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Method and system for overdriving a heart chamber during a threshold search according to an AV delay
专利权人:
Laurence S. Sloman
发明人:
Laurence S. Sloman,Jeffery D. Snell
申请号:
US12483976
公开号:
US08170671B2
申请日:
2009.06.12
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An implantable medical device includes a lead, a pulse generator, an autothreshold module and a control module. The lead includes electrodes positioned within a heart. At least one of the electrodes senses cardiac signals. The pulse generator delivers a stimulus pulse through at least one of the electrodes. The autothreshold module performs a threshold search when operating in an autothreshold mode and causes atrial stimulus pulses to be delivered in an atrium of the heart at an overdrive rate during the threshold search. The control module determines an AV conduction time and applies an overdrive AV adjustment to the AV conduction time to generate an AV delay. The autothreshold module uses the AV delay in connection with delivering ventricular stimulus pulses to a ventricle of the heart.
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中国工程科技知识中心
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