INDIVIDUALIZED MORPHOLOGY FEATURE EVALUATION AND SELECTION FOR DISCRIMINATION IN IMPLANTABLE MEDICAL DEVICES
    31.
    发明申请
    INDIVIDUALIZED MORPHOLOGY FEATURE EVALUATION AND SELECTION FOR DISCRIMINATION IN IMPLANTABLE MEDICAL DEVICES 审中-公开
    可移植医疗设备中的个体化形态学特征评估与选择

    公开(公告)号:US20100023082A1

    公开(公告)日:2010-01-28

    申请号:US12507436

    申请日:2009-07-22

    IPC分类号: A61N1/365 A61B5/00

    摘要: An apparatus comprises an implantable sensor, which provides a plurality of physiologic sensor signals of a subject, and a processor. The processor includes a feature module and a detection module. The feature module is configured to identify a feature in the sensor signals and to determine a measure of quality of the feature in the sensor signals. The detection module is configured to perform a morphology analysis of a subsequent portion of at least one of the sensor signals using the feature when the measure of quality of the feature satisfies a quality measure threshold.

    摘要翻译: 一种装置包括可植入传感器,其提供对象的多个生理传感器信号和处理器。 处理器包括特征模块和检测模块。 特征模块被配置为识别传感器信号中的特征并且确定传感器信号中的特征的质量的度量。 所述检测模块被配置为当所述特征的质量度量满足质量测量阈值时,使用所述特征来对所述传感器信号中的至少一个的后续部分进行形态分析。

    HEMODYNAMIC MORPHOLOGICAL ANALYSIS FOR RHYTHM IDENTIFICATION
    32.
    发明申请
    HEMODYNAMIC MORPHOLOGICAL ANALYSIS FOR RHYTHM IDENTIFICATION 审中-公开
    用于RHYTHM识别的HEMODYMM MORPHOLOGICAL ANALYSIS

    公开(公告)号:US20090264716A1

    公开(公告)日:2009-10-22

    申请号:US12425193

    申请日:2009-04-16

    摘要: This document discusses, among other things, an apparatus comprising an implantable hemodynamic sensor circuit that provides a hemodynamic signal representative of mechanical function of a cardiovascular system of a subject and a controller circuit communicatively coupled to the hemodynamic sensor circuit. The controller circuit includes a detection module configured to detect an onset of tachyarrhythmia, a signal analyzer module configured to determine a measure of morphological variability of the hemodynamic signal during the episode of tachyarrhythmia, and a rhythm discrimination module configured to deem whether the tachyarrhythmia episode is indicative of ventricular tachycardia (VT) according to the measure of morphological variability.

    摘要翻译: 本文件尤其涉及一种包括可植入血液动力学传感器电路的装置,其提供表示受试者的心血管系统的机械功能的血液动力学信号和通信地耦合到血液动力学传感器电路的控制器电路。 所述控制器电路包括检测模块,所述检测模块被配置为检测快速性心律失常的发作,信号分析器模块被配置为确定在快速性心律失常发作期间的血液动力学信号的形态变异性的度量;以及节律辨别模块,其被配置为认为是否发生快速性心律失常发作 根据形态变异性的测量指示室性心动过速(VT)。

    SYSTEM FOR STIMULATING AUTONOMIC TARGETS FROM PULMONARY ARTERY
    33.
    发明申请
    SYSTEM FOR STIMULATING AUTONOMIC TARGETS FROM PULMONARY ARTERY 有权
    用于从脉动脉刺激自体目标的系统

    公开(公告)号:US20090228078A1

    公开(公告)日:2009-09-10

    申请号:US12327601

    申请日:2008-12-03

    IPC分类号: A61N1/36

    摘要: Various implantable medical device embodiments stimulate an autonomic neural target from within a pulmonary artery, and comprise at least one electrode, a power supply, a neural stimulator connected to the power supply, and an anchor structure. The neural stimulator is configured to generate a neural stimulation signal for delivery to the neural stimulation target through the at least one electrode. The anchor structure is configured to chronically and securely implant the neural stimulator, the power supply and the at least one electrode within the pulmonary artery. The anchor structure, the neural stimulator, the power supply and the at least one electrode are configured to be implanted through a pulmonary valve into the pulmonary artery. In various embodiments, the neural stimulator is configured to be operational to implement a neural stimulation protocol when chronically implanted within the pulmonary artery without a wired connection through the pulmonary valve.

