Methods and apparatus for preventing atrial arrhythmias by overdrive pacing and prolonging atrial refractoriness using an implantable cardiac stimulation device
    1.
    发明授权
    Methods and apparatus for preventing atrial arrhythmias by overdrive pacing and prolonging atrial refractoriness using an implantable cardiac stimulation device 有权
    使用可植入心脏刺激装置通过过度起搏预防房性心律失常和延长心房不应性的方法和装置

    公开(公告)号:US06606517B1

    公开(公告)日:2003-08-12

    申请号:US09548293

    申请日:2000-04-12

    IPC分类号: A61N1362

    CPC分类号: A61N1/3622

    摘要: A method and apparatus for reducing the incidence of atrial arrhythmias by using an overdrive algorithm to determine the application of overdrive stimulation pulses to a patient's heart, e.g., in the atria. In a first aspect of the invention, the apparatus first determines an overdrive pacing rate and then applies pairs of temporally spaced (staggered) pacing pulses, i.e., primary and secondary pacing pulses, at the determined overdrive pacing rate. In a further aspect of the invention, the pairs of pacing pulses are applied at the overdrive pacing rate to multiple spatially spaced electrodes, i.e., electrodes distributed among multiple sites in a patient's heart, e.g., in the atria. In accordance with a first preferred embodiment, the electrodes may be distributed within a single atrium, e.g., the right atrium, of the patient's heart. Alternatively, a first electrode may be placed in the right atrium and a second electrode may be placed in the coronary sinus or the left atrium or multiple electrodes may be placed proximate to the left atrium. Furthermore, the invention relates to techniques for controlling overdrive pacing to multiple sites in a patient's heart so as to achieve and maintain a target degree of pacing and thus suppress tachycardias.

    摘要翻译: 一种用于通过使用过驱动算法来确定过度驱动刺激脉冲施加到患者心脏(例如在心房)中来减少心房心律失常发生率的方法和装置。 在本发明的第一方面中,装置首先确定过驱动起搏速率,然后以确定的超速起搏速率施加时间间隔(交错)的起搏脉冲,即初级和次级起搏脉冲。 在本发明的另一方面,以超速起搏速率将多对起搏脉冲施加到多个空间间隔开的电极,即分布在患者心脏中的多个部位之间的电极,例如在心房中。 根据第一优选实施例,电极可以分布在患者心脏的单个心房(例如右心房)内。 或者,第一电极可以放置在右心房中,并且第二电极可以放置在冠状窦或左心房中,或者多个电极可以放置在靠近左心房的位置。 此外,本发明涉及用于控制对患者心脏中的多个部位的超速起搏的技术,以便实现和维持目标起搏程度,从而抑制心动过速。

    Methods and apparatus for preventing atrial arrhythmias by overdrive pacing multiple heart tissue sites using an implantable cardiac stimulation device

    公开(公告)号:US07103411B1

    公开(公告)日:2006-09-05

    申请号:US10206483

    申请日:2002-07-26

    IPC分类号: A61N1/368

    CPC分类号: A61N1/3622 A61N1/3684

    摘要: Techniques are described for pacing multiple sites in a patient's heart using overdrive pacing the heart using a pacemaker including techniques where the overdrive pacing rate only increases when at least two intrinsic beats are detected within a determined search period. In one specific technique, an increase in the pacing rate occurs only if two P-waves are detected within X cardiac cycles. In another specific technique, the overdrive pacing rate is increased only if at least two P-waves are detected within a block of N cardiac cycles. In both techniques, the overdrive pacing rate is decreased if no increase has occurred in the last Z cardiac cycles. By increasing the overdrive pacing rate only in response to detection of at least two P-waves within a determined number of cardiac cycles, an excessively high overdrive pacing rate is avoided. Other techniques are described for adaptively adjusting overdrive pacing parameters so as to achieve a determined target degree of pacing of, for example, 95% paced beats. By adaptively adjusting overdrive parameters to maintain a target degree of pacing, the average overdrive pacing rate is minimized while still maintaining a high number of paced beats, thereby reducing the risk of a tachyarrhythmia occurring within the patient.

