Robert D. Dreher;William J. Linder;David B. Krig;William L. Zimmer;James O. Gilkerson;Jan D. Wald
发明人:
David B. Krig,James O. Gilkerson,Robert D. Dreher,Jan D. Wald,William J. Linder,William L. Zimmer
申请号：
US13246400
公开号：
US08306619B2
申请日:
2011.09.27
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A system and method for selectively treating a ventricular tachycardia based on sensed atrial and ventricular intervals from the patient's heart. A detection window of the ten most recent atrial and ventricular intervals are analyzed for the occurrence of either tachycardia or fibrillation. When a majority of the sensed intervals are satisfied, the apparatus starts a duration time interval. Ventricular intervals and atrial intervals are compare, ventricular interval greater than the atrial interval by a bias factor the system delivers tachycardia therapy to the heart. Alternatively, the method withholds tachycardia therapy to the heart when the atrial rate is classified as atrial fibrillation and the ventricular response is unstable.
