Algorithm for the automatic determination of optimal AV and VV intervals
    1.
    发明授权
    Algorithm for the automatic determination of optimal AV and VV intervals 有权
    自动确定最佳AV和VV间隔的算法

    公开(公告)号:US08135463B2

    公开(公告)日:2012-03-13

    申请号:US11751250

    申请日:2007-05-21

    IPC分类号: A61N1/00

    摘要: Methods and devices for determining optimal Atrial to Ventricular (AV) pacing intervals and Ventricular to Ventricular (VV) delay intervals in order to optimize cardiac output. Impedance, preferably sub-threshold impedance, is measured across the heart at selected cardiac cycle times as a measure of chamber expansion or contraction. One embodiment measures impedance over a long AV interval to obtain the minimum impedance, indicative of maximum ventricular expansion, in order to set the AV interval. Another embodiment measures impedance change over a cycle and varies the AV pace interval in a binary search to converge on the AV interval causing maximum impedance change indicative of maximum ventricular output. Another method varies the right ventricle to left ventricle (VV) interval to converge on an impedance maximum indicative of minimum cardiac volume at end systole. Another embodiment varies the VV interval to maximize impedance change.

    摘要翻译: 用于确定最佳心房与心室(AV)起搏间隔和心室间室(VV)延迟间隔的方法和装置,以优化心输出量。 在选择的心脏周期时间内,跨心脏测量阻抗,优选亚阈值阻抗,作为腔室扩张或收缩的量度。 为了设定AV间隔,一个实施例测量长AV间隔上的阻抗以获得指示最大心室扩张的最小阻抗。 另一个实施例测量一个周期的阻抗变化,并且改变二进制搜索中的AV步速间隔以收敛于AV间隔,从而引起指示最大心室输出的最大阻抗变化。 另一种方法将右心室改变为左心室(VV)间隔,以收敛于指示最终心脏收缩最小心脏容积的阻抗最大值。 另一实施例改变VV间隔以最大化阻抗变化。

    ALGORITHM FOR THE AUTOMATIC DETERMINATION OF OPTIMAL AV AND VV INTERVALS
    3.
    发明申请
    ALGORITHM FOR THE AUTOMATIC DETERMINATION OF OPTIMAL AV AND VV INTERVALS 有权
    用于自动确定最佳AV和VV间隔的算法

    公开(公告)号:US20120150253A1

    公开(公告)日:2012-06-14

    申请号:US13400381

    申请日:2012-02-20

    IPC分类号: A61N1/365

    摘要: Methods and devices for determining optimal Atrial to Ventricular (AV) pacing intervals and Ventricular to Ventricular (VV) delay intervals in order to optimize cardiac output. Impedance, preferably sub-threshold impedance, is measured across the heart at selected cardiac cycle times as a measure of chamber expansion or contraction. One embodiment measures impedance over a long AV interval to obtain the minimum impedance, indicative of maximum ventricular expansion, in order to set the AV interval. Another embodiment measures impedance change over a cycle and varies the AV pace interval in a binary search to converge on the AV interval causing maximum impedance change indicative of maximum ventricular output. Another method varies the right ventricle to left ventricle (VV) interval to converge on an impedance maximum indicative of minimum cardiac volume at end systole. Another embodiment varies the VV interval to maximize impedance change.

    摘要翻译: 用于确定最佳心房与心室(AV)起搏间隔和心室间室(VV)延迟间隔的方法和装置,以优化心输出量。 在选择的心脏周期时间内,跨心脏测量阻抗,优选亚阈值阻抗,作为腔室扩张或收缩的量度。 为了设定AV间隔,一个实施例测量长AV间隔上的阻抗以获得指示最大心室扩张的最小阻抗。 另一个实施例测量一个周期的阻抗变化,并且改变二进制搜索中的AV步速间隔以收敛于AV间隔,从而引起指示最大心室输出的最大阻抗变化。 另一种方法将右心室改变为左心室(VV)间隔,以收敛于指示最终心脏收缩最小心脏容积的阻抗最大值。 另一实施例改变VV间隔以最大化阻抗变化。

    Algorithm for the automatic determination of optimal AV an VV intervals
    4.
    发明授权
    Algorithm for the automatic determination of optimal AV an VV intervals 有权
    用于自动确定最佳AV的VV间隔的算法

    公开(公告)号:US07228174B2

    公开(公告)日:2007-06-05

    申请号:US10135912

    申请日:2002-04-29

    IPC分类号: A61N1/362

    摘要: Methods and devices for determining optimal Atrial to Ventricular (AV) pacing intervals and Ventricular to Ventricular (VV) delay intervals in order to optimize cardiac output. Impedance, preferably sub-threshold impedance, is measured across the heart at selected cardiac cycle times as a measure of chamber expansion or contraction. One embodiment measures impedance over a long AV interval to obtain the minimum impedance, indicative of maximum ventricular expansion, in order to set the AV interval. Another embodiment measures impedance change over a cycle and varies the AV pace interval in a binary search to converge on the AV interval causing maximum impedance change indicative of maximum ventricular output. Another method varies the right ventricle to left ventricle (VV) interval to converge on an impedance maximum indicative of minimum cardiac volume at end systole. Another embodiment varies the VV interval to maximize impedance change.