    Methods and apparatus for preventing atrial arrhythmias by overdrive pacing multiple heart tissue sites using an implantable cardiac stimulation device
    3.
    发明授权
    Methods and apparatus for preventing atrial arrhythmias by overdrive pacing multiple heart tissue sites using an implantable cardiac stimulation device 有权
    使用可植入心脏刺激装置通过超速起搏多个心脏组织部位预防房性心律失常的方法和装置

    公开(公告)号:US06510342B1

    公开(公告)日:2003-01-21

    申请号:US09548116

    申请日:2000-04-12

    IPC分类号: A61N1368

    CPC分类号: A61N1/3622 A61N1/3684

    摘要: Techniques are described for pacing multiple sites in a patient's heart using overdrive pacing the heart using a pacemaker including techniques where the overdrive pacing rate only increases when at least two intrinsic beats are detected within a determined search period. In one specific technique, an increase in the pacing rate occurs only if two P-waves are detected within X cardiac cycles. In another specific technique, the overdrive pacing rate is increased only if at least two P-waves are detected within a block of N cardiac cycles. In both techniques, the overdrive pacing rate is decreased if no increase has occurred in the last Z cardiac cycles. By increasing the overdrive pacing rate only in response to detection of at least two P-waves within a determined number of cardiac cycles, an excessively high overdrive pacing rate is avoided. Other techniques are described for adaptively adjusting overdrive pacing parameters so as to achieve a determined target degree of pacing of, for example, 95% paced beats. By adaptively adjusting overdrive parameters to maintain a target degree of pacing, the average overdrive pacing rate is minimized while still maintaining a high number of paced beats, thereby reducing the risk of a tachyarrhythmia occurring within the patient.

    摘要翻译: 描述了用于使用起搏器使用超速起搏心脏起搏心脏多个部位的技术,其包括其中在确定的搜索周期内检测到至少两个固有节拍时,超速起搏速率仅增加的技术。 在一种特定技术中,只有在X个心动周期内检测到两个P波时,起搏速率才会增加。 在另一个具体技术中,只有在N个心动周期的块内检测到至少两个P波时,才能增加超速起搏速率。 在两种技术中,如果在最后Z个心动周期中没有发生增加,则超速起搏速率将降低。 通过仅在确定的心跳周期内响应于至少两个P波的检测来增加超速起搏速率,避免了过高的超速起搏速率。 描述了用于自适应地调节过驱动起搏参数的其它技术,以便实现例如95%起搏节拍的确定的目标起搏程度。 通过自适应地调整过驱动参数以保持目标起搏程度,平均超速起搏速度最小化,同时仍然保持大量的起搏节奏,从而降低患者内出现快速性心律失常的风险。

    Methods and apparatus for overdrive pacing heart tissue using an implantable cardiac stimulation device

    公开(公告)号:US07043302B1

    公开(公告)日:2006-05-09

    申请号:US10323380

    申请日:2002-12-18

    IPC分类号: A61N1/08

    CPC分类号: A61N1/368

    摘要: Techniques are described for overdrive pacing the heart using a pacemaker wherein the overdrive pacing rate only increases when at least two intrinsic beats are detected within a determined search period. In one specific technique, an increase in the pacing rate occurs only if two P-waves are detected within X cardiac cycles. In another specific technique, the overdrive pacing rate is increased only if at least two P-waves are detected within a block of N cardiac cycles. In both techniques, the overdrive pacing rate is decreased if no increase has occurred in the last Z cardiac cycles. By increasing the overdrive pacing rate only in response to detection of at least two P-waves within a determined number of cardiac cycles, an excessively high overdrive pacing rate is avoided. Other techniques are described for adaptively adjusting overdrive pacing parameters so as to achieve a determined target degree of pacing of, for example, 95% paced beats. By adaptively adjusting overdrive parameters to maintain a target degree of pacing, the average overdrive pacing rate is minimized while still maintaining a high number of paced beats, thereby reducing the risk of a tachyarrhythmia occurring within the patient.

