Method and apparatus for detecting a condition associated with acute cardiac ischemia
    1.
    发明授权
    Method and apparatus for detecting a condition associated with acute cardiac ischemia 失效
    用于检测与急性心肌缺血相关的病症的方法和装置

    公开(公告)号:US06171256B2

    公开(公告)日:2001-01-09

    申请号:US09209879

    申请日:1998-12-11

    IPC分类号: A61B50402

    摘要: A device (10) that detects and reports the presence of an acute cardiac ischemic condition in a patient includes sensing electrodes (12, 14, 16, 18, 20, 22, 24, 26, 28, and 30) placed on a patient for acquiring multiple (e.g., twelve) lead ECG data from the patient. The device evaluates the acquired ECG data by analyzing global features derived from the ECG data. Global features include projection coefficients calculated from projecting a concatenated vector of representative heartbeat data onto sets of basis vectors that define an acute cardiac ischemic ECG subspace and a non-ischemic ECG subspace. A classifier evaluates the global features to determine whether an acute cardiac ischemic condition is detected. In a further embodiment of the invention, one or more classifiers evaluate local features, such as local morphological features and patient clinical information, in addition to the global features to determine whether an acute cardiac ischemic condition is detected. The device (10) may be configured with an adjustable sensitivity/specificity operating point. The result of the evaluation is reported to the user of the device.

    摘要翻译: 检测并报告患者中存在急性心肌缺血状态的装置(10)包括放置在患者身上的感测电极(12,14,16,18,20,22,24,26,28和30),用于 从患者获取多个(例如,十二个)导联ECG数据。 该设备通过分析从ECG数据导出的全局特征来评估所获取的ECG数据。 全局特征包括通过将代表性心跳数据的级联矢量投影到定义急性心肌缺血心电图子空间和非缺血性ECG子空间的基本矢量集合而计算的投影系数。 分类器评估全局特征以确定是否检测到急性心肌缺血状况。 在本发明的另一实施例中,除了确定是否检测到急性心肌缺血状况的全局特征之外,一个或多个分类器还评估局部特征,例如局部形态特征和患者临床信息。 设备(10)可以配置有可调节的灵敏度/特异性操作点。 评估的结果报告给设备的用户。

    Reduced lead set device and method for detecting acute cardiac ischemic conditions
    2.
    发明授权
    Reduced lead set device and method for detecting acute cardiac ischemic conditions 失效
    降低引导装置和检测急性心肌缺血病症的方法

    公开(公告)号:US06217525B1

    公开(公告)日:2001-04-17

    申请号:US09229977

    申请日:1999-01-13

    IPC分类号: A61B50402

    摘要: A reduced lead set device (10) that detects and reports the presence of an acute cardiac ischemic condition in a patient includes a reduced set of sensing electrodes (12, 14, 16, 18, and 20) placed on a patient for acquiring ECG data from the patient. The reduced lead set device evaluates the ECG data on a reduced set of leads by analyzing local features and/or global features of the ECG data. Local features may include local morphological measures such as ST elevation and clinical information on the patient such as age and sex. Global features include projection coefficients calculated from projecting a concatenated vector of heartbeat data onto separate sets of basis vectors that define signal subspaces of ischemic and non-ischemic ECGs. One or more classifiers evaluate the local features and/or global features to determine whether an acute cardiac ischemic condition is detected. The operating point, i.e., sensitivity and specificity, of the reduced lead set device is adjustable. The result of the evaluation is reported to the user of the device.

    摘要翻译: 检测和报告患者中急性心肌缺血状况的存在的减少引线装置(10)包括放置在患者身上以获得ECG数据的减少的感测电极组(12,14,16,18和20) 来自病人。 减少引线组装置通过分析ECG数据的局部特征和/或全局特征来评估减少的引线组的ECG数据。 局部特征可能包括局部形态学测量,如ST抬高和患者的临床信息,如年龄和性别。 全局特征包括通过将心跳数据的级联向量投影到限定缺血性和非缺血性心电图的信号子空间的基本向量的单独集合而计算的投影系数。 一个或多个分类器评估局部特征和/或全局特征以确定是否检测到急性心肌缺血状况。 减少引线组装置的工作点,即灵敏度和特异性是可调节的。 评估的结果报告给设备的用户。

    Method and system for locating a portable medical device
    3.
    发明授权
    Method and system for locating a portable medical device 有权
    用于定位便携式医疗设备的方法和系统

    公开(公告)号:US06937150B2

    公开(公告)日:2005-08-30

    申请号:US10749573

    申请日:2003-12-31

    IPC分类号: A61N1/39 H04W64/00 G08B1/08

    CPC分类号: H04W64/00 A61N1/3931

    摘要: The invention provides a wireless automatic location identification (ALI) capable system (10), including a medical device (12) having a wireless data communicator (14), a wireless communication network (16), and a remote locating service (18) for remotely locating and monitoring one or more medical devices over the wireless communication network. When the medical device is linked to the remote locating service over the communication network, the ALI-capable system identifies the location of the medical device and relays the location information to the remote locating service. The system permits reliable determination of the location of the medical device wherever the medical device is situated. The medical device may further be configured to transmit signals indicative of its status, condition, or self-test results, to the remote locating service. This feature allows the remote locating service to centrally monitor the status or condition of a plurality of medical devices.

