Self-adjusting ECG morphological feature correlation threshold
    71.
    发明授权
    Self-adjusting ECG morphological feature correlation threshold 有权
    自适应心电图形态特征相关阈值

    公开(公告)号:US08260409B2

    公开(公告)日:2012-09-04

    申请号:US13018682

    申请日:2011-02-01

    IPC分类号: A61B5/0402

    摘要: An apparatus comprises first and second sensing circuits, a template generator circuit, and a correlation circuit. The correlation circuit is configured to identify a first fiducial position in a third cardiac signal sensed using the first sensing circuit during a detected rhythm with elevated ventricular rate, align the template correlation features and the correlation features of a fourth cardiac signal using the first fiducial position, calculate a correlation using the correlation features of the template and the correlation features of the fourth cardiac signal, and iteratively searching for a replacement to the first fiducial position in the third cardiac signal according to the calculated correlation.

    摘要翻译: 一种装置包括第一和第二感测电路,模板发生器电路和相关电路。 相关电路被配置为在检测到的具有升高的心室率的节律期间识别在使用第一感测电路感测的第三心脏信号中的第一基准位置,使用第一基准位置对准模板相关特征和第四心脏信号的相关特征 使用模板的相关特征和第四心脏信号的相关特征来计算相关性,并且根据所计算的相关性迭代地搜索第三心脏信号中的第一基准位置的替换。

    Post-shock recovery monitoring for tachyarrhythmia discrimination
    72.
    发明授权
    Post-shock recovery monitoring for tachyarrhythmia discrimination 有权
    急性心律失常辨别后的休克恢复监测

    公开(公告)号:US08214038B2

    公开(公告)日:2012-07-03

    申请号:US13195425

    申请日:2011-08-01

    IPC分类号: A61N1/362

    摘要: A cardiac rhythm management device is configured to discriminate between ventricular and supraventricular tachycardias (referred to as SVT/VT discrimination) by utilizing a morphology criterion in which the morphology of electrogram waveforms during ventricular beats are analyzed to determine if the beats are normally conducted. After the delivery of a cardioversion/defibrillation shock, however, the intraventricular conduction system is left in a modified state which alters the subsequently generated electrogram signal. Use of the morphology criterion for SVT/VT discrimination is discontinued after delivery of such a shock and resumed after a predetermined minimum number of normally conducted ventricular beats has been detected.

    摘要翻译: 心律管理装置被配置为通过利用形态学标准来区分心室和室上性心动过速(称为SVT / VT鉴别),其中分析心室搏动时的电描记图波形的形态以确定节拍是否正常进行。 然而,在输出心脏复律/除颤休克之后,心室内传导系统处于改变随后产生的电描记图信号的修改状态。 在发生这种休克后,停止使用SVT / VT鉴别的形态学标准,并且在检测到预定的最小数量的正常进行的心室搏动之后恢复。

    Atrial Tachyarrhythmia Detection using Selected Atrial Intervals
    73.
    发明申请
    Atrial Tachyarrhythmia Detection using Selected Atrial Intervals 有权
    使用所选心房间隔的房性快速性心律失常检测

    公开(公告)号:US20120035492A1

    公开(公告)日:2012-02-09

    申请号:US13275529

    申请日:2011-10-18

    IPC分类号: A61B5/0464 A61N1/365

    摘要: Methods and systems are directed to detecting atrial tachyarrhythmia. A plurality of A-A intervals is detected. The detected A-A intervals are selected and used to detect atrial tachyarrhythmia. Selecting A-A intervals may be based on determining that A-A intervals are qualified. Qualified A-A intervals may be determined if a duration of the particular A-A interval falls outside a predetermined duration range, for example. Qualified A-A intervals may also be determined based on events occurring between consecutively sensed atrial events of the particular A-A interval, and whether the duration of the particular A-A interval falls within the predetermined duration range, for example.

    摘要翻译: 方法和系统旨在检测房性快速性心律失常。 检测到多个A-A间隔。 检测到的A-A间隔被选择并用于检测房性快速性心律失常。 选择A-A间隔可以基于确定A-A间隔是合格的。 例如,如果特定A-A间隔的持续时间落在预定的持续时间范围之外,则可以确定合格的A-A间隔。 也可以基于特定A-A间隔的连续感测的心房事件之间发生的事件以及特定A-A间隔的持续时间是否落入预定持续时间范围内来确定合格的A-A间隔。

    Zoneless tachyarrhythmia detection with real-time rhythm monitoring
    74.
    发明授权
    Zoneless tachyarrhythmia detection with real-time rhythm monitoring 有权
    无声快速性心律失常检测与实时节律监测

    公开(公告)号:US08032217B2

    公开(公告)日:2011-10-04

    申请号:US12723805

    申请日:2010-03-15

    IPC分类号: A61N1/362

    摘要: A method of using an implantable medical device (IMD) to monitor a ventricular contraction rate of a subject, monitor an atrial contraction rate of the subject, declare tachyarrhythmia if the ventricular contraction rate exceeds the atrial contraction rate, and declare a slow tachyarrhythmia when the ventricular rate exceeds the atrial rate and the ventricular rate is less than a specified maximum pacing rate.