    Methods and apparatus for overdrive pacing heat tissue using an implantable cardiac stimulation device
    5.
    发明授权
    Methods and apparatus for overdrive pacing heat tissue using an implantable cardiac stimulation device 有权
    使用可植入心脏刺激装置的超速起搏热组织的方法和装置

    公开(公告)号:US06804556B1

    公开(公告)日:2004-10-12

    申请号:US10036026

    申请日:2001-12-21

    IPC分类号: A61N1365

    CPC分类号: A61N1/368

    摘要: Techniques are described for overdrive pacing the heart using a pacemaker wherein the overdrive pacing rate only increases when at least two intrinsic beats are detected within a determined search period. In one specific technique, an increase in the pacing rate occurs only if two P-waves are detected within X cardiac cycles. In another specific technique, the overdrive pacing rate is increased only if at least two P-waves are detected within a block of N cardiac cycles. In both techniques, the overdrive pacing rate is decreased if no increase has occurred in the last Z cardiac cycles. By increasing the overdrive pacing rate only in response to detection of at least two P-waves within a determined number of cardiac cycles, an excessively high overdrive pacing rate is avoided. Other techniques are described for adaptively adjusting overdrive pacing parameters so as to achieve a determined target degree of pacing of, for example, 95% paced beats. By adaptively adjusting overdrive parameters to maintain a target degree of pacing, the average overdrive pacing rate is minimized while still maintaining a high number of paced beats, thereby reducing the risk of a tachyarrhythmia occurring within the patient.

    摘要翻译: 描述了使用起搏器超速起搏心脏的技术,其中在确定的搜索周期内检测到至少两个固有节拍时,超速起搏速率仅增加。 在一种特定技术中,只有在X个心动周期内检测到两个P波时,起搏速率才会增加。 在另一个具体技术中,只有在N个心动周期的块内检测到至少两个P波时,才能增加超速起搏速率。 在两种技术中,如果在最后Z个心动周期中没有发生增加,则超速起搏速率将降低。 通过仅在确定的心跳周期内响应于至少两个P波的检测来增加超速起搏速率,避免了过高的超速起搏速率。 描述了用于自适应地调节过驱动起搏参数的其它技术,以便实现例如95%起搏节拍的确定的目标起搏程度。 通过自适应地调整过驱动参数以保持目标起搏程度,平均超速起搏速度最小化,同时仍然保持大量的起搏节奏,从而降低患者内出现快速性心律失常的风险。

    Implantable cardiac stimulation system and method for automatic capture verification calibration
    6.
    发明授权
    Implantable cardiac stimulation system and method for automatic capture verification calibration 有权
    植入式心脏刺激系统和自动捕获验证校准方法

    公开(公告)号:US06731985B2

    公开(公告)日:2004-05-04

    申请号:US09981555

    申请日:2001-10-16

    IPC分类号: A61N1362

    CPC分类号: A61N1/3712

    摘要: An implantable cardiac stimulation device and associated method perform an automatic calibration procedure for evaluating whether automatic capture verification can be recommended. The calibration procedure calculates and displays a number of variables for use by a medical practitioner in programming automatic capture operating parameters. An average paced depolarization integral (PDI) is determined from the cardiac signals following delivery of multiple stimulation pulse below and above capture threshold such that both pure lead polarization signals and evoked response signals may be analyzed. From the paced depolarization integral data, a capture threshold, a stimulation response curve, a minimum evoked response, a maximum lead polarization, an evoked response sensitivity, an evoked response safety margin, and a polarization safety margin are determined. Based on these variables, the calibration procedure determines if automatic capture verification can be recommended. If so, the stimulation device calculates a capture detection threshold. The automatic capture verification recommendation and the estimated calibration variables are displayed.

