Methods and systems for characterizing cardiac signal morphology using K-fit analysis
    22.
    发明授权
    Methods and systems for characterizing cardiac signal morphology using K-fit analysis 有权
    使用K-fit分析来表征心脏信号形态的方法和系统

    公开(公告)号:US08483808B2

    公开(公告)日:2013-07-09

    申请号:US12879147

    申请日:2010-09-10

    IPC分类号: A61N5/0472 A61B5/0452

    CPC分类号: A61B5/04525 G06K9/00536

    摘要: A system and method for automatically analyzing a cardiac signal, including the step of providing an episode database on a computer storage medium including a plurality of episode data records of one or more patients. Each episode data record includes a cardiac signal from at least one data-generating device. The method also includes the step of selecting one or more of the N beats to be one or more beat templates, for at least a first cardiac signal having N beats. Another step is determining a value K for the cardiac signal using a computer system where K beat templates can represent all the N beats in the cardiac signal.

    摘要翻译: 一种用于自动分析心脏信号的系统和方法,包括在包括一个或多个患者的多个发作数据记录的计算机存储介质上提供情节数据库的步骤。 每个剧集数据记录包括来自至少一个数据生成装置的心脏信号。 该方法还包括为至少具有N次拍子的第一个心脏信号选择N个节拍中的一个或多个作为一个或多个节拍模板的步骤。 另一步是使用计算机系统确定心脏信号的值K,其中K搏动模板可以表示心脏信号中的所有N个搏动。

    Process for the Preparation of Ranolazine
    23.
    发明申请
    Process for the Preparation of Ranolazine 审中-公开
    雷诺嗪的制备方法

    公开(公告)号:US20130090475A1

    公开(公告)日:2013-04-11

    申请号:US13704379

    申请日:2010-12-02

    IPC分类号: C07D295/15

    CPC分类号: C07D295/15 A61K31/495

    摘要: A process for the preparation of ranolazine comprises the step of condensing N-(2,6-dimethylphenyl)-1-piperazinyl acetamide with a compound of formula (I) to obtain ranolazine, in which X is chlorine or bromine Ranolazine is prepared by condensing ring-opening halide which replaces epoxide in this process.

    摘要翻译: 制备雷诺嗪的方法包括将N-(2,6-二甲基苯基)-1-哌嗪基乙酰胺与式(I)化合物缩合以获得雷诺嗪的步骤,其中X是氯或溴。 在此过程中取代环氧化物的开环卤化物。

    Dynamic selection of algorithms for arrhythmia detection
    25.
    发明授权
    Dynamic selection of algorithms for arrhythmia detection 有权
    动态选择心律失常检测算法

    公开(公告)号:US08285371B2

    公开(公告)日:2012-10-09

    申请号:US12754955

    申请日:2010-04-06

    IPC分类号: A61B5/02

    摘要: An apparatus comprises a first implantable sensor produces a first electrical sensor signal representative of cardiac depolarization events of a heart of a subject, a second implantable sensor that produces a second electrical sensor signal representative of hemodynamic function of the heart, a signal analyzer circuit, and an arrhythmia discrimination circuit. The signal analyzer circuit detects an arrhythmic event from the first sensor signal and calculates hemodynamic stability in response to the arrhythmic event detection using the second sensor signal. The arrhythmia discrimination circuit selects, according to a calculated hemodynamic stability produced by the signal analyzer circuit, an arrhythmia discrimination algorithm from among a plurality of candidate arrhythmia discrimination algorithms that are implementable by the arrhythmia discrimination circuit, classifies the detected arrhythmia using the selected arrhythmia discrimination algorithm, and provides the arrhythmia classification to a user or process.

    摘要翻译: 一种装置包括第一可植入传感器产生代表受试者心脏的心脏去极化事件的第一电传感器信号,产生代表心脏的血液动力学功能的第二电传感器信号的第二可植入传感器,信号分析仪电路和 心律失常鉴别电路。 信号分析器电路检测来自第一传感器信号的心律不齐事件,并且响应于使用第二传感器信号的心律不齐事件检测来计算血流动力学稳定性。 心律失常鉴别电路根据由信号分析仪电路产生的计算出的血液动力学稳定性选择可由心律失常鉴别电路实施的多种候选心律失常辨别算法中的心律失常鉴别算法,使用选择的心律失常辨别对所检测到的心律失常进行分类 算法,并向用户或进程提供心律失常分类。