    摘要翻译: 各种可植入医疗装置实施例从肺动脉内刺激自主神经靶标,并且包括至少一个电极,电源,连接到电源的神经刺激器和锚结构。 神经刺激器被配置为产生神经刺激信号,以通过至少一个电极传递到神经刺激靶。 锚结构被配置为长期且牢固地植入神经刺激器,电源和至少一个电极在肺动脉内。 锚结构,神经刺激器,电源和至少一个电极构造成通过肺动脉瓣植入肺动脉。 在各种实施例中,神经刺激器被配置为在长期植入肺动脉内而不通过肺动脉瓣的有线连接的情况下实施神经刺激方案。

    Electrospinning of fine hollow fibers
    34.
    发明授权
    Electrospinning of fine hollow fibers 失效
    细中空纤维的静电纺丝

    公开(公告)号:US07575707B2

    公开(公告)日:2009-08-18

    申请号:US11097975

    申请日:2005-03-29

    申请人: Younan Xia Dan Li

    发明人: Younan Xia Dan Li

    摘要: A method for electrospinning nanofibers having a core-sheath, tubular, or composite structure is disclosed. The process uses a spinneret having first and second capillaries that channel first and second fluids in the spinneret, the second capillary surrounding the first. A high voltage is applied between the spinneret and a spaced conductive collector. In one embodiment, the first fluid is a mineral oil and the second fluid is a polymeric solution that may include a polymer, a catalyst, a solvent, and a sol-gel precursor. The as-spun nanofiber includes an oil core and a composite sheath. The oil may be removed to produce a composite tubular fiber or the polymer and oil may be removed by calcination to produce a ceramic tubular fiber. In other embodiments, miscible fluids are used to produce porous nanofibers, selected additives functionalize the surfaces of the nanofibers and/or conjugated polymers are used.

    摘要翻译: 公开了一种具有芯鞘,管状或复合结构的电纺丝纳米纤维的方法。 该方法使用具有第一和第二毛细管的喷丝头,其在喷丝头中引导第一和第二流体,第二毛细管围绕第一毛细管。 在喷丝头和间隔的导电收集器之间施加高电压。 在一个实施方案中,第一流体是矿物油,第二流体是可以包括聚合物,催化剂,溶剂和溶胶 - 凝胶前体的聚合物溶液。 原纺丝纳米纤维包括油芯和复合护套。 可以除去油以产生复合管状纤维,或者可以通过煅烧除去聚合物和油,以产生陶瓷管状纤维。 在其它实施方案中,可混溶的流体用于生产多孔纳米纤维,所选择的添加剂使纳米纤维和/或共轭聚合物的表面功能化。

    SYSTEM FOR EVALUATING PERFORMANCE OF AN IMPLANTABLE MEDICAL DEVICE
    35.
    发明申请
    SYSTEM FOR EVALUATING PERFORMANCE OF AN IMPLANTABLE MEDICAL DEVICE 有权
    用于评估可植入医疗器械性能的系统

    公开(公告)号:US20090043355A1

    公开(公告)日:2009-02-12

    申请号:US11835812

    申请日:2007-08-08

    IPC分类号: A61N1/02

    摘要: A system evaluates the performance of an implantable medical device, such as by using a remote external server and a user interface and stored historical physiological data of a population of congestive heart failure (CHF) patients. A processor is coupled to a patient data storage device to apply multiple algorithm variations against the same implantable physiological data from the patient to produce corresponding resulting CHF indicators. The user interface includes a display that is configured to display to a user information allowing comparison between the resulting CHF indicators from the multiple algorithm variations. The display also includes a population data selector to permit the user to select physiological data from a population that includes a different set of one or more patients or physiological data collected over a period of time from the patient. This permits optimization of an algorithm parameter or selection of a best performing algorithm.

