知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

79 条记录 (耗时 0.038 秒)

    Heart rate correction system and methods for the detection of cardiac events
    61.
    发明授权
    Heart rate correction system and methods for the detection of cardiac events 有权
    心率校正系统及心脏事件检测方法

    公开(公告)号：US09220428B2

    公开(公告)日：2015-12-29

    申请号：US14681472

    申请日：2015-04-08

    申请人： ANGEL MEDICAL SYSTEMS, INC.

    发明人： Bruce Hopenfeld

    IPC分类号： A61B5/04 ,  A61B5/0452 ,  A61B5/0245 ,  A61B5/0402

    CPC分类号： A61B5/04017 ,  A61B5/0245 ,  A61B5/04012 ,  A61B5/0402 ,  A61B5/0452 ,  A61B5/0472

    摘要： A device for detecting a cardiac event is disclosed. Detection of an event is based on a test applied to a parameter whose value varies according to heart rate. Both the parameter value and heart rate (RR interval) are filtered with an exponential average filter. From these filtered values, the average change in the parameter and the RR interval are also computed with an exponential average filter. Before computing the average change in the parameter, large changes in the parameter over short times, which may be caused by body position shifts, are attenuated are removed, so that the average change represents an average of small/smooth changes in the parameter's value that are characteristic of acute ischemia, one of the cardiac events that may be detected. The test to detect the cardiac event depends on the heart rate, the difference between the parameter's value and its upper and lower normal values, and its average change over time, adjusted for heart rate changes. The upper and lower normal parameter values as a function of heart rate are determined from long term stored data of the filtered RR values and parameter values. Hysteresis related data and transitory deviations from normal (e.g. vasospasm related data) are excluded from the computation of normal upper and lower parameter bounds.

    摘要翻译： 公开了一种用于检测心脏事件的装置。 事件的检测基于应用于其值根据心率而变化的参数的测试。 参数值和心率（RR间隔）都用指数平均滤波器过滤。 从这些滤波值，参数和RR间隔的平均变化也用指数平均滤波器计算。 在计算参数的平均变化之前，消除了可能由身体位置偏移引起的短时间内的参数的大的变化，使得平均变化表示参数值的小/平滑变化的平均值， 是急性缺血的特征，可能是检测到的心脏事件之一。 检测心脏事件的检测取决于心率，参数值与其上下正常值之间的差异及其随时间的平均变化，根据心率变化进行调整。 根据滤波的RR值和参数值的长期存储数据确定作为心率函数的上下正态参数值。 滞后相关数据和与正常（例如血管痉挛相关数据）的暂时偏差从正常上限和下限参数界限的计算中排除。

    Acute ischemia detection based on smoothed temporal thresholding
    62.
    发明授权
    Acute ischemia detection based on smoothed temporal thresholding 有权
    基于平滑时间阈值的急性缺血检测

    公开(公告)号：US09192309B1

    公开(公告)日：2015-11-24

    申请号：US14591268

    申请日：2015-01-07

    申请人： ANGEL MEDICAL SYSTEMS, INC.

    发明人： Bruce Hopenfeld ,  Steven R. Johnson

    IPC分类号： A61B5/0452 ,  A61B5/02

    CPC分类号： A61B5/02028 ,  A61B5/0006 ,  A61B5/0022 ,  A61B5/02405 ,  A61B5/04012 ,  A61B5/0452 ,  A61B5/686 ,  A61B5/7282 ,  A61B5/742 ,  A61B5/746 ,  A61B5/7465

    摘要： A heart monitor is disclosed. The monitor computes ST segment deviations and stores the results in heart rate based histograms. Periodically, the monitor analyzes the histogram data to determine a normal range of ST deviation for a particular heart rate range. The monitor computes heart rate dependent ischemia detection thresholds based on the upper and lower boundaries of the normal range. A current threshold for a heart rate range is set as a weighted average of the prior threshold and a provisional threshold based on recent data, thereby limiting the amount the actual detection threshold changes from period to period.

    摘要翻译： 公开了心脏监护仪。 监视器计算ST段偏差，并将结果存储在基于心率的直方图中。 定期地，监视器分析直方图数据以确定特定心率范围的ST偏差的正常范围。 该监视器根据正常范围的上限和下限计算心率依赖性缺血检测阈值。 将心率范围的当前阈值设置为先前阈值的加权平均值和基于最近数据的临时阈值，从而限制实际检测阈值从周期到周期的变化量。

    Cardiac event detection based on selective pacing for establishing a paced heart signal parameter baseline
    63.
    发明授权
    Cardiac event detection based on selective pacing for establishing a paced heart signal parameter baseline 有权
    基于选择性起搏的心脏事件检测建立起搏心跳信号参数基线

    公开(公告)号：US09174057B1

    公开(公告)日：2015-11-03

    申请号：US14531249

    申请日：2014-11-03

    申请人： ANGEL MEDICAL SYSTEMS, INC.

