Pacer with combined defibrillator tailored for bradycardia patients
    91.
    发明申请
    Pacer with combined defibrillator tailored for bradycardia patients 失效
    步行者联合除颤器为心动过缓患者量身打造

    公开(公告)号:US20060036288A1

    公开(公告)日:2006-02-16

    申请号:US10921777

    申请日:2004-08-18

    IPC分类号: A61N1/39

    CPC分类号: A61N1/3956 A61N1/3962

    摘要: This document discusses, among other things, a combination pacer/defibrillator that is tailored for bradycardia patients. In one example, its shock-delivery specificity exceeds its sensitivity to shockable ventricular tachyarrhythmias. In another example, its specificity exceeds 95%, or 99%, or even 99.5%. Sensitivity is programmed to a high desired sensitivity value, but only if it can be done without decreasing the specificity below the desired specificity threshold value. This can be conceptualized as “avoiding at all costs” delivering false shocks, even at the expense of failing to deliver a shock to a treatable ventricular tachyarrhythmia. Specificity enhancements include, among other things, inhibiting shock delivery when the patient is breathing or not supine, using multiple channels or a high rate VT/VF detection threshold. The present pacer/defibrillator device could potentially save the lives of bradyarrhythmia patients who are not presently clinically indicated for a defibrillator/pacer, but who have an increased risk of sudden cardiac death due to one or more risk factors.

    摘要翻译: 本文件还讨论了针对心动过缓患者定制的组合起搏器/除颤器。 在一个例子中,其冲击传递特异性超过其对可震荡室性快速性心律失常的敏感性。 在另一个实例中,其特异性超过95%,或99%,甚至99.5%。 灵敏度被编程为高期望的灵敏度值,但是只有在不降低低于所需特异性阈值的特异性的情况下才能进行。 这可以被概念化为“不惜一切代价”,提供虚假的冲击,即使以不能对可治疗的室性快速性心律失常发生冲击为代价。 特异性增强包括,当患者呼吸或不仰卧时,使用多个通道或高速率的VT / VF检测阈值来抑制冲击输送。 本发明的起搏器/除颤器装置可能潜在地节省目前临床指示用于除颤器/止痛器但是由于一个或多个危险因素引起的心脏猝死风险增加的缓慢心律失常患者的生命。

    System and method for selection of morphology templates
    92.
    发明申请
    System and method for selection of morphology templates 有权
    用于选择形态学模板的系统和方法

    公开(公告)号:US20050192506A1

    公开(公告)日:2005-09-01

    申请号:US10787540

    申请日:2004-02-26

    IPC分类号: A61B5/0402

    CPC分类号: A61B5/0402

    摘要: A template selection method involves providing a plurality of templates representing a type of cardiac event. One or more characteristics of each template are evaluated. The evaluations are compared and a template is selected as a current template based on the comparison.

    摘要翻译: 模板选择方法包括提供表示心脏事件类型的多个模板。 评估每个模板的一个或多个特征。 比较评估,并根据比较选择模板作为当前模板。

    Cardiac cycle synchronized sampling of impedance signal
    93.
    发明申请
    Cardiac cycle synchronized sampling of impedance signal 有权
    心脏周期同步采样阻抗信号

    公开(公告)号:US20050004610A1

    公开(公告)日:2005-01-06

    申请号:US10612388

    申请日:2003-07-02

    申请人: Jaeho Kim Quan Ni

    发明人: Jaeho Kim Quan Ni

    IPC分类号: A61N1/365

    摘要: A cardiac rhythm management device for obtaining transthoracic impedance. The device comprises a sensor for obtaining a signal indicative of an action of a heart, an impedance measurement circuit adapted to measure transthoracic impedance and a processor for utilizing the signal indicative of the action of the heart to sample the transthoracic impedance at sampling intervals commenced by fiducial markers in the signal indicative of the action of the heart, where the sampling of the impedance signal removes the component of a stroke volume of the heart from the signal and thereby provides lung ventilation information.

    摘要翻译: 用于获得经胸阻抗的心律管理装置。 该装置包括用于获得指示心脏动作的信号的传感器,适于测量经胸阻抗的阻抗测量电路,以及用于利用指示心脏作用的信号以采样间隔采样经脉管阻抗的处理器,采样间隔由 指示心脏动作的信号中的基准标记,其中阻抗信号的采样从信号中去除心脏的搏动体积的分量,从而提供肺通气信息。

    System for detecting atrial fibrillation notwithstanding high and
variable ventricular rates
    94.
    发明授权
    System for detecting atrial fibrillation notwithstanding high and variable ventricular rates 失效
    用于检测心房颤动的系统,尽管具有高和可变的心室率

    公开(公告)号:US5827197A

    公开(公告)日:1998-10-27

    申请号:US970879

    申请日:1997-11-14

    IPC分类号: A61N1/39

    CPC分类号: A61N1/3956 A61N1/395

    摘要: There is disclosed an implantable atrial defibrillator for applying cardioverting electrical energy to the atria of a heart when the atria are in need of cardioversion. The atrial defibrillator includes a sense channel adapted to be associated with at least one atrium of the heart to provide a cardiac signal during a plurality of cardiac cycles of the heart and a timer which determines a cardiac interval duration for each of the cardiac cycles. The defibrillator further includes an atrial detector for analyzing the cardiac signal provided by the sense channel during selected ones of the cardiac cycles wherein each one of the selected ones of the cardiac cycles has a cardiac interval greater than a predetermined duration. A cardioverter applies cardioverting electrical energy to the atria responsive to the atrial detector detecting atrial fibrillation of the heart.