    摘要翻译: 可植入心脏刺激装置和相关方法执行自动校准程序,以评估是否可以推荐自动捕获验证。 校准程序计算并显示许多变量,供医生在编程自动捕获操作参数时使用。 平均节奏去极化积分(PDI)是在多次刺激脉冲传递后低于和高于捕获阈值的心脏信号确定的,以便可以分析纯铅极化信号和诱发响应信号。 从起搏去极化积分数据中,确定捕获阈值,刺激响应曲线,最小诱发响应,最大引线极化,诱发响应灵敏度,诱发响应安全裕度和极化安全裕度。 基于这些变量,校准过程确定是否可以推荐自动捕获验证。 如果是,则刺激装置计算捕获检测阈值。 显示自动捕获验证建议和估计的校准变量。

    Methods and apparatus for overdrive pacing heart tissue using an implantable cardiac stimulation device
    7.
    发明授权
    Methods and apparatus for overdrive pacing heart tissue using an implantable cardiac stimulation device 有权
    使用可植入心脏刺激装置的超速起搏心脏组织的方法和装置

    公开(公告)号:US06990374B1

    公开(公告)日:2006-01-24

    申请号:US10117757

    申请日:2002-04-04

    IPC分类号: A61N1/362

    CPC分类号: A61N1/368

    摘要: Techniques are described for overdrive pacing the heart using a pacemaker. Other techniques are described for adaptively adjusting overdrive pacing parameters so as to achieve a determined target degree of pacing of, for example, 95% paced beats. By adaptively adjusting overdrive parameters to maintain a target degree of pacing, the average overdrive pacing rate is minimized while still maintaining a high number of paced beats, thereby reducing the risk of a tachyarrhythmia occurring within the patient. Still other techniques are described for increasing an overdrive pacing rate by an amount related to a current overdrive pacing rate.

    摘要翻译: 描述了使用起搏器超速起搏心脏的技术。 描述了用于自适应地调节过驱动起搏参数的其它技术,以便实现例如95%起搏节拍的确定的目标起搏程度。 通过自适应地调整过驱动参数以保持目标起搏程度,平均超速起搏速度最小化,同时仍然保持大量的起搏节奏,从而降低患者内出现快速性心律失常的风险。 描述了另外一些技术,用于增加超速起搏速率与当前超速起搏速率相关的量。

    Methods and apparatus for overdrive pacing heart tissue using an implantable cardiac stimulation device
    8.
    发明授权
    Methods and apparatus for overdrive pacing heart tissue using an implantable cardiac stimulation device 有权
    使用可植入心脏刺激装置的超速起搏心脏组织的方法和装置

    公开(公告)号:US06519493B1

    公开(公告)日:2003-02-11

    申请号:US09471788

    申请日:1999-12-23

    IPC分类号: A61N136

    CPC分类号: A61N1/368

    摘要: Techniques are described for overdrive pacing the heart using a pacemaker wherein the overdrive pacing rate only increases when at least two intrinsic beats are detected within a determined search period. In one specific technique, an increase in the pacing rate occurs only if two P-waves are detected within X cardiac cycles. In another specific technique, the overdrive pacing rate is increased only if at least two P-waves are detected within a block of N cardiac cycles. In both techniques, the overdrive pacing rate is decreased if no increase has occurred in the last Z cardiac cycles. By increasing the overdrive pacing rate only in response to detection of at least two P-waves within a determined number of cardiac cycles, an excessively high overdrive pacing rate is avoided. Other techniques are described for adaptively adjusting overdrive pacing parameters so as to achieve a determined target degree of pacing of, for example, 95% paced beats. By adaptively adjusting overdrive parameters to maintain a target degree of pacing, the average overdrive pacing rate is minimized while still maintaining a high number of paced beats, thereby reducing the risk of a tachyarrhythmia occurring within the patient.

