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1. 发明授权

US06366810B1 Deterministic and jitter-free dual-chamber cardiac pacemaker 有权
标题翻译：确定性和无抖动的双室心脏起搏器
公开(公告)号：US06366810B1
公开(公告)日：2002-04-02
申请号：US09395432
申请日：1999-09-14
申请人： Sharon Johnson , Frank Dropps , Jean-Cheui Hsung , James Marcotte
发明人： Sharon Johnson , Frank Dropps , Jean-Cheui Hsung , James Marcotte
IPC分类号： A61N118
CPC分类号： A61N1/368
摘要： A deterministic and jitter-free dual chamber brady pacemaker utilizes both a programmed microprocessor and a hardware state machine, both of which are coupled to a real time clock (RTC), random access memory (RAM) and a common escape interval timer. Time of occurrence (TOC) data representative of the time and nature of atrial and ventricular sensed events and pacing events is stored in the RAM. Escape interval periods are timed by the escape interval timer. The microprocessor is operable in both an active mode and an inactive mode without interrupts. In response to the receipt of wakeup commands, the microprocessor operates in the active mode and uses the TOC data from the RAM to reset the escape interval timer to a desired next event interval. The hardware state machine uses the common escape interval timer for timing timeout events and atrial and ventricular sensed events such that pacing pulses are delivered in a determinate manner.
摘要翻译：确定性和无抖动的双室舒适起搏器利用编程的微处理器和硬件状态机，它们都耦合到实时时钟（RTC），随机存取存储器（RAM）和公共逃逸间隔定时器。代表心房和心室感觉事件和起搏事件的时间和性质的发生时间（TOC）数据存储在RAM中。逃生间隔时间由转义间隔定时器定时。微处理器在活动模式和非活动模式下均可操作，无中断。响应于接收到唤醒命令，微处理器以活动模式操作，并且使用来自RAM的TOC数据将转义间隔定时器重置为期望的下一个事件间隔。硬件状态机使用公共逃逸间隔定时器来定时超时事件和心房和心室感测事件，使得起搏脉冲以确定的方式被递送。

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