Prediction of thoracic fluid accumulation
    92.
    发明授权
    Prediction of thoracic fluid accumulation 有权
    预测胸腔积液

    公开(公告)号:US08900154B2

    公开(公告)日:2014-12-02

    申请号:US11136195

    申请日:2005-05-24

    摘要: This patent document discusses, among other things, systems, devices, and methods for predicting an occurrence of impending thoracic fluid accumulation and in one example, invoking a responsive therapy, such as to prevent or minimize the consequences of the impending thoracic fluid accumulation. One example of the present systems, devices, and methods senses or receives at least one parameter that is statistically associated with impending thoracic fluid accumulation from a subject. Using such parameter(s), a probability of impending thoracic fluid accumulation is estimated. A list of parameters determines which values are recurrently sensed or received at various desired time intervals. Another example of the present systems, devices, and methods weights the sensed or received parameter value(s) to compute the probability estimate of impending thoracic fluid accumulation. A responsive preventive thoracic fluid accumulation therapy or other therapy is selected and activated using the probability estimate of impending thoracic fluid accumulation.

    摘要翻译: 该专利文献尤其涉及用于预测即将到来的胸腔积液的发生的系统,装置和方法,并且在一个示例中,引用响应性治疗,例如防止或最小化即将到来的胸腔积液的后果。 本系统,装置和方法的一个示例感测或接收至少一个与来自受试者的即将到来的胸腔积液相关联的参数。 使用这样的参数,估计即将到来的胸腔积液的概率。 参数列表确定以各种期望的时间间隔反复感测或接收哪些值。 本系统,装置和方法的另一个例子对感测或接收的参数值进行加权,以计算即将到来的胸腔积液的概率估计。 使用即将到来的胸腔积液的概率估计来选择和激活反应性预防性胸腔积液治疗或其他治疗。

    Implantable devices and methods using frequency-domain analysis of thoracic signal
    93.
    发明授权
    Implantable devices and methods using frequency-domain analysis of thoracic signal 有权
    可植入装置和方法使用胸腔信号的频域分析

    公开(公告)号:US07186220B2

    公开(公告)日:2007-03-06

    申请号:US10612387

    申请日:2003-07-02

    IPC分类号: A61B5/08

    摘要: This document describes, among other things, systems, devices, and methods that use frequency domain analysis of a thoracic signal. One example uses frequency domain analysis for discriminating between different pulmonary physiological states. Examples of breathing states include normal breathing, periodic breathing, Cheyne-Stokes breathing, obstructed respiration, restrictive respiration, and pulmonary edema. The frequency domain analysis may also be used for performing heart rate variability (HRV) diagnostics. In one example, a frequency domain adaptive filter implements a variable cutoff frequency for separating heart contraction spectral content and other spectral content from lower frequency respiration spectral content and other lower frequency spectral content.

    摘要翻译: 本文档描述了使用胸部信号的频域分析的系统,设备和方法。 一个例子使用频域分析来区分不同的肺部生理状态。 呼吸状态的例子包括正常呼吸,定期呼吸,切尼 - 斯托克斯呼吸,阻塞呼吸,限制性呼吸和肺水肿。 频域分析也可用于执行心率变异性(HRV)诊断。 在一个示例中,频域自适应滤波器实现用于将心脏收缩频谱内容和其他频谱内容与较低频率呼吸频谱内容和其他较低频谱内容分离的可变截止频率。

    Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods
    94.
    发明申请
    Closed loop impedance-based cardiac resynchronization therapy systems, devices, and methods 有权
    基于闭环阻抗的心脏再同步治疗系统,装置和方法

    公开(公告)号:US20060271119A1

    公开(公告)日:2006-11-30

    申请号:US11264941

    申请日:2005-11-02

    IPC分类号: A61N1/362

    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。

    Implantable devices and methods using frequency-domain analysis of thoracic signal
    95.
    发明申请
    Implantable devices and methods using frequency-domain analysis of thoracic signal 有权
    可植入装置和方法使用胸腔信号的频域分析

    公开(公告)号:US20050004609A1

    公开(公告)日:2005-01-06

    申请号:US10612387

    申请日:2003-07-02

    IPC分类号: A61B5/053 A61B5/08 A61N1/365

    摘要: This document describes, among other things, systems, devices, and methods that use frequency domain analysis of a thoracic signal. One example uses frequency domain analysis for discriminating between different pulmonary physiological states. Examples of breathing states include normal breathing, periodic breathing, Cheyne-Stokes breathing, obstructed respiration, restrictive respiration, and pulmonary edema. The frequency domain analysis may also be used for performing heart rate variability (HRV) diagnostics. In one example, a frequency domain adaptive filter implements a variable cutoff frequency for separating heart contraction spectral content and other spectral content from lower frequency respiration spectral content and other lower frequency spectral content.