    摘要翻译: 系统评估可植入医疗装置的性能,例如通过使用远程外部服务器和用户界面以及存储充血性心力衰竭(CHF)患者群体的历史生理数据。 处理器耦合到患者数据存储装置,以对来自患者的相同的可植入生理数据应用多个算法变化,以产生相应的所得CHF指示符。 用户界面包括被配置为向用户显示信息的显示器,允许根据多个算法变化比较所得到的CHF指示符。 显示器还包括种群数据选择器,以允许用户从包括不同组的一个或多个患者或在患者的一段时间内收集的生理数据的群体中选择生理数据。 这允许优化算法参数或选择最佳执行算法。

    METHOD AND APPARATUS FOR CARDIAC ARRHYTHMIA CLASSIFICATION USING TEMPLATE BAND-BASED MORPHOLOGY ANALYSIS
    36.
    发明申请
    METHOD AND APPARATUS FOR CARDIAC ARRHYTHMIA CLASSIFICATION USING TEMPLATE BAND-BASED MORPHOLOGY ANALYSIS 有权
    使用模板条纹形态分析的心脏ARRHYTHMIA分类的方法和装置

    公开(公告)号:US20090005826A1

    公开(公告)日:2009-01-01

    申请号:US12206198

    申请日:2008-09-08

    申请人: Dan Li

    发明人: Dan Li

    IPC分类号: A61N1/39

    摘要: An implantable cardioverter/defibrillator (ICD) includes a tachyarrhythmia detection and classification system that classifies tachyarrhythmias based on a morphological analysis of arrhythmic waveforms and a template waveform. Correlation coefficients each computed between morphological features of an arrhythmic waveform and morphological features of the template waveform provide for the basis for classifying the tachyarrhythmia. In one embodiment, a correlation analysis takes into account the uncertainty associated with the production of the template waveform by using a template band that includes confidence intervals.

    摘要翻译: 植入式心律转复除颤器(ICD)包括快速心律失常检测和分类系统,其根据心律失常波形和模板波形的形态学分析对快速性心律失常进行分类。 在心律失常波形的形态特征与模板波形的形态特征之间计算的相关系数为分类快速性心律失常提供依据。 在一个实施例中,相关分析通过使用包括置信区间的模板带来考虑与模板波形的产生有关的不确定性。

    PATIENT CHARACTERISTIC BASED ADAPTIVE ANTI-TACHY PACING PROGRAMMING
    37.
    发明申请
    PATIENT CHARACTERISTIC BASED ADAPTIVE ANTI-TACHY PACING PROGRAMMING 有权
    基于特征特征的自适应防篡改编程

    公开(公告)号:US20080262558A1

    公开(公告)日:2008-10-23

    申请号:US11736286

    申请日:2007-04-17

    IPC分类号: A61N1/365

    CPC分类号: A61N1/3621

    摘要: A system including at least one implantable sensor circuit adapted to produce an electrical sensor signal related to one or more physiologic cardiovascular events of a subject, a therapy circuit configured to provide anti-tachycardia pacing (ATP) therapy, and a controller. The controller includes a tachyarrhythmia detection circuit and an efficacy circuit. The tachyarrhythmia detection circuit is configured to detect a tachyarrhythmia episode in the subject using the electrical sensor signal, and to determine whether the tachyarrhythmia episode is of a type that is treatable with ATP. The efficacy circuit is configured to estimate an efficacy of a currently configured ATP therapy for the subject, and the controller is configured to alter a delivery regimen of the currently configured ATP therapy when the estimated ATP therapy efficacy is deemed insufficient. Other systems and methods are described.

