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INTRACARDIAC IMPEDANCE AND ITS APPLICATIONS
专利权人:
CARDIAC PACEMAKERS; INC.
发明人:
Yunlong Zhang,James O. Gilkerson,Yongxing Zhang,Loell Boyce Moon
申请号:
US13888835
公开号:
US20140336521A1
申请日:
2013.05.07
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A system to measure intracardiac impedance includes implantable electrodes and a medical device. The electrodes sense electrical signals of a heart of a subject. The medical device includes a cardiac signal sensing circuit coupled to the implantable electrodes, an impedance measurement circuit coupled to the same or different implantable electrodes, and a controller circuit coupled to the cardiac signal sensing circuit and the impedance measurement circuit. The cardiac signal sensing circuit provides a sensed cardiac signal. The impedance measurement circuit senses intracardiac impedance between the electrodes to obtain an intracardiac impedance signal. The controller circuit determines cardiac cycles of the subject using the sensed cardiac signal, and detects tachyarrhythmia using cardiac-cycle to cardiac-cycle changes in a plurality of intracardiac impedance parameters obtained from the intracardiac impedance signal.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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