    摘要翻译: 本文档描述了使用胸部信号的频域分析的系统,设备和方法。 一个例子使用频域分析来区分不同的肺部生理状态。 呼吸状态的例子包括正常呼吸,定期呼吸,切尼 - 斯托克斯呼吸,阻塞呼吸,限制性呼吸和肺水肿。 频域分析也可用于执行心率变异性(HRV)诊断。 在一个示例中,频域自适应滤波器实现用于将心脏收缩频谱内容和其他频谱内容与较低频率呼吸频谱内容和其他较低频谱内容分离的可变截止频率。

    Prediction of thoracic fluid accumulation
    96.
    发明申请
    Prediction of thoracic fluid accumulation 有权
    预测胸腔积液

    公开(公告)号:US20060271116A1

    公开(公告)日:2006-11-30

    申请号:US11136195

    申请日:2005-05-24

    IPC分类号: A61N1/00

    摘要: This patent document discusses, among other things, systems, devices, and methods for predicting an occurrence of impending thoracic fluid accumulation and in one example, invoking a responsive therapy, such as to prevent or minimize the consequences of the impending thoracic fluid accumulation. One example of the present systems, devices, and methods senses or receives at least one parameter that is statistically associated with impending thoracic fluid accumulation from a subject. Using such parameter(s), a probability of impending thoracic fluid accumulation is estimated. A list of parameters determines which values are recurrently sensed or received at various desired time intervals. Another example of the present systems, devices, and methods weights the sensed or received parameter value(s) to compute the probability estimate of impending thoracic fluid accumulation. A responsive preventive thoracic fluid accumulation therapy or other therapy is selected and activated using the probability estimate of impending thoracic fluid accumulation.

    摘要翻译: 该专利文献尤其涉及用于预测即将到来的胸腔积液的发生的系统,装置和方法,并且在一个示例中,引用响应性治疗,例如防止或最小化即将到来的胸腔积液的后果。 本系统,装置和方法的一个示例感测或接收至少一个与来自受试者的即将到来的胸腔积液相关联的参数。 使用这样的参数,估计即将到来的胸腔积液的概率。 参数列表确定以各种期望的时间间隔反复感测或接收哪些值。 本系统,装置和方法的另一个例子对感测或接收的参数值进行加权,以计算即将到来的胸腔积液的概率估计。 使用即将到来的胸腔积液的概率估计来选择和激活反应性预防性胸腔积液治疗或其他治疗。

    Respiration monitoring for heart failure using implantable device
    97.
    发明授权
    Respiration monitoring for heart failure using implantable device 有权
    使用可植入装置进行心力衰竭呼吸监测

    公开(公告)号:US08226570B2

    公开(公告)日:2012-07-24

    申请号:US11463076

    申请日:2006-08-08

    IPC分类号: A61B5/08

    摘要: An implantable respiration monitor can be used to detect disordered breathing or periodic breathing events that can be categorized, such as according to one or more of sleep, exercise, and resting awake states. The categorized frequency of such events can be compared to independently specifiable thresholds, such as to trigger an alert or responsive therapy, or to display one or more trends. The information can also be combined with detection of one or more other congestive heart failure (CHF) symptoms to generate a CHF status indicator or to trigger an alarm or responsive therapy or to display one or more trends. The alert can notify the patient or a caregiver, such as via remote monitoring. The sleep state information can be further categorized according to central sleep apnea (CSA) or obstructive sleep apnea (OSA) events.

    摘要翻译: 可植入式呼吸监测器可用于检测可分类的无序呼吸或定期呼吸事件,例如根据睡眠,运动和休眠状态中的一种或多种。 这些事件的分类频率可以与独立指定的阈值进行比较,例如触发警报或响应治疗,或显示一个或多个趋势。 该信息还可以与一种或多种其他充血性心力衰竭(CHF)症状的检测相结合,以产生CHF状态指示器或触发警报或反应性治疗或显示一种或多种趋势。 该警报可以通过远程监视来通知病人或看护者。 睡眠状态信息可以根据中枢性睡眠呼吸暂停(CSA)或阻塞性睡眠呼吸暂停(OSA)事件进一步分类。

    Adaptive baroreflex stimulation therapy for disordered breathing
    100.
    发明授权
    Adaptive baroreflex stimulation therapy for disordered breathing 有权
    适应性压力反射刺激治疗无序呼吸

    公开(公告)号:US08442638B2

    公开(公告)日:2013-05-14

    申请号:US12781447

    申请日:2010-05-17

    IPC分类号: A61N1/3601 A61N1/3611

    摘要: An approach to providing disordered breathing therapy includes delivering electrical stimulation therapy modifying a patient's baroreflex response. Disordered breathing therapy may be delivered in response to prediction or detection of disordered breathing events. Various conditions affecting the patient may be evaluated and the baroreflex therapy modified. The therapy may be modified to improve therapy efficacy, to reduce an impact to the patient and/or to mitigate therapy interactions.

    摘要翻译: 提供无序呼吸治疗的方法包括进行改变患者压力反射反应的电刺激疗法。 无序呼吸治疗可以响应于预测或检测到无序呼吸事件而被传送。 可以评估影响患者的各种状况,并修改压力反射治疗。 可以修改治疗以改善治疗功效,减少对患者的影响和/或减轻治疗相互作用。