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    • 1. 发明授权
    • Method and apparatus for controlling anti-tachyarrhythmia pacing using hemodynamic sensor
    • 使用血液动力学传感器控制抗心律失调起搏的方法和装置
    • US07844331B2
    • 2010-11-30
    • US11312082
    • 2005-12-20
    • Dan LiGerrard M. CarlsonStephen J. Hahn
    • Dan LiGerrard M. CarlsonStephen J. Hahn
    • A61N1/365
    • A61N1/3622A61N1/36514
    • A cardiac rhythm management (CRM) system includes an implantable medical device that delivers anti-tachyarrhythmia therapies including anti-tachyarrhythmia pacing (ATP) and at least one hemodynamic sensor that senses a hemodynamic signal. When a tachyarrhythmia episode is detected, the CRM system analyzes the hemodynamic signal to determine whether and/or when to deliver an ATP. In one embodiment, a hemodynamic parameter extracted from the hemodynamic signal is used to predict the potential effectiveness of ATP in terminating the detected tachyarrhythmia episode. In another embodiment, a characteristic feature detected from the hemodynamic signal is used to determine an ATP window during which a delivery of ATP is initiated.
    • 心律管理(CRM)系统包括可植入的医疗装置,其传递抗慢性心律失常疗法,包括抗快速性心律失常起搏(ATP)和至少一种感测血液动力学信号的血液动力学传感器。 当检测到快速性心律失常发作时,CRM系统分析血液动力学信号,以确定是否和/或何时递送ATP。 在一个实施例中,使用从血液动力学信号提取的血液动力学参数来预测ATP终止检测到的快速性心律失常发作的潜在有效性。 在另一个实施例中,使用从血液动力学信号检测到的特征特征来确定在其中开始ATP递送的ATP窗口。
    • 5. 发明授权
    • Process for implanting subcutaneous defibrillation electrodes
    • 植入皮下除颤电极的方法
    • US5230337A
    • 1993-07-27
    • US912950
    • 1992-07-14
    • Roger W. DahlDavid K. SwansonStephen J. HahnDouglas J. LangJohn E. Heil
    • Roger W. DahlDavid K. SwansonStephen J. HahnDouglas J. LangJohn E. Heil
    • A61N1/05
    • A61N1/05
    • Implantable electrodes for defibrillation are formed of pluralities of electrode segments. Each of the segments is relatively long and narrow. The electrode segments can be parallel and spaced apart from one another a distance at least ten times the nominal width, with one end of each segment mounted to a transverse distal portion of an electrically conductive lead coupling the electrode to a defibrillation pulse generator. Alternatively, segments can branch or radiate outwardly from a common junction. In yet another arrangement, electrode segments are portions of a single conductive path at the distal end of a lead from a pulse generator, arranged in either a spiral configuration or a serpentine configuration which can align electrode segments side by side, parallel and spaced apart. The electrode segments can be formed of composite conductors in the form of titanium ribbons or wires with a sputtered outer layer of platinum, or a silver core in a stainless steel tube, with a platinum layer formed onto the tube. The electrodes are highly compliant yet can provide large effective areas for defibrillation, enabling a transthoracic pulsing arrangement of two electrodes on opposite sides of the heart, implanted subcutaneously outside of the thoracic region.
    • 用于除颤的可植入电极由多个电极段形成。 每个段都相对长而窄。 电极段可以彼此平行和间隔至少十倍于标称宽度的距离,每个段的一端安装到将电极耦合到除颤脉冲发生器的导电引线的横向远端部分。 或者,片段可以从公共接头向外分支或辐射。 在另一种布置中,电极段是在来自脉冲发生器的引线的远端处的单个导电路径的部分,其布置成螺旋构造或蛇形结构,其可以并排并排隔离电极段。 电极段可以由具有溅射的铂外层或不锈钢管中的银芯的钛带或电线形式的复合导体形成,铂层形成在管上。 电极是高度依从性的,但可以为除颤提供大的有效区域,使得能够在心脏外侧皮下植入心脏两侧的两个电极的经胸部脉冲排列。