SUPRAVENTRICULAR TACHYARRHYTHMIA DISCRIMINATION

    公开(公告)号:WO2019118560A1

    公开(公告)日:2019-06-20

    申请号:PCT/US2018/065131

    申请日:2018-12-12

    申请人: MEDTRONIC, INC.

    IPC分类号: A61N1/362 A61N1/365 A61N1/37

    摘要: Techniques are described for discriminating SVT and, in particular, rapidly conducting AF. The techniques include detecting an onset of a fast rate of ventricular events sensed from a cardiac electrical signal and detecting a pause in the fast rate of ventricular sensed events. A threshold number of ventricular event intervals required to detect a ventricular tachyarrhythmia is detected with each of the threshold number of ventricular event intervals being less than a tachyarrhythmia detection interval. Detection of the ventricular tachyarrhythmia and an electrical stimulation therapy for treating the ventricular tachyarrhythmia are withheld in response to at least the pause being detected.

    CARDIAC ELECTRICAL SIGNAL MORPHOLOGY AND PATTERN-BASED T-WAVE OVERSENSING REJECTION
    2.
    发明申请
    CARDIAC ELECTRICAL SIGNAL MORPHOLOGY AND PATTERN-BASED T-WAVE OVERSENSING REJECTION 审中-公开
    心脏电信号形态和基于模式的T波过度拒绝

    公开(公告)号:WO2018022676A1

    公开(公告)日:2018-02-01

    申请号:PCT/US2017/043823

    申请日:2017-07-26

    申请人: MEDTRONIC, INC.

    IPC分类号: A61N1/39 A61B5/0468

    摘要: A medical device, such as an extra-cardiovascular implantable cardioverter defibrillator (ICD), 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 acquired by a second sensing channel in response to each sensed R-wave. The ICD determines morphology match scores from the stored time segments of the second cardiac electrical signal and, based on the morphology match scores, withholds detection of a tachyarrhythmia episode. In some examples, the ICD detects T-wave oversensing based on the morphology match scores and withholds detection of a tachyarrhythmia episode in response to detecting the T-wave oversensing.

    摘要翻译: 诸如额外心血管植入式心脏复律除颤器(ICD)之类的医疗设备通过第一感测通道感测来自第一心脏电信号的R波并且存储第二心脏电信号的时间段 信号,其响应于每个感测的R波而由第二感测通道采集。 ICD从第二心脏电信号的存储时间段确定形态匹配得分,并基于形态匹配得分,阻止检测到快速性心律失常发作。 在一些示例中,ICD基于形态学匹配得分检测T波过敏,并且响应于检测到T波过度感测而阻止检测到快速性心律失常发作。

    MEDICAL SYSTEM FOR DETECTING AN ATRIAL TACHYARRHYTHMIA THROUGH CLASSIFICATION BASED ON HEART RATE VARIABILITY
    3.
    发明申请
    MEDICAL SYSTEM FOR DETECTING AN ATRIAL TACHYARRHYTHMIA THROUGH CLASSIFICATION BASED ON HEART RATE VARIABILITY 审中-公开
    基于心率变异性分类检测房性心律失常的医疗系统

    公开(公告)号:WO2017172272A1

    公开(公告)日:2017-10-05

    申请号:PCT/US2017/020877

    申请日:2017-03-06

    申请人: MEDTRONIC, INC.

    IPC分类号: A61B5/0464 A61N1/362

    摘要: A medical device (60) for detecting an atrial tachyarrhythmia comprises a processor configured to determine RR intervals between successive R-waves of a cardiac electrical signal and to determine classification factors from the R-waves identified over a predetermined time period by determining at least a first classification factor correlated to variability of the RR intervals and a second classification factor indicating a presence of a ventricular tachyarrhythmia. The processor is configured to classify the cardiac electrical signal of the predetermined time period as unclassified, atrial tachyarrhythmia or non-atrial tachyarrhythmia based on a comparison of the determined classification factors to classification criteria.

    摘要翻译: 用于检测房性快速性心律失常的医疗设备(60)包括处理器,该处理器被配置为确定心脏电信号的连续R波之间的RR间隔并且从在所述R波上识别的R波确定分类因子 通过确定与RR间期的可变性相关的至少第一分类因子和指示存在室性快速性心律失常的第二分类因子来确定预定时间段。 处理器被配置为基于所确定的分类因子与分类标准的比较将预定时间段的心脏电信号分类为未分类的,房性快速性心律失常或非房性快速性心律失常。

    SYSTEMS AND METHODS TO IMPROVE ANTI-TACHYCARDIAL PACING (ATP) ALGORITHMS
    4.
    发明申请
    SYSTEMS AND METHODS TO IMPROVE ANTI-TACHYCARDIAL PACING (ATP) ALGORITHMS 审中-公开
    用于改进抗心动过速(ATP)算法的系统和方法

