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1. 发明授权

US5433729A Atrial defibrillator, lead systems, and method 失效
标题翻译：心房除颤器，牵引系统和方法
公开(公告)号：US5433729A
公开(公告)日：1995-07-18
申请号：US856514
申请日：1992-03-24
申请人： John M. Adams , Clifton A. Alferness , Paul E. Krevenhagen
发明人： John M. Adams , Clifton A. Alferness , Paul E. Krevenhagen
IPC分类号： A61N1/05 , A61N1/372 , A61N1/39
CPC分类号： A61N1/3918 , A61N1/056 , A61N1/0563 , A61N1/3956 , A61N1/3962 , A61N1/395 , A61N1/3987 , A61N2001/0585
摘要： An implantable atrial defibrillator provides a pulse of defibrillating electrical energy to the atria of the heart in synchronism with sensed R waves in response to non-coincident sensing of an R wave at first and second areas of the heart. The defibrillating pulse is provided after a predetermined number of consecutive R waves are non-coincidently sensed to assure reliable synchronization. The atrial defibrillator is also operational in a marker mode wherein a number of synchronization marker pulses are delivered to the heart for detection on an externally generated electrocardiogram. The atrial fibrillation detector of the defibrillator is normally disabled and is activated when the sensed ventricular activity indicates a probability of atrial fibrillation to conserve a depletable power source. A plurality of lead systems are also described for use with the atrial defibrillator which reduce the quantity of electrical energy required to defibrillate the heart and ensure that the delivered atrial defibrillating electrical energy is substantially confined to the atria of the heart.
摘要翻译：可植入心房除颤器响应于在心脏的第一和第二区域处的R波的不一致的感测，与感测到的R波同步地向心脏的心房提供除颤电脉冲。在不一致地感测到预定数量的连续R波之后提供除颤脉冲，以确保可靠的同步。心房除颤器还可以在标记模式中操作，其中多个同步标记脉冲被传送到心脏以便在外部产生的心电图上进行检测。除颤器的心房颤动检测器通常被禁用，并且当感测到的心室活动指示心房颤动的概率以节省可消耗的电源时被激活。还描述了与心房除颤器一起使用的多个引导系统，其减少了除颤心脏所需的电能的量，并确保输送的心房除颤电能基本上限于心脏的心房。

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