    摘要翻译: 本发明提供一种无线自动位置识别(ALI)能力系统(10),其包括具有无线数据通信器(14),无线通信网络(16)和远程定位服务(18)的医疗设备(12) 通过无线通信网络远程定位和监视一个或多个医疗设备。 当通过通信网络将医疗设备链接到远程定位服务时,具有ALI功能的系统识别医疗设备的位置并将位置信息中继到远程定位服务。 该系统允许在医疗设备所在的任何地方可靠地确定医疗设备的位置。 医疗设备还可以被配置为将指示其状态,状况或自检结果的信号发送到远程定位服务。 该特征允许远程定位服务集中监视多个医疗设备的状态或状况。

    Method and system for locating a portable medical device
    4.
    发明授权
    Method and system for locating a portable medical device 有权
    用于定位便携式医疗设备的方法和系统

    公开(公告)号:US06747556B2

    公开(公告)日:2004-06-08

    申请号:US09919783

    申请日:2001-07-31

    IPC分类号: G08B108

    CPC分类号: H04W64/00 A61N1/3931

    摘要: The invention provides a wireless automatic location identification (ALI) capable system (10), including a medical device (12) having a wireless data communicator (14), a wireless communication network (16), and a remote locating service (18) for remotely locating and monitoring one or more medical devices over the wireless communication network. When the medical device is linked to the remote locating service over the communication network, the ALI-capable system identifies the location of the medical device and relays the location information to the remote locating service. The system permits reliable determination of the location of the medical device wherever the medical device is situated. The medical device may further be configured to transmit signals indicative of its status, condition, or self-test results, to the remote locating service. This feature allows the remote locating service to centrally monitor the status or condition of a plurality of medical devices.

    摘要翻译: 本发明提供一种无线自动位置识别(ALI)能力系统(10),其包括具有无线数据通信器(14),无线通信网络(16)和远程定位服务(18)的医疗设备(12) 通过无线通信网络远程定位和监视一个或多个医疗设备。 当医疗设备通过通信网络链接到远程定位服务时,具有ALI功能的系统识别医疗设备的位置并将位置信息中继到远程定位服务。 该系统允许在医疗设备所在的任何地方可靠地确定医疗设备的位置。 医疗设备还可以被配置为将指示其状态,状况或自检结果的信号发送到远程定位服务。 该特征允许远程定位服务集中监视多个医疗设备的状态或状况。

    Combined skin preparation and monitoring electrode
    5.
    发明授权
    Combined skin preparation and monitoring electrode 失效
    组合皮肤准备和监测电极

    公开(公告)号:US5309909A

    公开(公告)日:1994-05-10

    申请号:US888041

    申请日:1992-05-22

    CPC分类号: A61B5/04025 A61B5/0408

    摘要: Disclosed is a combined skin preparation and monitoring electrode (12). The electrode reduces motion artifacts in recording biopotentials by penetrating a patient's skin prior to acquiring biopotentials. Penetration of the skin reduces skin impedance and the skin's propensity to generate motion artifacts. The electrode has a resilient dome (16) with penetration tines (18) extending from the concave inner surface of the dome. Upon application of a force to the dome, the dome moves from a first position to a second position, forcing the penetration tines into a patient's skin. Upon removal of the force, the dome moves back to its original configuration, withdrawing the penetration tines from the patient's skin.

    摘要翻译: 公开了一种组合的皮肤制备和监测电极(12)。 电极通过在获取生物电位之前穿透患者的皮肤来减少记录生物电位的运动伪影。 皮肤渗透会减少皮肤阻抗和皮肤产生运动假象的倾向。 电极具有弹性圆顶(16),其具有从圆顶的凹形内表面延伸的穿透尖(18)。 在向圆顶施加力时,圆顶从第一位置移动到第二位置,迫使穿透尖齿进入患者皮肤。 去除力后,穹顶移回原来的状态,从患者的皮肤上撤出穿刺尖。

    Medical electrode and system for minimizing motion artifacts
    6.
    发明授权
    Medical electrode and system for minimizing motion artifacts 失效
    用于最小化运动伪影的医用电极和系统

    公开(公告)号:US4311152A

    公开(公告)日:1982-01-19

    申请号:US3109

    申请日:1979-01-15

    摘要: A medical electrode and skin preparation device is adapted to be secured to the skin and is designed to prepare the skin by penetration of the epidermal layer of the skin in contact with the electrical conductor of the electrode after the electrode is secured in place on the skin. The electrode includes abrading member associated with electrical conductor capable of transmitting biopotential events for recording, with the electrical conductor retained by a collar and adhesive-coated pad securing the electrode to the skin of the patient. The abrading member in contact with the skin is movable relative to the skin of the patient and collar by an applicator gun to penetrate the epidermal layer of skin after the electrode is placed on the skin. Uniform skin preparation achieved by the electrode and applicator gun minimizes motion artifacts arising from skin potential variations.

    摘要翻译: 医用电极和皮肤制备装置适于固定在皮肤上,并被设计成在电极被固定在皮肤上的适当位置之后通过皮肤表皮层的渗透与电极的导电体接触来制备皮肤 。 电极包括与能够传输用于记录的生物潜在事件的电导体相关联的研磨部件,其中电导体由轴环保持并且将粘合剂涂覆的垫将电极固定到患者的皮肤。 与皮肤接触的研磨部件可以通过施加器枪相对于患者的皮肤和颈圈移动,以在将电极放置在皮肤上之后穿透皮肤表皮层。 通过电极和涂抹器枪实现的均匀皮肤准备使皮肤电位变化引起的运动伪影最小化。