    Neural stimulation for arrhythmia recognition and therapy
    26.
    发明授权
    Neural stimulation for arrhythmia recognition and therapy 有权
    心律失常识别和治疗的神经刺激

    公开(公告)号:US08244350B2

    公开(公告)日:2012-08-14

    申请号:US12535332

    申请日:2009-08-04

    申请人: Yunlong Zhang Dan Li

    发明人: Yunlong Zhang Dan Li

    IPC分类号: A61N1/00

    摘要: A system and method can sense a tachyarrhythmia, compare the sensed tachyarrhythmia with a ventricular tachyarrhythmia criterion, provide a ventricular tachyarrhythmia therapy when the sensed tachyarrhythmia satisfies the ventricular tachyarrhythmia criterion, provide a neural stimulation when the sensed tachyarrhythmia does not satisfy the ventricular tachyarrhythmia criterion, determine whether the tachyarrhythmia continues during or after the neural stimulation when the tachyarrhythmia is sustained, compare the tachyarrhythmia sensed during or after the neural stimulation with a supraventricular tachyarrhythmia (SVT) criterion, and provide a ventricular tachyarrhythmia therapy when the sensed tachyarrhythmia does not satisfy the SVT criterion.

    摘要翻译: 系统和方法可以感觉到快速性心律失常,将感觉到的快速性心律失常与室性快速性心律失常标准进行比较,当感觉到的快速性心律失常满足心室快速性心律失常标准时,提供室性快速性心律失常治疗,当感觉到的快速性心律失常不满足心室快速性心律失常标准时提供神经刺激, 确定当紧张性心律失常持续时神经刺激期间或之后快速性心律失常是否持续,将神经刺激期间或之后感觉到的快速性心律失常与室上性快速性心律失常(SVT)标准进行比较,并且当感觉到的快速性心律不齐不满足时,提供室性快速性心律失常治疗 SVT标准。

    Method and apparatus for selecting and timing anti-tachyarrhythmia pacing using cardiac cycle length stability
    27.
    发明授权
    Method and apparatus for selecting and timing anti-tachyarrhythmia pacing using cardiac cycle length stability 有权
    使用心脏周期长度稳定性选择和定时抗心动过速起搏的方法和装置

    公开(公告)号:US08050758B2

    公开(公告)日:2011-11-01

    申请号:US12829218

    申请日:2010-07-01

    申请人: Dan Li

    发明人: Dan Li

    IPC分类号: A61N1/362

    摘要: An implantable medical device delivers anti-tachyarrhythmia therapies including anti-tachyarrhythmia pacing (ATP). When a tachyarrhythmia episode is detected, the implantable medical device analyzes cardiac cycle length stability to determine whether and/or when to deliver an ATP. In one embodiment, the cardiac cycle length stability is measured by existence of stable ventricular tachyarrhythmia clusters (SVTCs) during the tachyarrhythmia episode. Each SVTC includes at least a specified minimum number of heart beats over which the cardiac cycle lengths meet a stability criterion.

    摘要翻译: 植入式医疗装置提供抗慢性心律失常疗法,包括抗快速性心律失常起搏(ATP)。 当检测到快速性心律失常发作时,可植入医疗装置分析心脏周期长度稳定性,以确定是否和/或何时递送ATP。 在一个实施例中,心动周期长度稳定性通过在快速性心律失常发作期间存在稳定的室性快速性心律失常簇(SVTC)来测量。 每个SVTC至少包括指定的最小心跳次数,其中心循环长度满足稳定性标准。

    Hypertension diagnosis and therapy using pressure sensor
    28.
    发明授权
    Hypertension diagnosis and therapy using pressure sensor 有权
    高血压诊断和治疗使用压力传感器

    公开(公告)号:US08027724B2

    公开(公告)日:2011-09-27

    申请号:US11833435

    申请日:2007-08-03

    IPC分类号: A61N1/08

    摘要: An example relates to a method for sensing a pulmonary artery pressure (PAP) and providing a sensed PAP signal, detecting an abnormal blood pressure (BP) condition using information from the sensed PAP signal, delivering a pacing energy to a heart, and automatically altering at least one pacing characteristic in response to the detected abnormal BP condition. The detecting an abnormal BP condition can include detecting various forms of hypertension or hypotension. The automatically altering the at least one pacing characteristic can include automatically altering at least one of a pacing rate, a pacing waveform, an atriventricular (AV) delay, an interventricular (VV) delay, a pacing mode, or a pacing site. The method can also include delivering vagal nerve stimulation and automatically altering the vagal nerve stimulation in response to the detected abnormal BP condition. The detecting the abnormal BP condition can also include using a sensed auxiliary physiological parameter.

