Method and apparatus for third heart sound detection
    51.
    发明申请
    Method and apparatus for third heart sound detection 有权
    第三心音检测方法及装置

    公开(公告)号:US20090018461A1

    公开(公告)日:2009-01-15

    申请号:US12283760

    申请日:2008-09-16

    IPC分类号: A61B5/02

    CPC分类号: A61B7/04

    摘要: A cardiac rhythm management system includes a heart sound detector providing for detection of the third heart sounds (S3). An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including the second heart sounds (S2) and S3. The heart sound detector detects occurrences of S2 and starts S3 detection windows each after a predetermined delay after a detected occurrence of S2. The occurrences of S3 are then detected from the acoustic signal within the S3 detection windows.

    摘要翻译: 心律管理系统包括提供检测第三心音的心音检测器(S3)。 诸如加速度计或麦克风的可植入传感器感测指示包括第二心音(S2)和S3的心音的声信号。 心音检测器检测到S2的发生,并且在检测到S2发生之后经过预定延迟之后开始S3检测窗口。 然后从S3检测窗口内的声信号检测S3的出现。

    Method and apparatus for third heart sound detection
    52.
    发明授权
    Method and apparatus for third heart sound detection 有权
    第三心音检测方法及装置

    公开(公告)号:US07431699B2

    公开(公告)日:2008-10-07

    申请号:US10746853

    申请日:2003-12-24

    IPC分类号: A61B5/02

    CPC分类号: A61B7/04

    摘要: A cardiac rhythm management system includes a heart sound detector providing for detection of the third heart sounds (S3). An implantable sensor such as an accelerometer or a microphone senses an acoustic signal indicative heart sounds including the second heart sounds (S2) and S3. The heart sound detector detects occurrences of S2 and starts S3 detection windows each after a predetermined delay after a detected occurrence of S2. The occurrences of S3 are then detected from the acoustic signal within the S3 detection windows.

    摘要翻译: 心律管理系统包括用于检测第三心音的心音检测器(S 3)。 诸如加速度计或麦克风的可植入传感器感测到指示包括第二心音(S 2)和S 3的心音的声信号。 心音检测器检测到S 2的发生,并且在检测到的S 2发生之后,在预定延迟之后开始S 3检测窗口。 然后从S 3检测窗口内的声信号检测出S 3的出现。

    Ischemia detection using a heart sound sensor
    56.
    发明授权
    Ischemia detection using a heart sound sensor 有权
    使用心脏声音传感器进行缺血检测

    公开(公告)号:US07922669B2

    公开(公告)日:2011-04-12

    申请号:US11148107

    申请日:2005-06-08

    IPC分类号: A61B5/02

    摘要: A system comprising an implantable medical device (IMD) includes an implantable heart sound sensor to produce an electrical signal representative of at least one heart sound. The heart sound is associated with mechanical activity of a patient's heart. Additionally, the IMD includes a heart sound sensor interface circuit coupled to the heart sound sensor to produce a heart sound signal, and a signal analyzer circuit coupled to the heart sound sensor interface circuit. The signal analyzer circuit measures a baseline heart sound signal, and deems that an ischemic event has occurred using, among other things, a measured subsequent change in the heart sound signal from the established baseline heart sound signal.

    摘要翻译: 包括可植入医疗装置(IMD)的系统包括可植入心音传感器,以产生代表至少一个心音的电信号。 心脏声音与患者心脏的机械活动有关。 另外,IMD包括耦合到心脏声音传感器以产生心脏声音信号的心脏声音传感器接口电路,以及耦合到心脏声音传感器接口电路的信号分析器电路。 信号分析器电路测量基线心音信号,并且认为已经发生了缺血事件,其中使用来自已建立的基线心音信号的心音信号的测量后续变化。

    ISCHEMIA DETECTION USING A HEART SOUND SENSOR
    57.
    发明申请
    ISCHEMIA DETECTION USING A HEART SOUND SENSOR 有权
    使用心音传感器进行ISCHEMIA检测

