METHOD AND APPARATUS FOR CONTROLLING CARDIAC THERAPY USING ULTRASOUND TRANSDUCER
    92.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING CARDIAC THERAPY USING ULTRASOUND TRANSDUCER 有权
    使用超声波传感器控制心脏治疗的方法和装置

    公开(公告)号:US20080086036A1

    公开(公告)日:2008-04-10

    申请号:US11539939

    申请日:2006-10-10

    IPC分类号: A61N1/08

    CPC分类号: A61N1/3627 A61N1/36528

    摘要: A cardiac rhythm management (CRM) system provides for post-myocardial infarction (MI) therapy with closed-loop control using one or more ultrasound transducers sensing one or more ultrasound signals indicative of cardiac dimensions. Cardiac size parameters are produced using the one or more ultrasound signals to represent, for example, cardiac chamber diameter, cardiac chamber volume, cardiac wall thickness, infarct size, and degree of change in any of these parameters over time or between measurements. In various embodiments, such cardiac size parameters provide for titration, safety check, and acute optimization of the post-MI therapy.

    摘要翻译: 心律控制(CRM)系统通过使用一个或多个超声换能器感测一个或多个指示心脏尺寸的超声信号,通过闭环控制提供心肌梗死后心肌梗死(MI)治疗。 使用一个或多个超声信号产生心脏尺寸参数,以表示例如心脏室直径,心室容积,心壁厚度,梗塞面积以及随时间或测量之间的任何这些参数的变化程度。 在各种实施方案中,这种心脏尺寸参数提供滴定,安全性检查和MI后治疗的急性优化。

    Method and apparatus for treating irregular ventricular contractions such as during atrial arrhythmia
    93.
    发明授权
    Method and apparatus for treating irregular ventricular contractions such as during atrial arrhythmia 有权
    用于治疗不规则心室收缩的方法和装置,例如在心房心律失常期间

    公开(公告)号:US07062325B1

    公开(公告)日:2006-06-13

    申请号:US09316515

    申请日:1999-05-21

    IPC分类号: A61N1/362

    摘要: A cardiac rhythm management system is capable of treating irregular ventricular heart contractions, such as during atrial tachyarrhythmias such as atrial fibrillation. A first indicated pacing interval is computed based at least partially on a most recent V—V interval duration between ventricular beats and a previous value of the first indicated pacing interval. Pacing therapy is provided based on either the first indicated pacing interval or also based on a second indicated pacing interval, such as a sensor-indicated pacing interval. A weighted averager such as an infinite impulse response (IIR) filter adjusts the first indicated pacing interval for sensed beats and differently adjusts the first indicated pacing interval for paced beats. The system regularizes ventricular rhythms by pacing the ventricle, but inhibits pacing when the ventricular rhythms are stable.

    摘要翻译: 心律管理系统能够治疗不规则的心室心脏收缩,例如在房性快速性心律失常如心房颤动期间。 至少部分地基于心室搏动之间的最新V-V间期持续时间和第一个起搏间隔的先前值来计算第一个起搏间隔。 基于第一个起搏间隔或基于第二个起搏间隔(例如传感器指示的起搏间隔)来提供起搏疗法。 诸如无限脉冲响应(IIR)滤波器的加权平均器调节感测节拍的第一个起搏间隔,并且针对起搏节奏不同地调节第一个起搏间隔。 系统通过起搏心室使心室节律正常化,但是当心室节律稳定时,可抑制起搏。

    Cardiac rhythm management system with atrial shock timing optimization
    94.
    发明授权
    Cardiac rhythm management system with atrial shock timing optimization 失效
    心律节律管理系统与心房休克时序优化

    公开(公告)号:US06430438B1

    公开(公告)日:2002-08-06

    申请号:US09316741

    申请日:1999-05-21

    IPC分类号: A61N139

    摘要: A cardiac rhythm management system includes atrial shock timing optimization. Because an atrial tachyarrhythmia, such as atrial fibrillation typically causes significant variability in the ventricular heart rate, resulting in potentially proarrhythmic conditions. The system avoids delivering atrial cardioversion/defibrillation therapy during potentially proarrhythmic conditions because doing so could result in dangerous ventricular arrhythmias. Using Ventricular Rate Regularization (“VRR”) techniques, the system actively stabilizes the ventricular heart rate to obtain less potentially proarrhythmic conditions for delivering the atrial tachyarrhythmia therapy. The intrinsic ventricular heart rate is stabilized at a variable VRR-indicated rate, computed using an infinite impulse response (IIR) filter, and based on the underlying intrinsic ventricular heart rate. The system withholds delivery of atrial cardioversion/defibrillation therapy until the intervals between ventricular beats (“V-V intervals”) meet certain criteria that decrease the chance that the atrial cardioversion/defibrillation therapy will induce a ventricular arrhythmia.

    摘要翻译: 心律管理系统包括心房休克时序优化。 因为房性心律失常,例如心房颤动,通常会导致心室心率的显着变异,导致潜在的心律失常症状。 该系统避免在潜在的心律失常症状期间进行心房复律/除颤治疗,因为这样做可能导致危险的室性心律失常。 使用心室率正常化(“VRR”)技术,该系统主动地稳定心室心率以获得较少的用于递送心房快速性心律失常治疗的潜在致心律失常状况。 使用无限脉冲响应(IIR)滤波器,并且基于潜在的内部心室心率计算,内在心室心率以可变的VRR指示速率被稳定。 系统禁止心房复律/除颤治疗,直到心室搏动之间的间隔(“V-V间隔”)符合某些标准,可降低心房复律/除颤疗法诱发室性心律失常的机会。

    Determining blood gas saturation based on measured parameter of respiration
    98.
    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。

    Detection of Disordered Breathing
    99.
    发明申请
    Detection of Disordered Breathing 有权
    检测无序呼吸

    公开(公告)号:US20100324438A1

    公开(公告)日:2010-12-23

    申请号:US12847711

    申请日:2010-07-30

    IPC分类号: A61B5/08

    摘要: Devices and methods for detecting disordered breathing involve determining that the patient is asleep and sensing one or more signals associated with disordered breathing indicative of sleep-disordered breathing while the patient is asleep. Sleep-disordered breathing is detected using the sensed signals associated with disordered breathing. The sensed signals associated with disordered breathing may also be used to acquire a respiration pattern of one or more respiration cycles. Characteristics of the respiration pattern are determined. The respiration pattern is classified as a disordered breathing episode based on the characteristics of the respiration pattern. One or more processes involved in the detection of disordered breathing are performed using an implantable device.

    摘要翻译: 用于检测无序呼吸的装置和方法涉及确定患者睡着并且感测与患者睡着时指示睡眠呼吸紊乱的无序呼吸相关联的一个或多个信号。 使用与无序呼吸相关的感测信号来检测睡眠呼吸障碍。 与无序呼吸相关联的感测信号也可用于获取一个或多个呼吸循环的呼吸模式。 确定呼吸模式的特征。 根据呼吸模式的特点,呼吸模式被分类为无序呼吸发作。 使用可植入装置进行涉及无序呼吸检测的一个或多个过程。