    摘要翻译: 一个例子涉及一种用于感测肺动脉压(PAP)并提供感测到的PAP信号的方法,使用来自感测到的PAP信号的信息检测异常血压(BP)状况,将起搏能量递送到心脏,并且自动改变 响应于检测到的异常BP状况的至少一个起搏特征。 检测异常BP病症可包括检测各种形式的高血压或低血压。 自动改变至少一个起搏特征可以包括自动改变起搏速率,起搏波形,房室(AV)延迟,心室间(VV)延迟,起搏模式或起搏部位中的至少一个。 该方法还可以包括递送迷走神经刺激并响应于检测到的异常BP状况自动改变迷走神经刺激。 检测异常BP状况还可以包括使用感测的辅助生理参数。

    Topic Word Generation Method and System
    29.
    发明申请
    Topic Word Generation Method and System 有权
    主题词生成方法与系统

    公开(公告)号:US20110231411A1

    公开(公告)日:2011-09-22

    申请号:US13058062

    申请日:2008-11-07

    IPC分类号: G06F17/30

    CPC分类号: G06F17/3071

    摘要: A method of, and system for, extracting topic words from a collection of documents across multiple and potentially very large number of domains. Documents are selected and ranked based on similarity with at least one seed word, which defines a topic. Seed words may be entered directly by a user or provided by another application. Keywords are extracted from documents determined to be a sufficiently good match to the topic and may be displayed to the user or used as input into word prediction or word analysis and display software. Documents are determined to be a sufficiently good match to the topic using an iterative algorithm starting with the best match and selecting documents containing keywords sufficiently similar to the previously selected documents.

    摘要翻译: 一种用于从跨越多个可能非常大数量的域的文档集合中提取主题词的方法和系统。 基于与定义主题的至少一个种子词的相似性来选择和排序文档。 种子字可以由用户直接输入或由另一应用提供。 从确定为与该主题足够好的匹配的文档中提取关键字,并且可以向用户显示或用作词预测或词分析和显示软件的输入。 文档被确定为与主题的足够好的匹配,使用从最佳匹配开始的迭代算法,并选择包含与先前选择的文档充分相似的关键字的文档。

    METHOD AND APPARATUS FOR MORPHOLOGY-BASED ARRHYTHMIA CLASSIFICATION USING CARDIAC AND OTHER PHYSIOLOGICAL SIGNALS
    30.
    发明申请
    METHOD AND APPARATUS FOR MORPHOLOGY-BASED ARRHYTHMIA CLASSIFICATION USING CARDIAC AND OTHER PHYSIOLOGICAL SIGNALS 有权
    使用心脏和其他生理信号进行形态学基于ARRHYTHMIA分类的方法和装置

    公开(公告)号:US20110160551A1

    公开(公告)日:2011-06-30

    申请号:US13043346

    申请日:2011-03-08

    IPC分类号: A61B5/02

    摘要: A tachyarrhythmia detection and classification system classifies tachyarrhythmias based on an analysis of morphological features of a cardiac signal enhanced by using one or more physiological parameters indicative of hemodynamic stability and/or activity level. The tachyarrhythmia detection and classification system computes a measure of similarity between an arrhythmic waveform of the cardiac signal, a template waveform for that cardiac signal, such as a correlation coefficient representative of the correlation between morphological features of the arrhythmic waveform and morphological features of the template waveform. A detected tachyarrhythmia episode is classified by comparing the measure of similarity to a threshold that is dynamically adjusted using the one or more physiological parameters.

    摘要翻译: 快速心律失常检测和分类系统基于通过使用指示血液动力学稳定性和/或活动水平的一个或多个生理参数来增强的心脏信号的形态学特征的分析来分类快速性心律失常。 快速心律失常检测和分类系统计算心脏信号的心律失常波形与该心脏信号的模板波形之间的相似性的度量,例如表示心律失常波形的形态特征与模板的形态特征之间的相关性的相关系数 波形 通过将相似性测量值与使用一个或多个生理参数动态调整的阈值进行比较来分类检测到的快速性心律失常发作。