Calibration of impedance monitoring of respiratory volumes using thoracic D.C. impedance
    61.
    发明授权
    Calibration of impedance monitoring of respiratory volumes using thoracic D.C. impedance 有权
    使用胸部直流阻抗校正阻抗监测呼吸体积

    公开(公告)号:US07603170B2

    公开(公告)日:2009-10-13

    申请号:US11114661

    申请日:2005-04-26

    IPC分类号: A61B5/05 A61B5/08

    摘要: A system includes an implantable medical device that includes a trans-thoracic impedance measurement circuit providing a trans-thoracic impedance signal of a subject. A controller is coupled to the trans-thoracic impedance circuit. The controller extracts a respiration signal from the trans-thoracic impedance signal, measures a breathing volume of the subject using the amplitude of the respiration signal and a breathing volume calibration factor, computes an adjusted breathing volume calibration factor using a reference baseline value of the trans-thoracic impedance and a measured baseline value of the trans-thoracic impedance, and computes a calibrated breathing volume using the adjusted breathing volume calibration factor.

    摘要翻译: 一种系统包括可植入医疗装置,其包括提供受试者的胸部阻抗信号的跨胸阻抗测量电路。 控制器耦合到跨胸阻抗电路。 控制器从胸部阻抗信号中提取呼吸信号,使用呼吸信号的幅度和呼吸音量校准因子来测量受试者的呼吸体积,使用反式信号的参考基准值计算调整后的呼吸量校准因子 胸廓阻抗和经胸阻抗的测量基线值,并使用调整后的呼吸量校准因子计算校准呼吸量。

    Reduction of interaction with tachyarrhythmia detection by negative offset pacing
    63.
    发明授权
    Reduction of interaction with tachyarrhythmia detection by negative offset pacing 有权
    通过负偏移起搏减少与快速性心律失常检测的相互作用

    公开(公告)号:US07546160B2

    公开(公告)日:2009-06-09

    申请号:US11276031

    申请日:2006-02-10

    IPC分类号: A61N1/08 A61N1/37 A61N1/362

    CPC分类号: A61N1/3622

    摘要: A device and method is disclosed for improving tachyarrhythmia detection when the ventricles are resynchronized by delivering paces to both ventricles separated by a specified negative offset interval. Timing of escape intervals and tachyarrhythmia detection is based upon senses from one of the ventricles designated as a rate ventricle. Techniques are presented for preventing tachyarrhythmia detection from being compromised when the rate ventricle is paced after the other ventricle.

    摘要翻译: 公开了一种用于改善心律失常检测的装置和方法,当通过将指定的负偏移间隔分开的两个心室递送步调来再同步时,心律失常检测。 逃避间隔和快速性心律失常检测的时间是基于指定为速率心室的心室之一的感觉。 提出技术用于在速率心室在另一脑室之后起搏时预防快速性心律失常检测受到损害。

    METHOD AND APPARATUS FOR TREATING IRREGULAR VENTRICULAR CONTRACTIONS SUCH AS DURING ATRIAL ARRHYTHMIA
    64.
    发明申请
    METHOD AND APPARATUS FOR TREATING IRREGULAR VENTRICULAR CONTRACTIONS SUCH AS DURING ATRIAL ARRHYTHMIA 有权
    方法和装置,用于治疗非正常血管造影,如阿司匹林

    公开(公告)号:US20090076563A1

    公开(公告)日:2009-03-19

    申请号:US12325887

    申请日:2008-12-01

    IPC分类号: A61N1/368

    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。

    MEDICAL DEVICE ELECTRODES HAVING CELLS DISPOSED ON NANOSTRUCTURES
    65.
    发明申请
    MEDICAL DEVICE ELECTRODES HAVING CELLS DISPOSED ON NANOSTRUCTURES 失效
    具有纳米结构处理细胞的医疗器械电极

    公开(公告)号:US20090062894A1

    公开(公告)日:2009-03-05

    申请号:US11846280

    申请日:2007-08-28

    IPC分类号: A61N1/05

    CPC分类号: A61N1/05 A61N1/0565

    摘要: Electrodes for tissue stimulation and sensing can comprise a support with nanostructures disposed on the support. Pairs of the electrodes can be placed in close proximity to one another. When electrical energy is supplied to the electrodes, an electrical field (and possibly an electrical current) can be established between the nanostructures on the electrodes. The nanostructures may have cells disposed thereon, for example myocardial cells, myocardial progenitor cells, neural cells and/or stem cells. In addition, the electrodes can be arranged in arrays.