    摘要翻译: 描述了使用起搏器超速起搏心脏的技术,其中在确定的搜索周期内检测到至少两个固有节拍时,超速起搏速率仅增加。 在一种特定技术中,只有在X个心动周期内检测到两个P波时,起搏速率才会增加。 在另一个具体技术中,只有在N个心动周期的块内检测到至少两个P波时,才能增加超速起搏速率。 在两种技术中,如果在最后Z个心动周期中没有发生增加,则超速起搏速率将降低。 通过仅在确定的心跳周期内响应于至少两个P波的检测来增加超速起搏速率,避免了过高的超速起搏速率。 描述了用于自适应地调节过驱动起搏参数的其它技术,以便实现例如95%起搏节拍的确定的目标起搏程度。 通过自适应地调整过驱动参数以保持目标起搏程度,平均超速起搏速度最小化,同时仍然保持大量的起搏节奏,从而降低患者内出现快速性心律失常的风险。

    Implantable cardiac stimulation device for and method of monitoring progression or regression of a patient's heart condition by monitoring ventricular repolarization interval dispersion
    9.
    发明授权
    Implantable cardiac stimulation device for and method of monitoring progression or regression of a patient's heart condition by monitoring ventricular repolarization interval dispersion 有权
    可植入式心脏刺激装置及监测患者心脏病状进展或回归的方法,通过监测心室复极间隔分散

    公开(公告)号:US06456880B1

    公开(公告)日:2002-09-24

    申请号:US09712861

    申请日:2000-11-14

    IPC分类号: A61N1365

    CPC分类号: A61N1/3702 A61N1/365

    摘要: An implantable cardiac stimulation device includes a system that monitors progression or regression of a patient's heart condition. The system includes a plurality of electrode configurations for sensing cardiac activity of the heart. A sensing circuit provides an electrical signal representing electrical activity of the heart from each of the sensing electrode configurations. A processor coupled to the sensing circuit determines, at spaced apart times, and over time, a ventricular repolarization interval in each of the electrical signals and a corresponding ventricular repolarization interval dispersion. A memory stores the ventricular repolarization interval dispersions for transmission by a telemetry circuit to an external receiver for analysis.

    摘要翻译: 可植入心脏刺激装置包括监测患者心脏状况的进展或消退的系统。 该系统包括用于感测心脏的心脏活动的多个电极配置。 感测电路从每个感测电极配置提供表示心脏的电活动的电信号。 耦合到感测电路的处理器在间隔开的时间和时间上确定每个电信号中的心室复极间隔和对应的心室复极间隔分散。 存储器存储用于通过遥测电路传输到外部接收器用于分析的心室复极间隔分散体。

    Implantable cardiac stimulation device and method for prolonging atrial refractoriness
    10.
    发明授权
    Implantable cardiac stimulation device and method for prolonging atrial refractoriness 失效
    植入式心脏刺激装置及延长心房不应性的方法

    公开(公告)号:US06701187B1

    公开(公告)日:2004-03-02

    申请号:US10061567

    申请日:2002-02-01

    IPC分类号: A61N1362

    CPC分类号: A61N1/3622 A61N1/3956

    摘要: An implantable cardiac stimulation device, e.g., a pacemaker or an implantable cardioverter defibrillator (ICD), is provided which prolongs the atrial refractoriness of a heart. The implantable cardiac stimulation device includes a generator that delivers pacing pulses to an atrium of a heart and a detector that detects atrial activations of the heart. An inhibitor is coupled to the detector that inhibits the generator when an atrial activation is detected within an escape interval. A generator control coupled to the generator causes the generator to deliver a primary pacing pulse to the atrium at the end of the escape interval, absent an atrial activation being detected within the escape interval, and causes the generator to deliver a secondary pacing pulse to the atrium a delay time after an atrial activation is detected within the escape interval or the delivery of a primary pacing pulse to the atrium.

    摘要翻译: 提供可植入心脏刺激装置,例如起搏器或植入式心律转复除颤器(ICD),其延长心脏的心房不应性。 可植入心脏刺激装置包括将起搏脉冲传送到心脏心房的发生器和检测心脏心房激活的检测器。 当在逃避间隔内检测到心房激活时,抑制剂耦合到检测器,该检测器抑制发生器。 耦合到发生器的发生器控制器使得发生器在逃逸间隔结束时将主起搏脉冲递送到心房,没有在逃逸间隔内检测到心房激活,并且使得发生器将辅助起搏脉冲输送到 在转移间隔内检测到心房激活之后的延迟时间或者向心房传送初级起搏脉冲。