专利名称：APPARATUS AND METHOD FOR CAPTURE
DETECTION IN A CARDIAC STIMULATOR
发明人：HOUSWORTH, Craig M.,SCHROEPPEL,
Edward A.
申请号：EP94927356.9申请日：19940908公开号：EP0717646B1公开日：19970521
摘要：A capture detection circuit for an implantable cardiac stimulator. A signaldetected by an electrode in the heart following delivery of a stimulating pulse is
amplified, bandpass and highpass filtered, rectified, integrated over a selected window oftime starting at a selected delay after delivery of the stimulating pulse, and applied totwo comparators having different reference values. If the integrated signal exceeds thefirst reference value, the first comparator output goes high. If the integrated signalexceeds the second reference value, the second comparator goes high. If both
comparators remain low, non-capture is indicated. If the first comparator goes high andthe second comparator remains low, capture is indicated. If the second comparator goeshigh, an intrinsic contraction is indicated. The window of integration can be extended todistinguish capture from intrinsic contraction.
申请人：INTERMEDICS INC
地址：US
国籍：US
代理机构：Bayliss, Geoffrey Cyril
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