Arrhythmia discrimination using electrocardiograms sensed from multiple implanted electrodes
    71.
    发明授权
    Arrhythmia discrimination using electrocardiograms sensed from multiple implanted electrodes 有权
    使用从多个植入电极感测的心电图的心律失常辨别

    公开(公告)号:US07917196B2

    公开(公告)日:2011-03-29

    申请号:US11125020

    申请日:2005-05-09

    IPC分类号: A61B5/0464

    CPC分类号: A61B5/04011 A61B5/7203

    摘要: Cardiac monitoring and/or stimulation methods and systems provide for monitoring, diagnosing, defibrillation and pacing therapies, or a combination of these capabilities, including cardiac systems incorporating or cooperating with neuro-stimulating devices, drug pumps, or other therapies. Embodiments relate generally to implantable medical devices employing automated cardiac activation sequence monitoring and/or tracking for arrhythmia discrimination. Embodiments are directed to devices and methods involving sensing a plurality of composite cardiac signals using a plurality of implantable electrodes. A source separation is performed using the sensed plurality of composite cardiac signals and the separation produces one or more cardiac signal vectors associated with one or more cardiac activation sequences that is indicative of ischemia. A change of the one or more cardiac signal vectors is detected using the one or more cardiac signal vectors. Cardiac arrhythmias are discriminated using the one or more cardiac signal vectors.

    摘要翻译: 心脏监测和/或刺激方法和系统提供监测,诊断,除颤和起搏治疗,或这些能力的组合,包括结合或与神经刺激装置,药物泵或其他疗法组合的心脏系统。 实施例一般涉及使用自动心脏激活序列监测和/或跟踪用于心律失常鉴别的可植入医疗装置。 实施例涉及使用多个可植入电极感测多个复合心脏信号的装置和方法。 使用感测的多个复合心脏信号进行源分离,并且分离产生与指示缺血的一个或多个心脏激活序列相关联的一个或多个心脏信号载体。 使用一个或多个心脏信号矢量检测一个或多个心脏信号矢量的改变。 使用一个或多个心脏信号载体来区分心律失常。

    ECG signal power vector detection of ischemia or infarction
    72.
    发明授权
    ECG signal power vector detection of ischemia or infarction 有权
    心电信号功率矢量检测缺血或梗塞

    公开(公告)号:US07894889B2

    公开(公告)日:2011-02-22

    申请号:US12484061

    申请日:2009-06-12

    申请人: Yi Zhang

    发明人: Yi Zhang

    IPC分类号: A61B5/0452

    摘要: A method comprising sensing at least one cardiac signal representative of cardiac activity of a subject using an implantable medical device (IMD), calculating, from the cardiac signal, a first dominant vector corresponding to a direction and magnitude of maximum signal power of an ST-T first segment of a cardiac cycle and a second dominant vector corresponding to a direction and magnitude of maximum signal power of a P-QRS second segment of a cardiac cycle, measuring a change in the first dominant vector, measuring a change in the second dominant vector, and subtracting the change in the second dominant vector from the measured change in the first dominant vector to form a difference.

    摘要翻译: 一种方法,包括使用可植入医疗装置(IMD)感测表示对象的心脏活动的至少一个心脏信号,从心脏信号计算对应于ST段的最大信号功率的方向和幅度的第一显性矢量, T心脏周期的第一段和对应于心动周期的P-QRS第二段的最大信号功率的方向和幅度的第二主要矢量,测量第一显性矢量的变化,测量第二主要变化 向量,并从第一显性向量的测量变化中减去第二显性向量中的变化以形成差。

    PROBE DENSITY SELF-CONSIDERATIONS AND ELONGATION OF COMPLEMENTARY LOOPED PROBES WHERE PROBES ARE ATTACHED TO A SOLID PHASE
    75.
    发明申请
    PROBE DENSITY SELF-CONSIDERATIONS AND ELONGATION OF COMPLEMENTARY LOOPED PROBES WHERE PROBES ARE ATTACHED TO A SOLID PHASE 有权
    探索密度自我考虑和延伸的复杂循环探测器,其中探测器连接到固相

    公开(公告)号:US20100267578A1

    公开(公告)日:2010-10-21

    申请号:US12708362

    申请日:2010-02-18

    IPC分类号: C40B30/04

    摘要: In a multiplexed assay method carried out in solution, wherein the solution contains nucleic acid targets and, wherein several different types of oligonucleotide probes, each type having a different sequence in a region designated as a target binding domain, are used to detect the nucleic acid targets, said assay method including a method for increasing the effective concentration of the nucleic acid targets at the surface of a bead to which the oligonucleotide probes are bound, by one or more of the following steps:adjusting assay conditions so as to increase the effective concentration of the targets available for binding to the probes, by one or more of the following: (i) selecting a particular probe density on the surface of the bead; (ii) selecting a solution having an ionic strength greater than a threshold; (ii) selecting a target domain of a size less than a threshold; or (iii) selecting target domains within a specified proximity to a terminal end of the targets.