    发明人： David R. Fischell ,  Michael Sasha John ,  Bruce Hopenfeld

    IPC分类号： A61N1/00 ,  A61N1/37 ,  A61N1/362 ,  A61B5/0452

    CPC分类号： A61N1/3702 ,  A61B5/0452 ,  A61B5/0472 ,  A61B5/4836 ,  A61B5/7282 ,  A61N1/025 ,  A61N1/362 ,  A61N1/368 ,  A61N1/3684

    摘要： A device for detecting cardiac ischemia is disclosed. The device includes a processor that is configured to distinguish between two different heart beats types such as ventricularly paced beats and supraventricular beats. The processor collects separate reference data for a first one of the beat types indicative of the normal values of a cardiac feature. The processor performs an ischemia test to beats of the first type by first checking whether valid reference data exists for that beat type. If so, the ischemia test is based on this reference data. If no valid reference data exists for the firs beat type, the processor applies an ischemia test that is not based on reference data for the first beat type.

    摘要翻译： 公开了一种用于检测心脏缺血的装置。 该装置包括处理器，其被配置为区分两种不同的心跳类型，例如心室起搏节拍和室上搏动。 处理器针对指示心脏特征的正常值的节拍类型中的第一个收集单独的参考数据。 处理器通过首先检查是否存在针对该节拍类型的有效参考数据来执行第一类型的缺血测试。 如果是这样，缺血试验基于该参考数据。 如果没有针对第一拍子类型的有效参考数据，则处理器应用不基于第一拍子类型的参考数据的缺血测试。

    Heart rate correction system and methods for the detection of cardiac events
    64.
    发明授权
    Heart rate correction system and methods for the detection of cardiac events 有权
    心率校正系统及心脏事件检测方法

    公开(公告)号：US09042969B2

    公开(公告)日：2015-05-26

    申请号：US12461442

    申请日：2009-08-12

    申请人： Bruce Hopenfeld

    发明人： Bruce Hopenfeld

    IPC分类号： A61B5/04 ,  A61B5/0452

    CPC分类号： A61B5/04017 ,  A61B5/0245 ,  A61B5/04012 ,  A61B5/0402 ,  A61B5/0452 ,  A61B5/0472

    摘要： A device for detecting a cardiac event is disclosed. Detection of an event is based on a test applied to a parameter whose value varies according to heart rate. Both the parameter value and heart rate (RR interval) are filtered with an exponential average filter. From these filtered values, the average change in the parameter and the RR interval are also computed with an exponential average filter. Before computing the average change in the parameter, large changes in the parameter over short times, which may be caused by body position shifts, are attenuated are removed, so that the average change represents an average of small/smooth changes in the parameter's value that are characteristic of acute ischemia, one of the cardiac events that may be detected. The test to detect the cardiac event depends on the heart rate, the difference between the parameter's value and its upper and lower normal values, and its average change over time, adjusted for heart rate changes. The upper and lower normal parameter values as a function of heart rate are determined from long term stored data of the filtered RR values and parameter values. Hysteeresis related data and transitory deviations from normal (e.g. vasospasm related data) are excluded from the computation of normal upper and lower parameter bounds.

    摘要翻译： 公开了一种用于检测心脏事件的装置。 事件的检测基于应用于其值根据心率而变化的参数的测试。 参数值和心率（RR间隔）都用指数平均滤波器过滤。 从这些滤波值，参数和RR间隔的平均变化也用指数平均滤波器计算。 在计算参数的平均变化之前，消除了可能由身体位置偏移引起的短时间内的参数的大的变化，使得平均变化表示参数值的小/平滑变化的平均值， 是急性缺血的特征，可能是检测到的心脏事件之一。 检测心脏事件的检测取决于心率，参数值与其上下正常值之间的差异及其随时间的平均变化，根据心率变化进行调整。 根据滤波的RR值和参数值的长期存储数据确定作为心率函数的上下正态参数值。 与正常（例如血管痉挛有关的数据）的Hysteeresis相关数据和暂时偏差从正常的上限和下限参数界限的计算中排除。

    Alarm testing and backup for implanted medical devices with vibration alerts
    68.
    发明授权
    Alarm testing and backup for implanted medical devices with vibration alerts 有权
    具有振动警报的植入式医疗设备的报警测试和备份

    公开(公告)号：US08457725B1

    公开(公告)日：2013-06-04

    申请号：US13633275

    申请日：2012-10-02

    申请人： David R. Fischell ,  Angel Medical Systems, Inc.

