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    METHOD AND APPARATUS FOR BEAT ACQUISITION DURING TEMPLATE GENERATION IN A MEDICAL DEVICE HAVING DUAL SENSING VECTORS
    44.
    发明申请
    METHOD AND APPARATUS FOR BEAT ACQUISITION DURING TEMPLATE GENERATION IN A MEDICAL DEVICE HAVING DUAL SENSING VECTORS 审中-公开
    在具有双感测矢量的医疗设备中模板生成过程中获取BEAT的方法和装置

    公开(公告)号：US20160213941A1

    公开(公告)日：2016-07-28

    申请号：US14604260

    申请日：2015-01-23

    Applicant: Medtronic, Inc.

    Inventor： Xusheng Zhang

    IPC: A61N1/39

    CPC classification number: A61N1/3987 ,  A61B5/04525 ,  A61B5/686 ,  A61B5/6869 ,  A61B5/7221 ,  A61B5/7264 ,  A61N1/3622 ,  A61N1/3624 ,  A61N1/36507 ,  A61N1/3702 ,  A61N1/3956

    Abstract: A method and medical device for generating a template that includes sensing a cardiac signal from a plurality of electrodes, determining a plurality of beats in response to the sensed cardiac signal, determining whether to store a beat of the plurality of beats in a subgroup of a plurality of subgroups for storing beats, determining whether a number of beats stored in one of the plurality of subgroups exceeds a subgroup threshold, and generating a template in response to beats stored in the one of the plurality of subgroups that exceeds the subgroup threshold.

    Abstract translation: 一种用于产生模板的方法和医疗装置，包括感测来自多个电极的心脏信号，响应于所感测到的心脏信号确定多个搏动，确定是否将多个搏动的搏动存储在 用于存储节拍的多个子组，确定存储在所述多个子组中的一个子组中的节拍数是否超过子组阈值，以及响应于存储在所述多个子组中的超过所述子组阈值的所述一个组中的节拍而生成模板。

    METHOD AND APPARATUS FOR DETECTING AND DISCRIMINATING TACHYCARDIA IN A SUBCUTANEOUSLY IMPLANTABLE CARDIAC DEVICE
    45.
    发明申请
    METHOD AND APPARATUS FOR DETECTING AND DISCRIMINATING TACHYCARDIA IN A SUBCUTANEOUSLY IMPLANTABLE CARDIAC DEVICE 有权
    用于检测和鉴别一种可持续心脏移植手术中的TACHYCARDIA的方法和装置

    公开(公告)号：US20160022999A1

    公开(公告)日：2016-01-28

    申请号：US14876129

    申请日：2015-10-06

    Applicant: Medtronic, Inc.

    Inventor： Xusheng Zhang ,  Robert W. Stadler ,  Jeffrey M. Gillberg

    IPC: A61N1/365 ,  A61N1/362

    CPC classification number: A61N1/36514 ,  A61B5/02405 ,  A61B5/04525 ,  A61B5/7203 ,  A61N1/3621 ,  A61N1/3962

    Abstract: A medical device and associated method for discriminating cardiac events includes sensing a cardiac signal spatially located across approximately a full duration of a predetermined sensing window. A match score is determined corresponding to the sensed cardiac signal. A beat feature of multiple beat features across less than the full duration of the sensing window is determined, the beat feature being selected from the multiple beat features in response to the match score. Cardiac event evidence is accumulated in response to the match score and the determined beat feature, and cardiac events are discriminated in response to the accumulated cardiac evidence.

    Abstract translation: 用于鉴别心脏事件的医疗装置和相关联的方法包括感测在预定感测窗口的大约整个持续时间上空间定位的心脏信号。 根据感测的心脏信号确定匹配分数。 确定在小于感测窗口的整个持续时间的多个拍子特征的拍子特征，响应于匹配分数，从多拍特征中选择拍子特征。 响应于匹配得分和确定的搏动特征累积心脏事件证据，并且响应于累积的心脏证据来区分心脏事件。

    METHOD AND APPARATUS FOR DISCRIMINATING TACHYCARDIA EVENTS IN A MEDICAL DEVICE
    46.
    发明申请
    METHOD AND APPARATUS FOR DISCRIMINATING TACHYCARDIA EVENTS IN A MEDICAL DEVICE 审中-公开
    用于在医疗设备中鉴别TACHYCARDIA事件的方法和装置

    公开(公告)号：US20150273228A1

    公开(公告)日：2015-10-01

    申请号：US14242437

    申请日：2014-04-01

    Applicant: Medtronic, Inc.

