Thoracic or intracardiac impedance detection with automatic vector selection
    31.
    发明授权
    Thoracic or intracardiac impedance detection with automatic vector selection 有权
    胸部或心内阻抗检测与自动矢量选择

    公开(公告)号:US08014860B2

    公开(公告)日:2011-09-06

    申请号:US12612204

    申请日:2009-11-04

    IPC分类号: A61B5/053 A61B5/0295

    摘要: Vector selection is automatically achieved via a thoracic or intracardiac impedance signal collected in a cardiac function management device or other implantable medical device that includes a test mode and a diagnostic mode. During a test mode, the device cycles through various electrode configurations for collecting thoracic impedance data. At least one figure of merit is calculated from the impedance data for each such electrode configuration. In one example, only non-arrhythmic beats are used for computing the figure of merit. A particular electrode configuration is automatically selected using the figure of merit. During a diagnostic mode, the device collects impedance data using the selected electrode configuration. In one example, the figure of merit includes a ratio of a cardiac stroke amplitude and a respiration amplitude. Other examples of the figure of merit are also described.

    摘要翻译: 矢量选择通过收集在包括测试模式和诊断模式的心脏功能管理装置或其他可植入医疗装置中的胸部或心内阻抗信号自动实现。 在测试模式期间,器件循环通过各种电极配置来收集胸部阻抗数据。 从每个这样的电极配置的阻抗数据计算至少一个品质因数。 在一个例子中,仅使用非心律失常节拍来计算品质因数。 使用品质因数自动选择特定的电极配置。 在诊断模式下,设备使用所选择的电极配置收集阻抗数据。 在一个示例中,品质因数包括心搏幅度和呼吸振幅的比值。 还描述了品质因数的其它实例。

    Therapy control based on the rate of change of intracardiac impedance
    33.
    发明授权
    Therapy control based on the rate of change of intracardiac impedance 有权
    基于心内阻抗变化率的治疗控制

    公开(公告)号:US07953485B2

    公开(公告)日:2011-05-31

    申请号:US12105219

    申请日:2008-04-17

    IPC分类号: A61N1/362

    CPC分类号: A61N1/36521 A61N1/30

    摘要: A system comprising a medical device that includes an impedance measurement circuit adapted to be coupled to implantable electrodes to obtain an intracardiac impedance signal between electrodes, a therapy circuit operable to deliver a therapy to a subject, and a controller circuit coupled to the impedance measurement circuit and the therapy circuit. The controller circuit determines a time rate of change of the intracardiac impedance signal and adjusts at least one parameter related to therapy in a manner that alters the rate of change.

    摘要翻译: 一种包括医疗装置的系统,该医疗装置包括阻抗测量电路,该阻抗测量电路适于耦合到可植入电极以获得电极之间的心内阻抗信号,可操作以将治疗递送给受试者的治疗电路,以及耦合到所述阻抗测量电路 和治疗电路。 控制器电路确定心内阻抗信号的时间变化率,并且以改变变化率的方式调节与治疗相关的至少一个参数。

    Snoring detection system and method
    36.
    发明授权
    Snoring detection system and method 有权
    打鼾检测系统及方法

    公开(公告)号:US07532934B2

    公开(公告)日:2009-05-12

    申请号:US10943071

    申请日:2004-09-15

    IPC分类号: A61N1/40

    摘要: Systems and methods provide for detecting snoring, and for determining the presence of sleep disordered breathing using detected snoring. Snoring indicative signals generated by one or more patient-internal or external sensors are detected. The presence of sleep disordered breathing is algorithmically determined, patient-internally or externally, using the snoring signals. Algorithmically determining presence of sleep disordered breathing may include computing a snoring index developed from the detected snoring. Sleep apnea may be detected using the snoring index. Sleep apnea may be verified using internal or external sensors. A positive airway pressure device may operate cooperatively to verify and treat sleep disordered breathing.

    摘要翻译: 系统和方法提供检测打鼾,并使用检测到的打鼾来确定睡眠呼吸障碍的存在。 检测由一个或多个患者内部或外部传感器产生的打鼾指示信号。 睡眠无序呼吸的存在是使用打鼾信号在数学上由患者内部或外部确定的。 算法确定睡眠呼吸障碍的存在可以包括计算从检测到的打鼾中产生的打鼾指数。 可以使用打鼾指数检测睡眠呼吸暂停。 可以使用内部或外部传感器验证睡眠呼吸暂停。 正气道压力装置可以协同操作以验证和治疗睡眠呼吸紊乱。

    Determining blood gas saturation based on measured parameter of respiration
    37.
    发明授权
    Determining blood gas saturation based on measured parameter of respiration 有权
    根据呼吸测量参数确定血气饱和度

    公开(公告)号:US07479114B2

    公开(公告)日:2009-01-20

    申请号:US11291480

    申请日:2005-12-01

    IPC分类号: A61B5/08

    摘要: Systems and methods provide for determining blood gas saturation based on one or more measured respiration parameters. A parameter of respiration is measured implantably over a duration of time. The measured respiratory parameter is associated with a blood gas saturation level. Blood gas saturation is determined based on the measured respiration parameter. At least one of associating the measured respiratory parameter and determining blood gas saturation is preferably preformed implantably.

    摘要翻译: 系统和方法提供了基于一个或多个测量的呼吸参数来确定血液气体饱和度。 在一段时间内可植入式地测量呼吸参数。 测量的呼吸参数与血气饱和度水平相关。 基于测量的呼吸参数确定血气饱和度。 关联测量的呼吸参数和确定血液气体饱和度中的至少一个优选地可植入地预先形成。

    THERAPY CONTROL BASED ON THE RATE OF CHANGE OF INTRACARDIAC IMPEDANCE
    39.
    发明申请
    THERAPY CONTROL BASED ON THE RATE OF CHANGE OF INTRACARDIAC IMPEDANCE 有权
    基于内皮抑素变化率的治疗控制

    公开(公告)号:US20080249583A1

    公开(公告)日:2008-10-09

    申请号:US12105219

    申请日:2008-04-17

    IPC分类号: A61N1/368

    CPC分类号: A61N1/36521 A61N1/30

    摘要: A system comprising a medical device that includes an impedance measurement circuit adapted to be coupled to implantable electrodes to obtain an intracardiac impedance signal between electrodes, a therapy circuit operable to deliver a therapy to a subject, and a controller circuit coupled to the impedance measurement circuit and the therapy circuit. The controller circuit determines a time rate of change of the intracardiac impedance signal and adjusts at least one parameter related to therapy in a manner that alters the rate of change.

    摘要翻译: 一种包括医疗装置的系统,该医疗装置包括阻抗测量电路,该阻抗测量电路适于耦合到可植入电极以获得电极之间的心内阻抗信号,可操作以将治疗递送给受试者的治疗电路,以及耦合到所述阻抗测量电路 和治疗电路。 控制器电路确定心内阻抗信号的时间变化率,并且以改变变化率的方式调节与治疗相关的至少一个参数。