    摘要翻译: 使用可植入医疗装置(IMD)来监测受试者的心室收缩率的方法,监测受试者的心房收缩率,如果心室收缩率超过心房收缩率,则宣布快速性心律失常,并且当心律失常 心室率超过心房率,心室率低于规定的最大起搏率。

    IMPLANTABLE MEDICAL DEVICE INCLUDING ISOLATION TEST CIRCUIT
    75.
    发明申请
    IMPLANTABLE MEDICAL DEVICE INCLUDING ISOLATION TEST CIRCUIT 失效
    包括隔离测试电路的可植入医疗设备

    公开(公告)号:US20110160808A1

    公开(公告)日:2011-06-30

    申请号:US12977158

    申请日:2010-12-23

    IPC分类号: A61N1/36

    摘要: An implantable medical device can include a hermetically-sealed implantable housing, an exposed first conductor located on or near the housing, and at least one insulated second conductor located near the exposed first conductor. In an example, the implantable medical device can include an isolation test circuit to provide a test stimulus to the exposed first conductor and configured to measure a portion of the test stimulus coupled to the second conductor.

    摘要翻译: 可植入医疗装置可以包括密封的可植入壳体,位于壳体上或附近的暴露的第一导体,以及位于暴露的第一导体附近的至少一个绝缘的第二导体。 在一个示例中,可植入医疗设备可以包括隔离测试电路,以向暴露的第一导体提供测试刺激,并且被配置为测量耦合到第二导体的测试刺激的一部分。

    Zoneless tachyarrhythmia detection with real-time rhythm monitoring
    76.
    发明授权
    Zoneless tachyarrhythmia detection with real-time rhythm monitoring 有权
    无声快速性心律失常检测与实时节律监测

    公开(公告)号:US07702384B2

    公开(公告)日:2010-04-20

    申请号:US11301716

    申请日:2005-12-13

    IPC分类号: A61B5/04

    摘要: A system including an implantable medical device (IMD). The IMD includes a ventricular contraction sensing circuit that provides a sensed ventricular contraction signal, a timer circuit that provides a ventricular time interval between ventricular contractions, and a controller circuit coupled to the timer circuit, the controller circuit determines the ventricular contraction rate using the ventricular time interval. The controller circuit further includes a tachyarrhythmia detection module that declares tachyarrhythmia, in response to detecting a sudden rate increase, without comparing a ventricular rate or time interval to a respective tachyarrhythmia detection rate or time interval threshold.

    摘要翻译: 一种包括可植入医疗装置(IMD)的系统。 IMD包括提供感测到的心室收缩信号的心室收缩感测电路,提供心室收缩之间的心室时间间隔的定时器电路和耦合到定时器电路的控制器电路,控制器电路使用心室来确定心室收缩率 时间间隔。 控制器电路还包括快速性心律失常检测模块,其响应于检测到突然的速率增加而声明快速性心律失常,而不将心室率或时间间隔与相应的快速性心律失常检测率或时间间隔阈值进行比较。

    SUSTAINING VENTRICULAR TACHYCARDIA DETECTION
    77.
    发明申请
    SUSTAINING VENTRICULAR TACHYCARDIA DETECTION 有权
    持续性静脉卡车检测

    公开(公告)号:US20100057152A1

    公开(公告)日:2010-03-04

    申请号:US12552614

    申请日:2009-09-02

    IPC分类号: A61N1/365 A61N1/39 A61B5/0464

    摘要: An apparatus comprises an implantable ventricular depolarization sensing circuit configured to provide a sensed ventricular depolarization signal, a timer circuit configured to provide a ventricular time interval between ventricular depolarizations, and a controller circuit communicatively coupled to the ventricular depolarization sensing circuit and the timer circuit. The controller circuit includes a ventricular tachycardia (VT) detection circuit configured to declare an episode of VT when a number of accelerated beats are detected, calculate a hysteresis VT detection threshold interval, and deem whether the episode of VT persists using the hysteresis VT detection threshold interval.

    摘要翻译: 一种装置包括可植入心室去极化感测电路,其被配置为提供感测到的心室去极化信号,定时器电路,其被配置为提供心室去极化之间的心室时间间隔,以及通信地耦合到心室去极化感测电路和定时器电路的控制器电路。 所述控制器电路包括心室性心动过速(VT)检测电路,其被配置为当检测到多个加速搏动时声明VT的发作,计算滞后VT检测阈值间隔,并且使用滞后VT检测阈值来确定VT的发作是否持续 间隔。

    Dual sensing for brady-tachy pacemaker/ICD
    78.
    发明授权
    Dual sensing for brady-tachy pacemaker/ICD 失效
    双重感觉用于快速起搏器/ ICD

    公开(公告)号:US07650182B2

    公开(公告)日:2010-01-19

    申请号:US11177230

    申请日:2005-07-08

    IPC分类号: A61B5/0464

    摘要: A system detects events related to cardiac activity. The system comprises a primary cardiac signal sensing circuit, at least one secondary cardiac signal sensing circuit having a higher sensitivity than the primary sensing circuit, and a controller circuit coupled to the primary and secondary cardiac signal sensing circuits. The controller circuit determines a rate of depolarization using the primary sensing circuit and detects tachyarrhythmia using the rate. The controller circuit also detects tachyarrhythmia using the secondary sensing circuit and also deems the tachyarrhythmia valid if the controller circuit detects the tachyarrhythmia using both the primary and secondary sensing circuit.