    摘要翻译: 一种系统,包括适于产生与受试者的一个或多个生理性心血管事件相关的电传感器信号的至少一个可植入传感器电路,被配置为提供抗心动过速起搏(ATP)治疗的治疗电路和控制器。 控制器包括快速性心律失常检测电路和功效电路。 快速心律失常检测电路被配置为使用电传感器信号检测受试者的快速性心律失常发作,并且确定快速性心律失常发作是否是可用ATP治疗的类型。 功效电路被配置为估计当前配置的ATP治疗对受试者的功效,并且当估计的ATP治疗功效被认为不足时,控制器被配置为改变当前配置的ATP治疗的递送方案。 描述了其他系统和方法。

    METHOD AND APPARATUS FOR ATRIAL PACING DURING TACHYARRHYTHMIA
    38.
    发明申请
    METHOD AND APPARATUS FOR ATRIAL PACING DURING TACHYARRHYTHMIA 有权
    方法和装置在TACHYARRHYTHMIA期间的ATRIAL PACING

    公开(公告)号:US20080183228A1

    公开(公告)日:2008-07-31

    申请号:US11668627

    申请日:2007-01-30

    IPC分类号: A61N1/39

    摘要: An implantable cardioverter/defibrillator (ICD) delivers atrial pacing under several scenarios during a tachyarrhythmia episode that is detected using a ventricular rate. In various embodiments, the atrial pacing terminates the detected tachyarrhythmia and/or enhances the classification of the detected tachyarrhythmia, thus avoiding ineffective and/or unnecessary delivery of a ventricular anti-tachyarrhythmia therapy when the detected tachyarrhythmia has a supraventricular origin.

    摘要翻译: 植入式心律转复除颤器(ICD)在使用心室率检测到的快速性心律失常发作期间在几种情况下提供心房起搏。 在各种实施方案中,心房起搏终止所检测到的快速性心律失常和/或增强检测到的快速性心律失常的分类,从而避免了当检测到的快速性心律失常具有室上性起源时,无效和/或不必要地输送室性抗快速性心律失常治疗。

    METHOD AND APPARATUS FOR AUTOMATED ADJUSTMENT OF ARRHYTHMIA DETECTION DURATION
    40.
    发明申请
    METHOD AND APPARATUS FOR AUTOMATED ADJUSTMENT OF ARRHYTHMIA DETECTION DURATION 有权
    自动调整ARRHYTHMIA检测持续时间的方法和装置

    公开(公告)号:US20080051843A1

    公开(公告)日:2008-02-28

    申请号:US11467421

    申请日:2006-08-25

    IPC分类号: A61N1/362

    摘要: A cardiac rhythm management (CRM) system delivers anti-tachyarrhythmia therapies and uses patient-specific and/or tachyarrhythmia event-specific information to automatically set and adjust one or more arrhythmia detection durations. In one embodiment, the CRM system initializes and updates the one or more arrhythmia detection durations using patient-specific information such as medical history and recent medical trends. In another embodiment, the CRM dynamically adjusts the one or more arrhythmia detection durations using the patient's hemodynamic performance. One example of such an arrhythmia detection duration is a sustained rate duration (SRD) that starts when a tachyarrhythmia such as a supraventricular tachyarrhythmia is detected. An anti-tachyarrhythmia therapy is delivered only if the tachyarrhythmia sustains throughout the SRD.

    摘要翻译: 心律管理(CRM)系统提供抗心律失常疗法,并使用患者特异性和/或快速性心律失常事件特定信息来自动设置和调整一种或多种心律失常检测持续时间。 在一个实施例中,CRM系统使用患者特定信息(例如病史和最近的医疗趋势)来初始化和更新一个或多个心律失常检测持续时间。 在另一个实施例中,CRM使用患者的血液动力学性能来动态地调整一个或多个心律失常检测持续时间。 这种心律失常检测持续时间的一个例子是当检测到诸如室上性快速性心律失常之类的快速性心律失常时开始的持续速率持续时间(SRD)。 仅在快速性心律失常在整个SRD中持续时才能进行抗快速性心律失常治疗。