IMPLANTABLE SENSORS HAVING CURRENT-BASED SWITCHES FOR IMPROVED FAULT TOLERANCE
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    发明申请
    IMPLANTABLE SENSORS HAVING CURRENT-BASED SWITCHES FOR IMPROVED FAULT TOLERANCE 审中-公开
    具有改进的故障容限的基于电流开关的可传感传感器

    公开(公告)号:US20070255352A1

    公开(公告)日:2007-11-01

    申请号:US11380538

    申请日:2006-04-27

    IPC分类号: A61N1/00

    CPC分类号: A61N1/37 A61N1/056 A61N1/3718

    摘要: The invention involves monitoring on a continuous or non-continuous basis the electrical drain of a chronically implanted physiologic sensor. One of a pair of conductors is monitored for excessive current drain. For example, if an inner sensor-signal bearing conductor (of a co-axial pair) contacts conductive body fluid or tissue (e.g., due to insulation breach), a measurement of current quickly reveals the fault. Accordingly, if an increase in or a supra-threshold electrical current drain is detected the sensor power supply is disengaged. In one form, dedicated physiologic sensor to electrical circuitry disposed within the AIMD. In another form, the AIMD is adapted to sense a physiologic parameter and deliver therapy (e.g., via one or more electrodes). A manual or automatic reset can be implemented in the event that the failure mode resolves itself. The reset can include criteria such as three consecutive sub-threshold current measurements before normal operation resumes.

    摘要翻译: 本发明涉及以连续或非连续的方式监测长期植入的生理传感器的电力消耗。 监控一对导体之一,以防过多的电流消耗。 例如,如果内部传感器信号承载导体(同轴对)与导电体液或组织接触(例如由于绝缘破坏),则电流测量会快速显示出故障。 因此,如果检测到增加或超阈值的电流消耗,则传感器电源被分离。 在一种形式中,专门的生理传感器设置在AIMD内的电路。 在另一种形式中,AIMD适于感测生理参数并递送治疗(例如,经由一个或多个电极)。 在故障模式自身解决的情况下,可以实现手动或自动复位。 复位可以包括诸如在正常操作恢复之前的三个连续的次阈值电流测量的标准。