    Inventor： Xusheng Zhang ,  Robert W. Stadler

    IPC: A61N1/39

    CPC classification number: A61N1/3925

    Abstract: A method and medical for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector, determining, during first processing of a first interval sensed along the first sensing vector during a predetermined sensing window and a second interval sensed along the second sensing vector during the predetermined sensing window, whether one or both of the first interval and the second interval is within one of a ventricular tachycardia shock zone and a ventricular fibrillation shock zone, identifying the cardiac event as a shockable event in response to one or both of the first interval and the second interval determined as being within the ventricular tachycardia shock zone, identifying the cardiac event as a shockable event in response to both of the first interval and the second interval determined as being within the ventricular fibrillation shock zone, and determining whether to confirm the cardiac event being identified as a shockable event in response to the identifying.

    Abstract translation: 一种用于检测心脏事件的方法和医疗装置，包括感测来自多个电极的心脏信号，所述多个电极形成第一感测向量和第二感测向量，在沿着第一感测向量感测的第一间隔的第一处理期间， 在预定感测窗口期间沿着第二感测矢量感测的预定感测窗口和第二间隔期间，第一间隔和第二间隔中的一个或两个是否在室性心动过速休克区域和心室颤动休克区域之一内，识别 心脏事件作为响应于确定为在室性心动过速休克区内的第一间隔和第二间隔中的一个或两个的可震荡事件，将心脏事件识别为响应于第一间隔和第二时间间隔的可震荡事件 间隔确定为在心室颤动休克区内，并确定w 另外确定心脏事件被识别为响应识别的可震荡事件。

    SYSTEM AND METHOD FOR AVOIDING UNDERSENSING OF VENTRICULAR FIBRILLATION
    47.
    发明申请
    SYSTEM AND METHOD FOR AVOIDING UNDERSENSING OF VENTRICULAR FIBRILLATION 有权
    用于避免心脏纤维化不全的系统和方法

    公开(公告)号：US20140276160A1

    公开(公告)日：2014-09-18

    申请号：US13833171

    申请日：2013-03-15

    Applicant: MEDTRONIC, INC.

    Inventor： Xusheng Zhang ,  Mark L. Brown ,  Paul J. DeGroot ,  Saul E. Greenhut ,  Troy E. Jackson

    IPC: A61B5/0464 ,  A61B5/046 ,  A61N1/39

    CPC classification number: A61B5/0464 ,  A61B5/04525 ,  A61B5/046 ,  A61B5/6869 ,  A61B5/7264 ,  A61N1/3621 ,  A61N1/395 ,  A61N1/3956

    Abstract: A medical device and associated method for detecting and treating tachyarrhythmias acquires a cardiac signal using electrodes coupled to a sensing module. Cardiac events are sensed from the cardiac signal and a processing module computes a first morphology metric for each sensed cardiac event occurring during a time segment of the cardiac signal. The first morphology metrics corresponding to an event originating in a ventricular chamber are counted. The first processing module computes a second morphology metric for the time segment of the cardiac signal in response to the count of the first morphology metrics meeting a threshold number of events. The time segment is classified as a shockable segment in response to the second morphology metric meeting a detection criterion.

    Abstract translation: 用于检测和治疗快速性心律失常的医疗装置和相关联的方法使用耦合到感测模块的电极获取心脏信号。 从心脏信号感测心脏事件，并且处理模块计算在心脏信号的时间段期间发生的每个感测到的心脏事件的第一形态度量。 计算对应于起始于心室的事件的第一形态学指标。 第一处理模块响应于满足阈值数量事件的第一形态学量度的计数，计算心脏信号的时间段的第二形态度量。 响应于符合检测标准的第二形态度量，该时间段被分类为可震击段。

    HEART-SOUNDS BASED ADAPTIVE CARDIAC RESYNCHRONIZATION THERAPY TIMING PARAMETER OPTIMIZATION SYSTEM
    48.
    发明申请
    HEART-SOUNDS BASED ADAPTIVE CARDIAC RESYNCHRONIZATION THERAPY TIMING PARAMETER OPTIMIZATION SYSTEM 有权
    基于心脏的自适应心脏再生治疗时间参数优化系统

    公开(公告)号：US20130268017A1

    公开(公告)日：2013-10-10

    申请号：US13856152

    申请日：2013-04-03

    Applicant: MEDTRONIC, INC.