    摘要翻译: 公开了一种可植入心房除颤器,用于当心房需要心脏复律时,将心电图转移到心脏的心房。 心房除颤器包括适于与心脏的至少一个心房相关联的感测通道,以在心脏的多个心脏周期期间提供心脏信号,以及确定每个心动周期的心脏间隔持续时间的定时器。 除颤器还包括心脏检测器,用于在所选择的心脏周期期间分析由感测通道提供的心脏信号,其中所选心脏周期中的每一个具有大于预定持续时间的心脏间隔。 心律转复器根据心房检测器检测心脏心房颤动,向心房施加心脏转复电能。

    Apparatus and method for calculating the selectivity of a range query for multidimensional data
    96.
    发明授权
    Apparatus and method for calculating the selectivity of a range query for multidimensional data 有权
    用于计算多维数据范围查询的选择性的装置和方法

    公开(公告)号:US08843525B2

    公开(公告)日:2014-09-23

    申请号:US13222754

    申请日:2011-08-31

    IPC分类号: G06F7/00 G06F17/30

    CPC分类号: G06F17/30592 G06F17/30469

    摘要: An apparatus and method for calculating the selectivity of a range query for multidimensional data using a multidimensional histogram are provided. A data space may be partitioned into one or more sub-spaces based on a sum of skew values of the one or more sub-spaces, a space-partitioning tree may be generated for the data space, and a multidimensional histogram may be generated for the data space based on the space-partitioning tree. A range query for multidimensional data may be processed based on the multidimensional histogram.

    摘要翻译: 提供了一种使用多维直方图计算多维数据范围查询的选择性的装置和方法。 可以基于一个或多个子空间的偏差值的和来将数据空间划分为一个或多个子空间,可以为数据空间生成空间划分树,并且可以生成多维直方图 基于空间分区树的数据空间。 可以基于多维直方图来处理多维数据的范围查询。

    Cardiac response classification using multiple classification windows
    97.
    发明授权
    Cardiac response classification using multiple classification windows 有权
    使用多个分类窗口的心脏反应分类

    公开(公告)号:US08831726B2

    公开(公告)日:2014-09-09

    申请号:US12008876

    申请日:2008-01-15

    IPC分类号: A61B5/0452 A61B5/00 A61N1/37

    摘要: Methods and devices for classifying a cardiac response to pacing involve establishing a plurality of classification windows relative to and following a pacing pulse. One or more characteristics of a cardiac signal sensed following the pacing pulse are detected within one or more particular classification windows. The characteristics may be compared to one or more references. Classification of the cardiac response may be performed based on the comparison of the one or more characteristics to the one or more references and the particular classification windows in which the one or more characteristics are detected.

    摘要翻译: 用于将心脏反应分类为起搏的方法和装置涉及建立相对于起搏脉冲和起搏脉冲之后的多个分类窗口。 在一个或多个特定分类窗口中检测到在起搏脉冲之后感测的心脏信号的一个或多个特征。 特征可以与一个或多个参考进行比较。 心脏反应的分类可以基于一个或多个特征与一个或多个参考和检测到一个或多个特征的特定分类窗口的比较来执行。

    Dual sensing for brady-tachy pacemaker/ICD
    99.
    发明授权
    Dual sensing for brady-tachy pacemaker/ICD 有权
    双重感觉用于快速起搏器/ ICD

    公开(公告)号:US08688203B2

    公开(公告)日:2014-04-01

    申请号:US12621925

    申请日:2009-11-19

    IPC分类号: A61B5/0464

    摘要: A system detects events related to cardiac activity. The system comprises a primary cardiac signal sensing circuit, at least one secondary cardiac signal sensing circuit having a higher sensitivity than the primary sensing circuit, and a controller circuit coupled to the primary and secondary cardiac signal sensing circuits. The controller circuit determines a rate of depolarization using the primary sensing circuit and detects tachyarrhythmia using the rate. The controller circuit also detects tachyarrhythmia using the secondary sensing circuit and also deems the tachyarrhythmia valid if the controller circuit detects the tachyarrhythmia using both the primary and secondary sensing circuit.

    摘要翻译: 系统检测与心脏活动相关的事件。 所述系统包括主要心脏信号感测电路,至少一个具有比初级感测电路更高灵敏度的次级心脏信号感测电路,以及耦合到主要和次要心脏信号感测电路的控制器电路。 控制器电路使用主感测电路确定去极化率,并使用该速率检测快速性心律失常。 控制器电路还使用次级感测电路检测快速性心律失常,并且如果控制器电路使用主感测电路和次感测电路检测到快速性心律失常,则认为快速性心律失常是有效的。

    Method and apparatus for rate accuracy enhancement in ventricular tachycardia detection
    100.
    发明授权
    Method and apparatus for rate accuracy enhancement in ventricular tachycardia detection 有权
    室性心动过速检测中速率准确度增强的方法和装置

    公开(公告)号:US08644918B2

    公开(公告)日:2014-02-04

    申请号:US12871337

    申请日:2010-08-30

    IPC分类号: A61B5/0464

    CPC分类号: A61N1/3962 A61N1/3622

    摘要: An implantable cardioverter/defibrillator (ICD) executes a rate accuracy enhancement algorithm to select measured atrial and ventricular intervals for classifying a detected tachycardia based on average atrial and ventricular rates calculated from the selected atrial and ventricular intervals. The detected tachycardia is classified as ventricular tachycardia (VT) if the average ventricular rate is substantially higher than the average atrial rate.

    摘要翻译: 植入式心脏复律/除颤器(ICD)执行速率精度增强算法,以根据从所选择的心房和心室间隔计算的平均心房和心室率来选择测量的心房和心室间隔以分类检测到的心动过速。 如果平均心室率显着高于平均心房率,则检测到的心动过速分类为室性心动过速(VT)。