig Markovitz , Jan O. Mangual-Soto , Chunlan Jiang , Louis-Philippe Richer , Cyrille Casset
Abstract: When generating anatomical maps (e.g., anatomical geometries and/or electrophysiology maps), it can be desirable to analyze whether or not a collected data point was collected from a region of interest. During an electrophysiology study, for example, an electroanatomical mapping system collects electrophysiology data points, each including an electrogram signal. By defining both a window of interest and a window of exclusion within the electrogram signal, the electroanatomical mapping system can analyze collected data points to determine whether or not they should be included in a map. In particular, the electroanatomical mapping system can compare the electrophysiology signal within the window of interest and the window of exclusion with respect to at least one signal parameter and add the data point to the map if the comparison satisfies at least one corresponding inclusion criterion. Applicable signal parameters include maximum peak-to-peak voltage, conduction velocity, and electrogram morphology.
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公开(公告)号：US20240122522A1
公开(公告)日：2024-04-18
申请号：US18569425
申请日：2022-06-29
Applicant: INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE) , UNIVERSITE CLAUDE BERNARD LYON 1 , CENTRE LEON BERARD , HOSPICES CIVILS DE LYON
Inventor： Cyril LAFON , Jade ROBERT , Francis BESSIERE , Elodie CAO
CPC classification number: A61B5/367 , A61B5/346 , A61B5/7257 , A61B5/743 , A61B8/0883 , A61B8/485
Abstract: This disclosure relates to a method for characterizing activation of an anatomical tissue subjected to contraction, aiming at providing a characterization of the contraction itself in a quantitative manner which is accurate and repeatable. The invention proposes an analysis of the activation of the anatomical structure based on instantaneous spectral contents of an activity signal from which an identification of peaks of dominant frequency characterizing the contraction throughout the anatomical tissue results. An evolution of a spatial distribution of peaks of dominant frequency throughout the anatomical tissue over time can also be monitored. The disclosure finds particular advantageous applications in provision of a mapping of activation of the anatomical tissue in order to identify a possible dysfunction, such as an arrhythmia in a cardiac tissue.
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10.发明授权公开(公告)号：US11950917B2
公开(公告)日：2024-04-09
申请号：US18146612
申请日：2022-12-27
Applicant: St. Jude Medical, Cardiology Division, Inc.
Inventor： Mark Hagfors , Michael A. Quinn
Abstract: An animated electrophysiology map is generated from a plurality of data points, each including measured electrophysiology information, location information, and timing information. The electrophysiology and location information can be used to generate the electrophysiology map, such as a local activation time, peak-to-peak voltage, or fractionation map. Animated timing markers can be superimposed upon the electrophysiology map using the electrophysiology, location, and timing information. For example a series of frames can be displayed sequentially, each including a static image of the electrophysiology map at a point in time and timing markers corresponding to the state or position of an activation wavefront at the point in time superimposed thereon. The visibility or opacity of the timing markers can be adjusted from frame to frame, dependent upon a distance between the timing marker and the activation wavefront, to give the illusion that the timing markers are moving along the electrophysiology map.
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