Rate adaptive cardiac pacing systems and methods
    7.
    发明授权
    Rate adaptive cardiac pacing systems and methods 有权
    评估自适应心脏起搏系统和方法

    公开(公告)号:US08406879B2

    公开(公告)日:2013-03-26

    申请号:US11613740

    申请日:2006-12-20

    IPC分类号: A61N1/00

    摘要: The invention relates to cardiac rhythm management systems, and more particularly, to rate adaptive cardiac pacing systems and methods. In an embodiment, the invention includes a method for providing rate-adaptive cardiac pacing therapy from an implantable medical device, the method including sensing a pulmonary function of a patient; determining a rate of change in the pulmonary function; sensing a cardiac function of the patient; determining a rate of change in the cardiac function; and calculating a target pacing rate based on an existing pacing rate, the rate of change in the pulmonary function, and the rate of change in the cardiac function.

    摘要翻译: 本发明涉及心律管理系统,更具体地说,涉及适应性心脏起搏系统和方法的速率。 在一个实施例中,本发明包括一种用于从可植入医疗装置提供速率适应性心脏起搏治疗的方法,所述方法包括感测患者的肺功能; 确定肺功能的变化率; 感测患者的心脏功能; 确定心脏功能的变化率; 并且基于现有的起搏速率,肺功能变化率和心脏功能变化率来计算目标起搏速率。

    Rate Adaptive Cardiac Pacing Systems and Methods
    8.
    发明申请
    Rate Adaptive Cardiac Pacing Systems and Methods 有权
    速率自适应心脏起搏系统和方法

    公开(公告)号:US20080154139A1

    公开(公告)日:2008-06-26

    申请号:US11613740

    申请日:2006-12-20

    IPC分类号: A61B5/02

    摘要: The invention relates to cardiac rhythm management systems, and more particularly, to rate adaptive cardiac pacing systems and methods. In an embodiment, the invention includes a method for providing rate-adaptive cardiac pacing therapy from an implantable medical device, the method including sensing a pulmonary function of a patient; determining a rate of change in the pulmonary function; sensing a cardiac function of the patient; determining a rate of change in the cardiac function; and calculating a target pacing rate based on an existing pacing rate, the rate of change in the pulmonary function, and the rate of change in the cardiac function. In an embodiment, the invention includes a method of controlling a cardiac rhythm management device in response to exertion of a patient, the method including sensing the patient's pulmonary function at a first time t1 and at a second time t2; calculating a rate of change of the pulmonary function between time t1 and time t2; sensing the patient's cardiac function at time t3 and t4; calculating a rate of change of the cardiac function between time t3 and time t4; and setting a desired pacing rate. Embodiments of the invention also include cardiac rhythm management devices.

    摘要翻译: 本发明涉及心律管理系统,更具体地说,涉及适应性心脏起搏系统和方法的速率。 在一个实施例中,本发明包括一种用于从可植入医疗装置提供速率适应性心脏起搏治疗的方法,所述方法包括感测患者的肺功能; 确定肺功能的变化率; 感测患者的心脏功能; 确定心脏功能的变化率; 并且基于现有的起搏速率,肺功能变化率和心脏功能变化率来计算目标起搏速率。 在一个实施例中,本发明包括响应于患者的运动来控制心律管理装置的方法,所述方法包括在第一时间t 1>和第二时间感测患者的肺功能 t 2 2; 计算时间t 1和时间t 2之间的肺功能的变化率; 在时间t 3和t 4处感测患者的心脏功能; 计算时间t 3 3和时间t 4之间的心脏功能的变化率; 并设置所需的起搏速率。 本发明的实施例还包括心律管理装置。

    Respiratory parameters for arrhythmia detection and therapy
    9.
    发明授权
    Respiratory parameters for arrhythmia detection and therapy 有权
    心律失常检测和治疗的呼吸参数

    公开(公告)号:US08639324B2

    公开(公告)日:2014-01-28

    申请号:US13353515

    申请日:2012-01-19

    IPC分类号: A61B5/0205 A61N1/365 A61N1/39

    摘要: An implantable or ambulatory medical device can include a cardiac signal sensing circuit configured to provide a sensed cardiac depolarization signal of a heart of a subject, a respiration sensing circuit configured to provide a signal representative of respiration of the subject, and a control circuit communicatively coupled to the cardiac signal sensing circuit and the respiration circuit. The control circuit includes a tachyarrhythmia detection circuit configured to determine heart rate using the depolarization signal, determine a respiration parameter of the subject using the respiration signal, calculate a ratio using the determined heart rate and the determined respiration parameter, generate an indication of tachyarrhythmia when the calculated ratio satisfies a specified detection ratio threshold value, and provide the indication of tachyarrhythmia to a user or process.

    摘要翻译: 植入式或动态医疗装置可以包括心脏信号感测电路,该心脏信号感测电路被配置为提供受检者的心脏的感测的心脏去极化信号,被配置为提供代表对象呼吸的信号的呼吸感测电路,以及通信耦合的控制电路 到心脏信号感测电路和呼吸电路。 控制电路包括快速性心律失常检测电路,其被配置为使用去极化信号来确定心率,使用呼吸信号确定受试者的呼吸参数,使用所确定的心率和确定的呼吸参数来计算比率,产生快速性心律失常的指示, 所计算的比率满足规定的检测率阈值,并向用户或过程提供快速性心律失常的指示。

    Cardiopulmonary functional status assessment via metabolic response detection by implantable cardiac device
    10.
    发明授权
    Cardiopulmonary functional status assessment via metabolic response detection by implantable cardiac device 有权
    通过植入式心脏装置的代谢反应检测的心肺功能状态评估

    公开(公告)号:US08538525B2

    公开(公告)日:2013-09-17

    申请号:US13371705

    申请日:2012-02-13

    IPC分类号: A61N1/00

    摘要: An implantable cardiac device is configured and programmed to assess a patient's cardiopulmonary function by evaluating the patient's minute ventilation response. Such evaluation may be performed by computing a minute ventilation response slope, defined as the ratio of an incremental change in minute ventilation to an incremental change in measured activity level. The minute ventilation response slope may then be compared with a normal range to assess the patient's functional status.

    摘要翻译: 可植入心脏装置被配置和编程以通过评估患者的分钟通气反应来评估患者的心肺功能。 这种评估可以通过计算每分钟通气量的增加变化与测量活动水平的增量变化的比例来计算每分钟通气响应斜率来进行。 然后将分钟通气反应斜率与正常范围进行比较,以评估患者的功能状态。