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    • 4. 发明申请
    • INTEGRATED CIRCUIT IMPLEMENTATION AND FAULT CONTROL SYSTEM, DEVICE, AND METHOD
    • 集成电路实现和故障控制系统,设备和方法
    • WO2009131749A2
    • 2009-10-29
    • PCT/US2009/035586
    • 2009-02-27
    • PROTEUS BIOMEDICAL, INC.BI, YafeiLI, HaifengZDEBLICK, MarkTHOMPSON, ToddLEICHNER, Robert
    • BI, YafeiLI, HaifengZDEBLICK, MarkTHOMPSON, ToddLEICHNER, Robert
    • A61N1/05A61N1/025A61N1/37A61N1/378
    • Apparatus and methods enable robust, reliable control for implantable medical devices, including cardiac pacemakers, defibrillators and cardiac resynchronization devices. Integrated circuits in the devices have minimized interfaces, can derive power from the interface signals, and have high voltage and latch-up protection. A device lead has a power generation circuit and a switching circuit using cascaded PMOS transistors for operating with a stable voltage despite fluctuations in the supplied voltage. The lead has control electronics that provide a very low impedance between an electrode and a lead conductor during most of the duration of a pacing pulse, but during a brief initial portion of the pacing pulse, provide a very high impedance to permit charging up a power supply that is local to the control electronics. A method of stabilizing the external impedance and a system for fault detection and fault recovery for an implantable device are also provided.
    • 装置和方法能够对可植入医疗装置(包括心脏起搏器,除颤器和心脏再同步装置)进行可靠的,可靠的控制。 器件中的集成电路具有最小化的接口,可以从接口信号中获取功率,并具有高电压和闭锁保护。 器件引线具有发电电路和使用级联PMOS晶体管的开关电路,用于尽管工作电压的波动,以稳定的电压工作。 引线具有控制电子学,其在起搏脉冲的大部分持续时间期间在电极和引线导体之间提供非常低的阻抗,但是在起搏脉冲的短暂初始部分期间,提供非常高的阻抗以允许充电电力 供应是本地控制电子产品。 还提供了稳定外部阻抗的方法和用于可植入装置的故障检测和故障恢复的系统。