    摘要翻译: 在溶液中进行的多重测定方法中,其中溶液含有核酸靶,并且其中使用几个不同类型的寡核苷酸探针,每个类型在被称为靶结合结构域的区域中具有不同序列,以检测核酸 目标,所述测定方法包括通过一个或多个以下步骤增加寡核苷酸探针结合珠粒表面上的核酸靶的有效浓度的方法:调节测定条件以增加有效 通过一种或多种以下方法可用于结合探针的靶的浓度:(i)在珠的表面上选择特定的探针密度; (ii)选择具有大于阈值的离子强度的溶液; (ii)选择小于阈值的大小的目标域; 或(iii)在目标的终端的指定接近范围内选择目标域。

    Rapid shallow breathing detection for use in congestive heart failure status determination
    76.
    发明授权
    Rapid shallow breathing detection for use in congestive heart failure status determination 有权
    快速浅呼吸检测用于充血性心力衰竭状态测定

    公开(公告)号:US07775983B2

    公开(公告)日:2010-08-17

    申请号:US11229316

    申请日:2005-09-16

    IPC分类号: A61B5/02 A61B5/08

    摘要: Systems and methods involve use of a medical device comprising sensing circuitry. One or more respiratory parameters are detected using the device. Patient baseline weight is provided, and an output signal indicative of a patient's congestive heart failure status is generated based on a change in the one or more respiratory parameters and a change in the patient's measured weight or predicted weight relative to the patient baseline weight. The respiratory parameters may include one or more of respiration rate, relative tidal volume, an index indicative of rapid shallow breathing by the patient, an index derived by computing a respiration rate and a tidal volume for each patient breath, and an index indicative of dyspnea, for example.

    摘要翻译: 系统和方法涉及使用包括感测电路的医疗装置。 使用该装置检测一个或多个呼吸参数。 提供患者基线重量,并且基于一个或多个呼吸参数的变化和患者相对于患者基线重量的测量重量或预测体重的变化来生成指示患者充血性心力衰竭状态的输出信号。 呼吸参数可以包括呼吸速率,相对潮气量,指示患者快速浅呼吸的指标,通过计算呼吸速率导出的指数和每个患者呼吸的潮气量以及指示呼吸困难的指数中的一个或多个 , 例如。

    DELIVERY APPARATUS FOR A RETRACTABLE SELF EXPANDING NEUROVASCULAR STENT
    77.
    发明申请
    DELIVERY APPARATUS FOR A RETRACTABLE SELF EXPANDING NEUROVASCULAR STENT 审中-公开
    用于可回收自我扩张神经病变的输送装置

    公开(公告)号:US20100185271A1

    公开(公告)日:2010-07-22

    申请号:US12686988

    申请日:2010-01-13

    申请人: Yi Zhang

    发明人: Yi Zhang

    IPC分类号: A61F2/84

    摘要: The present invention relates to a delivery apparatus for delivering a self-expanding neurovascular stent that allows for smooth movement of the apparatus along a typically tortuous vascular path, ease of stent deployment, and ease of stent retractability being pushed and pulled through the delivery apparatus. The apparatus includes an outer catheter, and an inner shaft located coaxially within the outer catheter. The stent is mounted on the distal section of the inner shaft and preloaded within the outer catheter distal region. The inner shaft includes at least one stent blocking member disposed in the distal section. The self-expanding stent has proximal, middle and distal ends and is comprised of a plurality of closed cells. The self-expanding stent includes locking members which interlock with the blocking member(s) disposed on the inner shaft so as to lock the stent onto the inner shaft within the outer catheter, and to enable the stent retractable together with the inner shaft being out of and retrieved back to the outer catheter. More specially, the invention may be used in the treatment of blood vessel blockage and aneurysms which occur in the brain.

    摘要翻译: 本发明涉及一种用于递送自扩张神经血管支架的输送装置,其允许沿着典型曲折的血管路径平滑移动装置,容易地进行支架展开,并且通过推送装置推动和拉动支架缩回容易。 该装置包括外导管和同轴地位于外导管内的内轴。 支架安装在内轴的远端部分上,并预先装在外导管远端区域内。 内轴包括设置在远端部分中的至少一个支架阻挡构件。 自扩张支架具有近端,中部和远端,并且由多个闭孔组成。 自扩张支架包括与设置在内轴上的阻挡构件互锁的锁定构件,以将支架锁定在外导管内的内轴上,并且使支架能够与内轴一起伸出 并返回到外导管。 更具体地,本发明可用于治疗发生在脑中的血管阻塞和动脉瘤。

    Daytime/nighttime respiration rate monitoring
    78.
    发明授权
    Daytime/nighttime respiration rate monitoring 有权
    白天/夜间呼吸率监测

    公开(公告)号:US07704215B2

    公开(公告)日:2010-04-27

    申请号:US12384271

    申请日:2009-04-02

    IPC分类号: A61B5/00

    摘要: A device and method can monitor or trend a patient's respiration rate measurements according to the time of day. The device, which may be implantable or external, collects and classifies respiration rate measurements over time. The trended information about particular classes of respiration rate measurements is then communicated to a remote external device, which in turn provides an indication of heart failure decompensation. Examples of classes of respiration rate measurements include a daily maximum respiration rate value, a daily minimum respiration rate value, a daily maximum respiration rate variability value, a daily minimum respiration rate variability value, and a daily central respiration rate value. These respiration rate measurements can be further classified into daytime or nighttime respiration rate measurements.

    摘要翻译: 一种装置和方法可以根据一天中的时间来监视或趋向于患者的呼吸速率测量。 该装置可以植入或外部收集和分类呼吸速率测量随时间的变化。 关于呼吸率测量的特定类别的趋势化信息然后被传送到远程外部设备,远程外部设备又提供心力衰竭失代偿指示。 呼吸速率测量类别的实例包括每日最大呼吸率值,每日最小呼吸率值,每日最大呼吸率变异值,每日最小呼吸率变异性值和每日中心呼吸率值。 这些呼吸率测量可以进一步分为白天或夜间呼吸率测量。