    摘要翻译: 用于组织刺激和感测的电极可以包括具有设置在支撑体上的纳米结构的支撑体。 电极对可以彼此靠近放置。 当向电极提供电能时,可以在电极上的纳米结构之间建立电场(和可能的电流)。 纳米结构可以具有设置在其上的细胞,例如心肌细胞,心肌祖细胞,神经细胞和/或干细胞。 此外,电极可以排列成阵列。

    Closed loop cardiac resynchronization therapy using cardiac activation sequence information
    66.
    发明授权
    Closed loop cardiac resynchronization therapy using cardiac activation sequence information 有权
    闭环心脏再同步治疗使用心脏激活序列信息

    公开(公告)号:US07457664B2

    公开(公告)日:2008-11-25

    申请号:US11125068

    申请日:2005-05-09

    IPC分类号: A61N1/365

    摘要: Cardiac monitoring and/or stimulation methods and systems that provide one or more of monitoring, diagnosing, defibrillation, and pacing. Cardiac signal separation is employed to detect, monitor, track, and/or trend closed-loop cardiac resynchronization therapy using cardiac activation sequence information. Devices and methods involve sensing a plurality of composite cardiac signals using a plurality of electrodes, the electrodes configured for implantation in a patient. A source separation is performed using the sensed plurality of composite cardiac signals, producing one or more cardiac signal vectors associated with all or a portion of one or more cardiac activation sequences. A cardiac resynchronization therapy is adjusted using one or both of the one or more cardiac signal vectors and the signals associated with the one or more cardiac signal vectors. In further embodiments, the cardiac resynchronization therapy may be initiated, terminated, or one or more parameters of the resynchronization therapy may be altered.

    摘要翻译: 提供一种或多种监测,诊断,除颤和起搏的心脏监测和/或刺激方法和系统。 心脏信号分离用于使用心脏激活序列信息来检测,监测,跟踪和/或趋向闭环心脏再同步治疗。 设备和方法包括使用多个电极感测多个复合心脏信号,所述电极被配置用于植入患者体内。 使用所感测的多个复合心脏信号进行源分离,产生与一个或多个心脏激活序列的全部或一部分相关联的一个或多个心脏信号载体。 使用一个或多个心脏信号向量和与一个或多个心脏信号载体相关联的信号中的一个或两个来调整心脏再同步治疗。 在另外的实施方案中,心脏再同步治疗可以被启动,终止,或者可以改变再同步治疗的一个或多个参数。

    SYSTEM AND METHOD FOR DISPLAYING A HISTOGRAM OF CARDIAC EVENTS
    67.
    发明申请
    SYSTEM AND METHOD FOR DISPLAYING A HISTOGRAM OF CARDIAC EVENTS 有权
    用于显示心脏事件组织的系统和方法

    公开(公告)号:US20080269827A1

    公开(公告)日:2008-10-30

    申请号:US12169432

    申请日:2008-07-08

    IPC分类号: A61N1/08

    摘要: Systems, devices and methods are provided for displaying statistical distributions of cardiac events. A device embodiment comprises circuitry adapted to communicate with a medical device that is adapted to acquire data regarding cardiac events occurring at two or more cardiac sites, and display means for displaying a histogram of the data as two or more statistical distributions for the two or more cardiac sites. The histogram includes a number of histogram bins. At least one of the histogram bins includes both a representation for at least a portion of a statistical distribution of a cardiac event for a first cardiac site and a representation for at least a portion of a statistical distribution of a cardiac event for a second cardiac site. Other embodiments are provided herein.