    Inventor： Xusheng Zhang ,  Paul J. DeGroot ,  Jeffrey M. Gillberg ,  Thomas J. Mullen ,  Aleksandre T. Sambelashvili

    IPC: A61N1/365

    CPC classification number: A61N1/36585 ,  A61N1/3627 ,  A61N1/3682 ,  A61N1/3684

    Abstract: A medical device and associated method for controlling a cardiac pacing therapy sense a first cardiac signal including events corresponding to cardiac electrical events and a second cardiac signal including events corresponding to cardiac hemodynamic events. A processor is enabled to measure a cardiac conduction time interval using the first cardiac signal and control a signal generator to deliver a pacing therapy. A pacing control parameter is adjusted to a plurality of settings during the pacing therapy delivery. A hemodynamic parameter value is measured from the second cardiac signal during application of each of the control parameter settings. The processor identifies an optimal setting from the plurality of settings and solves for a patient-specific equation defining the pacing control parameter as a function of the cardiac conduction time interval.

    Abstract translation: 用于控制心脏起搏治疗的医疗装置和相关联的方法感测包括对应于心脏电气事件的事件的第一心脏信号和包括对应于心脏血流动力学事件的事件的第二心脏信号。 处理器能够使用第一心脏信号测量心脏传导时间间隔，并控制信号发生器以递送起搏治疗。 在起搏治疗递送期间，起搏控制参数被调整为多个设置。 在应用每个控制参数设置期间，从第二心脏信号测量血液动力学参数值。 处理器从多个设置中识别最佳设置，并且针对定义作为心脏传导时间间隔的函数的起搏控制参数的患者特定方程进行求解。

    Medical device and method for detecting electrical signal noise
    49.
    发明授权
    Medical device and method for detecting electrical signal noise 有权

    公开(公告)号：US12295736B2

    公开(公告)日：2025-05-13

    申请号：US18193457

    申请日：2023-03-30

    Applicant: Medtronic, Inc.

    Inventor： Xusheng Zhang ,  Saul E. Greenhut ,  Yuanzhen Liu

    IPC: A61B5/00 ,  A61B5/29 ,  A61B5/363

    Abstract: A medical device is configured to sense an electrical signal and determine that signal to noise criteria are met based on electrical signal segments stored in response to sensed electrophysiological events. The medical device is configured to determine an increased gain signal segment from one of the stored electrical signal segments in response to determining that the signal to noise criteria are met. The medical device determines a noise metric from the increased gain signal segment. The stored electrical signal segment associated with the increased gain signal segment may be classified as a noise segment in response to the noise metric meeting noise detection criteria.

    System and method for sensing and detection in an extra-cardiovascular implantable cardioverter defibrillator
    50.
    发明授权
    System and method for sensing and detection in an extra-cardiovascular implantable cardioverter defibrillator 有权

    公开(公告)号：US12274889B2

    公开(公告)日：2025-04-15

    申请号：US17812974

    申请日：2022-07-15

    Applicant: Medtronic, Inc.

    Inventor： Xusheng Zhang ,  Jian Cao ,  Saul E. Greenhut ,  Robert W. Stadler

    IPC: A61N1/39 ,  A61B5/29 ,  A61B5/352 ,  A61B5/00 ,  A61B5/363

    Abstract: An extra-cardiovascular implantable cardioverter defibrillator senses R-waves from a first cardiac electrical signal by a first sensing channel and stores a time segment of a second cardiac electrical signal in response to each sensed R-wave. The ICD determines intervals between successively sensed R-waves and, in response to at least a predetermined number of the intervals being less than a tachyarrhythmia detection interval, analyzes at least a portion of the time segment of the second cardiac electrical signal corresponding to a most recent one of the sensed R-waves to confirm the most recent one of the R-waves. The ICD updates an unconfirmed beat count in response to the most recent one of the R-waves not being confirmed and withholds detection of a tachyarrhythmia episode in response to the unconfirmed beat count being equal to or greater than a rejection threshold.

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