REDUCTION OF INTERACTION WITH TACHYARRHYTHMIA DETECTION BY NEGATIVE OFFSET PACING
    31.
    发明申请
    REDUCTION OF INTERACTION WITH TACHYARRHYTHMIA DETECTION BY NEGATIVE OFFSET PACING 有权
    减少与负面偏差相关的TACHYARRHYTHMIA检测

    公开(公告)号:US20060116728A1

    公开(公告)日:2006-06-01

    申请号:US11276031

    申请日:2006-02-10

    IPC分类号: A61N1/36

    CPC分类号: A61N1/3622

    摘要: A device and method is disclosed for improving tachyarrhythmia detection when the ventricles are resynchronized by delivering paces to both ventricles separated by a specified negative offset interval. Timing of escape intervals and tachyarrhythmia detection is based upon senses from one of the ventricles designated as a rate ventricle. Techniques are presented for preventing tachyarrhythmia detection from being compromised when the rate ventricle is paced after the other ventricle.

    摘要翻译: 公开了一种用于改善心律失常检测的装置和方法,当通过将指定的负偏移间隔分开的两个心室递送步调来再同步时,心律失常检测。 逃避间隔和快速性心律失常检测的时间是基于指定为速率心室的心室之一的感觉。 提出技术用于在速率心室在另一脑室之后起搏时预防快速性心律失常检测受到损害。

    Site reversion in cardiac rhythm management
    32.
    发明申请

    公开(公告)号:US20050256547A1

    公开(公告)日:2005-11-17

    申请号:US11187278

    申请日:2005-07-22

    IPC分类号: A61N1/08 A61N1/362 A61N1/37

    摘要: Methods for failure recovery in a cardiac rhythm management system and apparatus capable of carrying out the methods. The methods include applying a first pacing therapy using one or more leads. The methods further include detecting a failure condition on one or more of the leads, wherein the failure condition prohibits or frustrates application of the first pacing therapy. The methods still further include applying a second pacing therapy using one or more of the leads subsequent to detecting the failure condition. The second pacing therapy is preferably chosen such that the detected failure does not interfere with the second pacing therapy. The second pacing therapy may be applied for only one cardiac cycle. The second pacing therapy may further be applied continuously until the failure condition is resolved, or it may be latched such that physician intervention is required to resume the first pacing therapy.

    Cardiac rhythm management system with arrhythmia classification and electrode selection
    34.
    发明申请
    Cardiac rhythm management system with arrhythmia classification and electrode selection 失效
    具有心律失常分类和电极选择的心律管理系统

    公开(公告)号:US20050203581A1

    公开(公告)日:2005-09-15

    申请号:US11125501

    申请日:2005-05-10

    IPC分类号: A61N1/362 A61N1/368

    CPC分类号: A61N1/3622 A61N1/3684

    摘要: A system, method, or device classifies an arrhythmia according to the temporal order in which a depolarization wave associated with a particular heart contraction is received at a plurality of electrodes. One or more antiarrhythmia therapies is mapped to each arrhythmia classification. When a particularly classified arrhythmia is detected, the correspondingly mapped therapy list is selected and an appropriate antiarrhythmia therapy delivered. In one example, the particular therapy delivered in response to an arrhythmia depends at least in part on its historical success in treating arrhythmias of that classification.

    摘要翻译: 系统,方法或装置根据在多个电极处接收与特定心脏收缩相关联的去极化波的时间顺序对心律失常进行分类。 一种或多种抗心律失常疗法被映射到每种心律失常分类。 当检测到特别分类的心律失常时,选择相应地映射的治疗列表并进行适当的抗心律失常治疗。 在一个示例中,响应于心律失常递送的特定治疗至少部分地取决于其在治疗该分类的心律失常方面的历史成功。