    公开(公告)号:US20090287106A1

    公开(公告)日:2009-11-19

    申请号:US12510962

    申请日:2009-07-28

    IPC分类号: A61B5/02

    摘要: A system comprising an implantable medical device (IMD) includes an implantable heart sound sensor to produce an electrical signal representative of at least one heart sound. The heart sound is associated with mechanical activity of a patient's heart. Additionally, the IMD includes a heart sound sensor interface circuit coupled to the heart sound sensor to produce a heart sound signal, and a signal analyzer circuit coupled to the heart sound sensor interface circuit. The signal analyzer circuit measures a baseline heart sound signal, and deems that an ischemic event has occurred using, among other things, a measured subsequent change in the heart sound signal from the established baseline heart sound signal.

    摘要翻译: 包括可植入医疗装置(IMD)的系统包括可植入心音传感器,以产生代表至少一个心音的电信号。 心脏声音与患者心脏的机械活动有关。 另外,IMD包括耦合到心脏声音传感器以产生心脏声音信号的心脏声音传感器接口电路,以及耦合到心脏声音传感器接口电路的信号分析器电路。 信号分析器电路测量基线心音信号,并且认为已经发生了缺血事件,其中使用来自已建立的基线心音信号的心音信号的测量后续变化。

    Assessment of pulmonary vascular resistance via pulmonary artery pressure
    58.
    发明授权
    Assessment of pulmonary vascular resistance via pulmonary artery pressure 有权
    通过肺动脉压力评估肺血管阻力

    公开(公告)号:US08632470B2

    公开(公告)日:2014-01-21

    申请号:US12566432

    申请日:2009-09-24

    IPC分类号: A61B5/02

    CPC分类号: A61B5/0215 A61B5/02007

    摘要: Methods and systems for assessing pulmonary or systemic vascular resistance in a patient using pressure measurements are disclosed. An illustrative method of measuring pulmonary vascular resistance includes electrically inducing a retrograde pressure pulse within the heart, sensing at least one arterial pressure parameter in response to the retrograde pressure pulse using a pressure sensor located within a pulmonary artery, and computing a value of the pulmonary vascular resistance using the at least one sensed arterial pressure parameter. Data from multiple pulmonary vascular resistance assessments can be taken over an extended period of time within the patient to aid in detecting an underlying cardiac or pulmonary condition such as cardiogenic pulmonary edema.

    摘要翻译: 公开了使用压力测量来评估患者肺或全身血管阻力的方法和系统。 测量肺血管阻力的示例性方法包括电诱导心脏内的逆行压力脉冲,使用位于肺动脉内的压力传感器响应于逆行压力脉冲感测至少一个动脉压参数,以及计算肺动脉压 使用所述至少一个感测到的动脉压参数的血管阻力。 来自多个肺血管阻力评估的数据可以在患者内延长的时间段内进行,以帮助检测潜在的心脏或肺部疾病如心源性肺水肿。

    System and method for detection of HF decompensation based on signs and symptoms
    60.
    发明授权
    System and method for detection of HF decompensation based on signs and symptoms 有权
    基于体征和症状检测HF失代偿的系统和方法

    公开(公告)号:US08319648B2

    公开(公告)日:2012-11-27

    申请号:US12563882

    申请日:2009-09-21

    IPC分类号: G08B23/00

    摘要: In an example, physiologic information about a patient can be obtained and mapped to a first set of fuzzy logic membership functions, and a symptom status can be derived from the mapping of the physiologic information using a first fuzzy logic inference. In an example, the symptom status can be mapped to a second set of fuzzy logic membership functions, and a disease status can be derived from the mapping of the symptom status to the second set of fuzzy logic membership functions using a second fuzzy logic inference.

    摘要翻译: 在一个示例中,可以获得关于患者的生理信息并将其映射到第一组模糊逻辑隶属函数,并且可以使用第一模糊逻辑推断从生理信息的映射导出症状状态。 在一个示例中,症状状态可被映射到第二组模糊逻辑隶属函数,并且可以使用第二模糊逻辑推理从症状状态与第二组模糊逻辑隶属函数的映射导出疾病状态。