    摘要翻译: 用于确定最佳心房与心室(AV)起搏间隔和心室间室(VV)延迟间隔的方法和装置,以优化心输出量。 在选择的心脏周期时间内,跨心脏测量阻抗,优选亚阈值阻抗,作为腔室扩张或收缩的量度。 为了设定AV间隔,一个实施例测量长AV间隔上的阻抗以获得指示最大心室扩张的最小阻抗。 另一个实施例测量一个周期的阻抗变化,并且改变二进制搜索中的AV步速间隔以收敛于AV间隔,从而引起指示最大心室输出的最大阻抗变化。 另一种方法将右心室改变为左心室(VV)间隔,以收敛于指示最终心脏收缩最小心脏容积的阻抗最大值。 另一实施例改变VV间隔以最大化阻抗变化。

    Algorithm for the automatic determination of optimal pacing intervals
    5.
    发明授权
    Algorithm for the automatic determination of optimal pacing intervals 失效
    自动确定最佳起搏间隔的算法

    公开(公告)号:US07711423B2

    公开(公告)日:2010-05-04

    申请号:US11135921

    申请日:2005-05-24

    IPC分类号: A61N1/362

    CPC分类号: A61N1/36521

    摘要: Impedance, e.g. sub-threshold impedance, is measured across the heart at selected cardiac cycle times as a measure of chamber expansion or contraction. One embodiment measures impedance over a long AV interval to obtain the minimum impedance, indicative of maximum ventricular expansion, in order to set the AV interval. Another embodiment measures impedance change over a cycle and varies the AV pace interval in a binary search to converge on the AV interval causing maximum impedance change indicative of maximum ventricular output. Another method varies the right ventricle to left ventricle (VV) interval to converge on an impedance maximum indicative of minimum cardiac volume at end systole. Another embodiment varies the VV interval to maximize impedance change. Other methods vary the AA interval to maximize impedance change over the entire cardiac cycle or during the atrial cycle.

    摘要翻译: 阻抗,例如 亚阈值阻抗是在选定心脏周期时间内心脏测量的,作为腔室扩张或收缩的量度。 为了设定AV间隔,一个实施例测量长AV间隔上的阻抗以获得指示最大心室扩张的最小阻抗。 另一个实施例测量一个周期的阻抗变化,并且改变二进制搜索中的AV步速间隔以收敛于AV间隔,从而引起指示最大心室输出的最大阻抗变化。 另一种方法将右心室改变为左心室(VV)间隔,以收敛于指示最终心脏收缩最小心脏容积的阻抗最大值。 另一实施例改变VV间隔以最大化阻抗变化。 其他方法改变AA间隔以最大化整个心动周期或心房周期期间的阻抗变化。

    Method and apparatus for detecting respiratory disturbances
    6.
    发明授权
    Method and apparatus for detecting respiratory disturbances 有权
    用于检测呼吸障碍的方法和装置

    公开(公告)号:US07524292B2

    公开(公告)日:2009-04-28

    申请号:US11565092

    申请日:2006-11-30

    摘要: A system and method for monitoring respiration including sensing a signal that varies with respiration, deriving a respiration parameter, applying criteria for detecting a respiration disturbance and determining one or more respiratory disturbance metrics. The system preferably includes an implantable sensor with an associated implantable medical device such that chronic respiration monitoring is possible. The implantable medical device may execute methods for detecting and measuring respiratory disturbances or may store data to be transferred to an external device for detecting and measuring respiratory disturbances. Respiratory disturbance detection may trigger a responsive action such as physiological data storage, a change in therapy delivery, or a clinician warning. Assessment of cardiac function may be made based on metrics of respiratory disturbances or a measure of circulatory delay time following detection of a respiratory disturbance.

    摘要翻译: 一种用于监测呼吸的系统和方法,包括感测随呼吸变化的信号,导出呼吸参数,应用用于检测呼吸障碍的标准和确定一个或多个呼吸障碍度量。 该系统优选地包括具有相关联的可植入医疗装置的可植入传感器,使得可以进行慢性呼吸监测。 可植入医疗装置可以执行用于检测和测量呼吸障碍的方法,或者可以将要传送到外部设备的数据存储以检测和测量呼吸障碍。 呼吸道干扰检测可能会触发响应动作,如生理数据存储,治疗传递的变化或临床医生的警告。 心脏功能的评估可以基于呼吸紊乱的度量或检测到呼吸障碍之后的循环延迟时间的量度进行。

    Method and apparatus for detecting respiratory disturbances
    7.
    发明授权
    Method and apparatus for detecting respiratory disturbances 有权
    用于检测呼吸障碍的方法和装置

    公开(公告)号:US07160252B2

    公开(公告)日:2007-01-09

    申请号:US10419467

    申请日:2003-04-21

    IPC分类号: A61B5/02 A61B5/05 A61B5/00

    摘要: A system and method for monitoring respiration including sensing a signal that varies with respiration, deriving a respiration parameter, applying criteria for detecting a respiration disturbance and determining one or more respiratory disturbance metrics. The system preferably includes an implantable sensor with an associated implantable medical device such that chronic respiration monitoring is possible. The implantable medical device may execute methods for detecting and measuring respiratory disturbances or may store data to be transferred to an external device for detecting and measuring respiratory disturbances. Respiratory disturbance detection may trigger a responsive action such as physiological data storage, a change in therapy delivery, or a clinician warning. Assessment of cardiac function may be made based on metrics of respiratory disturbances or a measure of circulatory delay time following detection of a respiratory disturbance.

    摘要翻译: 一种用于监测呼吸的系统和方法,包括感测随呼吸变化的信号,导出呼吸参数,应用用于检测呼吸障碍的标准和确定一个或多个呼吸障碍度量。 该系统优选地包括具有相关联的可植入医疗装置的可植入传感器,使得可以进行慢性呼吸监测。 可植入医疗装置可以执行用于检测和测量呼吸障碍的方法,或者可以将要传送到外部设备的数据存储以检测和测量呼吸障碍。 呼吸道干扰检测可能会触发响应动作,如生理数据存储,治疗传递的变化或临床医生的警告。 心脏功能的评估可以基于呼吸紊乱的度量或检测到呼吸障碍之后的循环延迟时间的量度进行。