    发明人： David R. Fischell ,  Michael Sasha John ,  Jonathan Harwood

    IPC分类号： A61B5/04

    CPC分类号： A61B5/0402 ,  A61B5/6846 ,  A61B2560/0271 ,  A61B2560/0276 ,  A61B2562/0219 ,  A61N1/37258 ,  G16H40/67

    摘要： An implanted device which includes a vibrator having a drive motor and a drive circuit. An accelerometer is connected to the vibrator and senses alarm test data related to the displacement of the vibrator. A power source provides electricity to the implanted device and a processor is configured for bi-directional wireless communication. The processor is configured for receiving a command from an external device for performance of an alarm test and the processor analyzes the alarm test data for generating test results.

    摘要翻译： 一种植入装置，其包括具有驱动电动机和驱动电路的振动器。 加速度传感器连接到振动器，并感测与振动器位移相关的报警测试数据。 电源为植入装置提供电力，并且处理器被配置用于双向无线通信。 处理器被配置为从外部设备接收命令以执行报警测试，并且处理器分析报警测试数据以产生测试结果。

    Ischemia detection systems for paced-patients having three different detection modes
    69.
    发明授权
    Ischemia detection systems for paced-patients having three different detection modes 有权
    具有三种不同检测模式的起搏患者的缺血检测系统

    公开(公告)号：US08452404B1

    公开(公告)日：2013-05-28

    申请号：US12624506

    申请日：2009-11-24

    申请人： David R. Fischell ,  Michael Sasha John ,  David Keenan

    发明人： David R. Fischell ,  Michael Sasha John ,  David Keenan

    IPC分类号： A61N1/00 ,  A61B5/0402

    CPC分类号： A61B5/04525 ,  A61B5/0031 ,  A61B5/0456 ,  A61B5/0468 ,  A61B5/0472 ,  A61B5/1112 ,  A61N1/368

    摘要： A device for detecting cardiac ischemia is disclosed. The device includes a processor that is configured to operate in three different modes according to relative frequency of different beat types. If beats of a first beat type, such as ventricularly paced beats, are predominant, the processor ignores other beat types and performs ischemia detection only on ventricularly paced beats. Conversely, if beats of a second beat type, such as sinus or atrially paced beats, are predominant, the processor ignores ventricularly paced beats and performs ischemia detection only on sinus or atrially paced beats. If there is a mixture of beat types such that neither predominates, the processor performs ischemia detection on both beat types.

    摘要翻译： 公开了一种用于检测心脏缺血的装置。 该装置包括处理器，其配置为根据不同拍子类型的相对频率在三种不同模式下操作。 如果头部节拍类型（例如心室起搏节拍）占优势，则处理器忽略其他节拍类型，仅针对心室起搏节拍进行缺血检测。 相反，如果第二节拍类型的节拍（例如窦性或高发性节拍）是主要的，则处理器忽略心室起搏节拍，并且仅对窦性或心率起搏节拍进行缺血检测。 如果没有优势的节拍类型的混合，则处理器对两种节拍类型执行缺血检测。

    Systems and methods of alarm validation and backup in implanted medical devices
    70.
    发明授权
    Systems and methods of alarm validation and backup in implanted medical devices 有权
    植入式医疗设备中的报警验证和备份的系统和方法

    公开(公告)号：US08269634B2

    公开(公告)日：2012-09-18

    申请号：US12461876

    申请日：2009-08-27

    申请人： David R. Fischell ,  Michael Sasha John

    发明人： David R. Fischell ,  Michael Sasha John

    IPC分类号： G08B23/00

    CPC分类号： A61B5/0031 ,  A61N1/37258 ,  G16H40/67

    摘要： Alarm tests are disclosed which use alarm test signals to assess alarms provided by medical devices. Especially relevant are implanted devices that monitor cardiac activity and provide notification in response to medically relevant events. Alarm tests can occur periodically, or in response to a patient, doctor, or remote party initiating the alarm test. Alarm tests can also occur during the actual alarms issued to detected medical events. Alarm tests lead to pass or fail results, which in turn may cause operations to contingently occur. Alarm test failure in the auditory, visual, or tactile modality, may cause an alternatively defined alarm signal to be used as back-up. Alarm test logs can store alarm test results, including quantification of the measured alarm signal. Rapid alarm tests are described, as are various methods of accurately measuring characteristics of the test signal in ambulatory patients, which are especially relevant to a vibration alarm.

    摘要翻译： 公开了报警测试，其使用报警测试信号来评估由医疗设备提供的警报。 特别相关的是监测心脏活动的植入装置，并响应医疗相关事件提供通知。 报警测试可以周期性地发生，或者响应于启动报警测试的病人，医生或远程方。 在检测到的医疗事件发生的实际警报中也可能发生报警测试。 报警测试导致通过或失败结果，这反过来可能导致操作偶然发生。 在听觉，视觉或触觉模式中的报警测试失败可能导致备用定义的报警信号用作备份。 报警测试记录可以存储报警测试结果，包括测量报警信号的量化。 描述了快速报警测试，以及精确测量门诊患者测试信号特性的各种方法，这些特征与振动报警特别相关。