    公开(公告)号:WO2017136609A1

    公开(公告)日:2017-08-10

    申请号:PCT/US2017/016304

    申请日:2017-02-02

    IPC分类号: A61N1/365 A61N1/37 A61N1/375

    摘要: Apparatus, systems and methods are provided for prevention and/or remediation of cardiac arrhythmias, e.g., for optimizing anti-tachycardia pacing (ATP) algorithms. More particularly, implantable devices are provided that measure and treat cardiac arrhythmias. By monitoring the ATP attempt from additional electrodes, far-field morphology analyses, and/or measuring the return interval from a failed ATP attempt, the devices may estimate when entrainrnent has occurred, the amount of delay within the reentrant tachycardia, and/or tachycardia termination/acceleration. These variables and occurrences can be used to optimize the first and/or subsequent ATP attempts. Furthermore, other exemplary embodiments describe methods to integrate electrical restitution properties into the design of ATP pacing algorithms to facilitate tachycardia termination.

    摘要翻译: 提供了用于预防和/或修复心律不齐的装置,系统和方法,例如用于优化抗心动过速起搏(ATP)算法。 更具体地说,提供了测量和治疗心律失常的可植入装置。 通过监测来自附加电极的ATP尝试,远场形态分析和/或测量来自失败的ATP尝试的返回间隔,装置可以估计何时发生夹带,延迟在再折射的心动过速内的量和/或心动过速 终止/加速。 这些变量和事件可以用来优化第一次和/或后续的ATP尝试。 此外,其他示例性实施例描述了将电恢复特性集成到ATP起搏算法的设计中以促进心动过速终止的方法。

    DISPOSITIF MÉDICAL IMPLANTABLE ACTIF DE DÉFIBRILLATION, COMPRENANT DES MOYENS PERFECTIONNÉS DE DISCRIMINATION ENTRE BRUIT EXTERNE ET RUPTURE DE SONDE ET DE CARACTÉRISATION DES TACHYARYTHMIES
    6.
    发明申请
    DISPOSITIF MÉDICAL IMPLANTABLE ACTIF DE DÉFIBRILLATION, COMPRENANT DES MOYENS PERFECTIONNÉS DE DISCRIMINATION ENTRE BRUIT EXTERNE ET RUPTURE DE SONDE ET DE CARACTÉRISATION DES TACHYARYTHMIES 审中-公开
    植入式医疗器械ACTIVE除颤,包括先进的歧视手段和噪声外部探头与表征快速性心律失常违反

    公开(公告)号:WO2017121702A1

    公开(公告)日:2017-07-20

    申请号:PCT/EP2017/050345

    申请日:2017-01-09

    申请人: SORIN CRM SAS

    摘要: Ce dispositif recueille deux signaux EGM sur des voies respectives distinctes, donnant deux composantes temporelles respectives. Les deux composantes temporelles sont combinées en une unique caractéristique 2D paramétrique représentative du cycle cardiaque. Lors d'un épisode de tachyarythmie, le dispositif mémorise (104) les valeurs successives de la variation cycle-à-cycle de l'amplitude d'un desdits signaux EGM, les distribue en une pluralité de classes correspondant chacune à un intervalle d'amplitude, et opère (120, 126) une analyse statistique des effectifs de chaque classe de manière à délivrer sélectivement, en fonction d'au moins un critère prédéterminé appliqué à la distribution des variations d'amplitude dans les différentes classes, un indicateur de suspicion d'artefact d'origine extracardiaque ou un indicateur de type de tachyarythmie.

    摘要翻译: 该设备在分开的相应通道上收集两个EGM信号,给出两个相应的时间分量。 两个时间分量被组合成心动周期的单个代表性2D参数。 在快速性心律失常的DE插曲,M E设备; Morise(104)连续的变化数值cycle-à中的一个的振幅-cycle所述EGM信号,将它们分配到多个解 每一个对应的类别> 振幅范围,并且操作(120,126)每个操作类别的数量的统计分析; 根据至少一个预先确定的标准定期进行交付。 应用é À 不同类别的振幅变化分布,怀疑心脏外造影或快速性心律失常类型指标的指标。

    SYSTEMS AND METHODS FOR IDENTIFYING OPTIMIZED ABLATION TARGETS FOR TREATING AND PREVENTING ARRHYTHMIAS SUSTAINED BY REENTRANT CIRCUITS
    8.
    发明申请
    SYSTEMS AND METHODS FOR IDENTIFYING OPTIMIZED ABLATION TARGETS FOR TREATING AND PREVENTING ARRHYTHMIAS SUSTAINED BY REENTRANT CIRCUITS 审中-公开
    用于识别优化的消融目标以治疗和预防再通过回路所持续的心律失常的系统和方法

    公开(公告)号:WO2017096332A1

    公开(公告)日:2017-06-08

    申请号:PCT/US2016/064868

    申请日:2016-12-03

    IPC分类号: A61N1/39

    摘要: Methods and systems for identifying optimized ablation targets for treating and preventing arrhythmias sustained by reentrant circuits are described. The methods comprise receiving at least one mesh generated from one or more images of a patient's heart, receiving activation data generated from one or more simulations of electrical-signal propagation over the at least one mesh, generating at least one flow graph based on the activation data and the at least one mesh, and applying a max-flow m in-cut algorithm to the at least one flow graph to determine at least one of a number, one or more dimensions, and one or more locations of one or more ablation targets. Non-transitory computer-readable media storing a set of instructions for treating and preventing arrhythmias sustained by reentrant circuits are also described.