    摘要翻译: 提供系统,设备和方法来显示心脏事件的统计分布。 设备实施例包括适于与适于获取关于在两个或更多个心脏部位发生的心脏事件的数据的医疗设备通信的电路,以及用于将数据的直方图显示为两个或更多个的两个或多个统计分布的显示装置 心脏部位。 直方图包括多个柱状图仓。 直方图箱中的至少一个包括用于第一心脏位点的心脏事件的统计分布的至少一部分的表示和用于第二心脏位点的心脏事件的统计分布的至少一部分的表示 。 本文提供了其他实施例。

    USING RESPIRATION DISTRESS MANIFESTATIONS FOR HEART FAILURE DETECTION
    68.
    发明申请
    USING RESPIRATION DISTRESS MANIFESTATIONS FOR HEART FAILURE DETECTION 有权
    使用呼吸部分心理失调检测

    公开(公告)号:US20080262360A1

    公开(公告)日:2008-10-23

    申请号:US11736058

    申请日:2007-04-17

    IPC分类号: A61B5/0205

    摘要: Systems and methods for diagnosing one or more respiration distress manifestations by implantably recognizing their occurrence and evaluating information about the same to provide an indication of present or impending worsening heart failure are discussed. Using information produced by an implantable respiration sensor circuit and an implantable physiological sensor circuit, such as at least one of a physical activity sensor circuit or a posture sensor circuit, an implantable or external processor circuit may detect a respiration disturbance and an associated subsequent arousal from stable state occurrence and thereafter evaluate over time arousal from stable state occurrences to provide the indication of present or impending worsening heart failure. In one example, information about a fluid level within a subject is used in determining the indication of worsening heart failure. In various examples, a regimen is initiated or adjusted in response to the indication of present or impending worsening heart failure.

    摘要翻译: 讨论了通过可植入地识别其发生并评估关于其的信息来诊断一种或多种呼吸困扰表现的系统和方法,以提供现在或即将恶化的心力衰竭的指征。 使用由可植入呼吸传感器电路和植入式生理传感器电路产生的信息,例如物理活动传感器电路或姿势传感器电路中的至少一个,可植入或外部处理器电路可以检测呼吸障碍和相关联的随后的唤醒 稳定状态发生,然后评估来自稳定状态发生的随着时间的兴奋,以提供目前或即将恶化的心力衰竭的指征。 在一个示例中,关于受试者内的液位水平的信息用于确定恶化的心力衰竭的指示。 在各种实例中,响应于目前或即将恶化的心力衰竭的指征开始或调整方案。

    Pulmonary Artery Pressure Signals And Methods of Using
    69.
    发明申请
    Pulmonary Artery Pressure Signals And Methods of Using 审中-公开
    肺动脉压力信号和使用方法

    公开(公告)号:US20080243016A1

    公开(公告)日:2008-10-02

    申请号:US11692687

    申请日:2007-03-28

    IPC分类号: A61B5/00 A61B5/08

    摘要: Embodiments of the invention are related to methods and systems for using a pulmonary artery pressure signal to detect and/or monitor physiological parameters, physiological status, and aspects of disorders and diseases, amongst other things. In an embodiment, the invention includes a method of measuring a pulmonary function parameter of a patient. In an embodiment, the invention includes a method of detecting a sleeping disorder. In an embodiment, the invention includes a method of tracking sleep characteristics of a patient. Other aspects and embodiments are provided herein.

    摘要翻译: 本发明的实施例涉及用于使用肺动脉压力信号来检测和/或监测生理参数,生理状况以及紊乱和疾病方面的方法和系统。 在一个实施例中,本发明包括测量患者的肺功能参数的方法。 在一个实施例中,本发明包括一种检测睡眠障碍的方法。 在一个实施例中,本发明包括跟踪患者的睡眠特征的方法。 本文提供了其它方面和实施例。

    System and method for cardiac rhythm management with synchronized pacing protection period
    70.
    发明授权
    System and method for cardiac rhythm management with synchronized pacing protection period 有权
    同步起搏保护期心律管理系统及方法

    公开(公告)号:US07403818B2

    公开(公告)日:2008-07-22

    申请号:US10987256

    申请日:2004-11-12

    IPC分类号: A61N1/368

    CPC分类号: A61N1/3627 A61N1/3684

    摘要: A device and method for cardiac rhythm management in which a heart chamber is paced in accordance with a pacing mode that employs sense signals from the opposite chamber. A protection period triggered by the sensing of intrinsic activity in the paced chamber is used to inhibit pacing without otherwise disturbing the pacing algorithm.

    摘要翻译: 一种用于心律管理的装置和方法,其中心室根据采用来自相对室的感测信号的起搏模式而起搏。 通过感觉起搏室内部活动触发的保护期限被用于抑制起搏而不打扰起搏算法。