    摘要翻译: 系统检测与心脏活动相关的事件。 所述系统包括主要心脏信号感测电路,至少一个具有比初级感测电路更高灵敏度的次级心脏信号感测电路,以及耦合到主要和次要心脏信号感测电路的控制器电路。 控制器电路使用主感测电路确定去极化率,并使用该速率检测快速性心律失常。 控制器电路还使用次级感测电路检测快速性心律失常,并且如果控制器电路使用主感测电路和次感测电路检测到快速性心律失常,则认为快速性心律失常是有效的。

    CARDIAC RHYTHM MANAGEMENT SYSTEMS AND METHODS USING MULTIPLE MORPHOLOGY TEMPLATES FOR DISCRIMINATING BETWEEN RHYTHMS
    79.
    发明申请
    CARDIAC RHYTHM MANAGEMENT SYSTEMS AND METHODS USING MULTIPLE MORPHOLOGY TEMPLATES FOR DISCRIMINATING BETWEEN RHYTHMS 审中-公开
    CARDIAC RHYTHM管理系统和使用多种形态模板分析RHYTHMS之间的方法

    公开(公告)号:US20090216289A1

    公开(公告)日:2009-08-27

    申请号:US12431633

    申请日:2009-04-28

    IPC分类号: A61N1/365 A61N1/39

    CPC分类号: A61N1/3956 A61B5/04525

    摘要: This document describes systems, devices, and methods that use multiple morphology templates for discriminating between rhythms, such as supraventricular tachyarrhythmias (SVTs) and ventricular tachyarrhythmias (VTs), for delivering a countershock in response to a VT episode, but withholding delivery of such a countershock in response to an SVT episode. In certain examples, the particular morphology used for storing morphological features is selected at least in part using a sensor-indicated activity level of a subject, or a metabolic need of the subject.

    摘要翻译: 本文档描述了使用多种形态学模板来区分节律(例如室上性快速性心律失常(SVT))和室性快速性心律失常(VT)的系统,装置和方法,用于响应于VT发作而产生反冲突,但是不提供这种 反应SVT情节。 在某些实例中,用于存储形态特征的特定形态至少部分地使用受试者的传感器指示的活动水平或受试者的代谢需要。

    METHOD AND APPARATUS FOR CONCURRENT ATRIO-VENTRICULAR ANTI-TACHYCARDIA PACING
    80.
    发明申请
    METHOD AND APPARATUS FOR CONCURRENT ATRIO-VENTRICULAR ANTI-TACHYCARDIA PACING 有权
    相关性ATRIO-VENTRICULAR ANTI-TACHYCARDIA PACING的方法和装置

    公开(公告)号:US20090099616A1

    公开(公告)日:2009-04-16

    申请号:US12234840

    申请日:2008-09-22

    IPC分类号: A61N1/365

    摘要: An implantable medical device delivers anti-tachyarrhythmia therapies including anti-tachycardia pacing (ATP). If a detected tachyarrhythmia is classified as a type suitable for treatment using ATP, the implantable medical device selects one of an atrial ATP (A-ATP) mode, a ventricular ATP (V-ATP) mode, and a concurrent atrio-ventricular ATP (concurrent AV-ATP) mode according to the characteristics of the detected tachyarrhythmia. The concurrent ATP mode is an ATP mode during which the atrial pacing pulses and the ventricular pacing pulses are delivered concurrently. In one embodiment, the concurrent AV-ATP mode includes a synchronized atrio-ventricular ATP (synchronized AV-ATP) mode during which atrial and ventricular pacing pulses are delivered synchronously and an independent atrio-ventricular ATP (independent AV-ATP) mode during which atrial and ventricular pacing pulses are delivered concurrently but timed independently.

    摘要翻译: 植入式医疗装置提供抗心律失常疗法,包括抗心动过速起搏(ATP)。 如果检测到的快速性心律失常被分类为适合于使用ATP治疗的类型,则可植入医疗装置选择心房ATP(A-ATP)模式,心室ATP(V-ATP)模式和并发心室ATP 并发AV-ATP)模式根据检测到的快速性心律失常的特点。 并发ATP模式是ATP模式,其中心房起搏脉冲和心室起搏脉冲同时传递。 在一个实施方案中,并发的AV-ATP模式包括同步的心房ATP(同步的AV-ATP)模式,其中同步递送心房和心室起搏脉冲以及独立的心房ATP(独立的AV-ATP)模式,在此期间 心房和心室起搏脉冲同时传递,但可以独立计时。