    摘要翻译: 描述了用于识别用于治疗和预防由可重入电路维持的心律不齐的方法和系统。 该方法包括接收从患者心脏的一个或多个图像生成的至少一个网格,接收通过至少一个网格上的电信号传播的一个或多个模拟生成的激活数据,基于激活生成至少一个流程图 数据和所述至少一个网格,以及将最大流量m内切算法应用于所述至少一个流程图以确定一个或多个消融的数量,一个或多个维度以及一个或多个位置中的至少一个 目标。 还描述了存储用于治疗和预防由可重入电路维持的心律失常的一组指令的非暂时性计算机可读介质。

    NON-INVASIVE DETERMINATION OF RISK FOR SUDDEN CARDIAC DEATH
    9.
    发明申请
    NON-INVASIVE DETERMINATION OF RISK FOR SUDDEN CARDIAC DEATH 审中-公开
    非侵入性确定减轻心脏病死亡风险

    公开(公告)号:WO2017048684A1

    公开(公告)日:2017-03-23

    申请号:PCT/US2016/051460

    申请日:2016-09-13

    摘要: A method and apparatus for the quantitative determination of an individual's risk for sudden cardiac death (SCD) is described. Risk determination is accomplished and may have a sensitivity and specificity of greater than 95%, by generating linear and nonlinear mathematical digital ECG-constructed models from digital ECG-type data of an individual's digital ECG, determining stability/instability of digital ECG-constructed control model systems corresponding to the digital ECG-constructed models by a plurality of techniques and transforming stability/instability values obtained by the determining stability/instability into a quantitative value reflecting an individual's risk for SCD.

    摘要翻译: 描述了用于定量确定个体心脏猝死风险(SCD)的方法和装置。 通过从个人数字ECG的数字ECG型数据生成线性和非线性数学ECG构建的模型,确定数字ECG构造控制的稳定性/不稳定性,实现风险确定并具有大于95%的灵敏度和特异性 通过多种技术对应于数字ECG构造的模型的模型系统,并将通过确定稳定性/不稳定性获得的稳定性/不稳定性值转换为反映个体对SCD的风险的定量值。

    DETECTION OF VALID SIGNALS VERSUS ARTIFACTS IN A MULTICHANNEL MAPPING SYSTEM
    10.
    发明申请
    DETECTION OF VALID SIGNALS VERSUS ARTIFACTS IN A MULTICHANNEL MAPPING SYSTEM 审中-公开
    在多通道映射系统中检测有效信号的维度

    公开(公告)号:WO2017023392A1

    公开(公告)日:2017-02-09

    申请号:PCT/US2016/032365

    申请日:2016-05-13

    申请人: MEDTRONIC, INC.

    IPC分类号: A61N1/37

    摘要: A system and associated method is disclosed that comprises an electrode apparatus comprising a plurality of electrodes configured to be located proximate tissue of a patient. A display apparatus comprising a graphical user interface, wherein the graphical user interface is configured to present information to a user. A computing apparatus coupled to the electrode apparatus and display apparatus, wherein the computing apparatus is configured to determine whether a signal acquired from a channel associated with an electrode from the plurality of electrodes is valid and sufficiently strong by i) calculating a first derivative of the signal; ii) determining a minimum and maximum derivative from the first derivative; iii) determining whether signs of the minimum and maximum derivative are different; and in response to determining whether the signs of the minimum and maximum derivative are different, displaying on a display apparatus whether the signal is valid.

    摘要翻译: 公开了一种包括电极装置的系统和相关方法,所述电极装置包括被配置为位于患者的组织附近的多个电极。 一种显示装置,包括图形用户界面,其中所述图形用户界面被配置为向用户呈现信息。 一种耦合到所述电极装置和显示装置的计算装置,其中所述计算装置被配置为确定从与所述多个电极中的电极相关联的通道获取的信号是否有效并且足够强,i)计算所述电极装置的显示装置的一阶导数 信号; ii)确定一阶导数的最小和最大导数; iii)确定最小和最大导数的符号是​​否不同; 并且响应于确定最小和最大导数的符号是​​否不同,在显示装置上显示信号是否有效。