    CLOSED LOOP IMPEDANCE-BASED CARDIAC RESYNCHRONIZATION THERAPY SYSTEMS, DEVICES, AND METHODS
    39.
    发明申请
    CLOSED LOOP IMPEDANCE-BASED CARDIAC RESYNCHRONIZATION THERAPY SYSTEMS, DEVICES, AND METHODS 有权
    基于闭环阻塞的心脏再生治疗系统,装置和方法

    公开(公告)号:US20080114410A1

    公开(公告)日:2008-05-15

    申请号:US12016830

    申请日:2008-01-18

    IPC分类号: A61N1/365

    摘要: This document discusses, among other things, systems, devices, and methods measure an impedance and, in response, adjust an atrioventricular (AV) delay or other cardiac resynchronization therapy (CRT) parameter that synchronizes left and right ventricular contractions. A first example uses parameterizes a first ventricular volume against a second ventricular volume during a cardiac cycle, using a loop area to create a synchronization fraction (SF). The CRT parameter is adjusted in closed-loop fashion to increase the SF. A second example measures a septal-freewall phase difference (PD), and adjusts a CRT parameter to decrease the PD. A third example measures a peak-to-peak volume or maximum rate of change in ventricular volume, and adjusts a CRT parameter to increase the peak-to-peak volume or maximum rate of change in the ventricular volume.

    摘要翻译: 本文件还讨论了系统,设备和方法测量阻抗,并作为响应调整房室(AV)延迟或同步左心室收缩和右心室收缩的其他心脏再同步治疗(CRT)参数。 第一个例子是使用循环区域创建同步分数(SF),在心动周期中使用第一心室容积对第二心室容积进行参数化。 CRT参数以闭环方式调整以增加SF。 第二个例子是测量隔层相位差(PD),并调整CRT参数以减少PD。 第三个例子测量心室容积的峰 - 峰体积或最大变化率,并调整CRT参数以增加心室容积的峰 - 峰体积或最大变化率。

    DETECTION OF PLEURAL EFFUSION USING TRANSTHORACIC IMPEDANCE
    40.
    发明申请
    DETECTION OF PLEURAL EFFUSION USING TRANSTHORACIC IMPEDANCE 有权
    使用TRANSTHORACIC阻抗检测临时效应

    公开(公告)号:US20080108907A1

    公开(公告)日:2008-05-08

    申请号:US11972405

    申请日:2008-01-10

    IPC分类号: A61B5/085

    摘要: This patent document discusses systems, devices, and methods for increasing a sensitivity or specificity of thoracic fluid detection in a subject and differentiating between pleural effusion and pulmonary edema. In one example, a thoracic impedance measurement circuit senses a thoracic impedance signal. In another example, a processor receives the thoracic impedance signal and determines whether such thoracic impedance signal is “significant.” A significant thoracic impedance signal indicates the presence of thoracic fluid and may be recognized by comparing the thoracic impedance signal (or variation thereof) to a thoracic impedance threshold. When a significant thoracic impedance signal is recognized, the processor is adapted to detect one or both of: a pleural effusion indication and a pulmonary edema indication using one or a combination of: physiologic information, patient symptom information, and posture information. In another example, the thoracic impedance threshold is adjusted using such physiologic, patient symptom, or posture information.

    摘要翻译: 该专利文献讨论了用于增加受试者胸部液体检测的敏感性或特异性并区分胸腔积液和肺水肿的系统,装置和方法。 在一个示例中,胸部阻抗测量电路感测胸部阻抗信号。 在另一示例中,处理器接收胸部阻抗信号并确定这种胸部阻抗信号是否“显着”。 显着的胸部阻抗信号表示胸腔液的存在,并且可以通过将胸部阻抗信号(或其变化)与胸部阻抗阈值进行比较来识别。 当识别出显着的胸部阻抗信号时,处理器适合于使用生理信息,患者症状信息和姿势信息中的一个或组合来检测胸腔积液指示和肺水肿指示之一或两者。 在另一个例子中,使用这种生理,患者症状或姿势信息来调整胸阻抗阈值。