Baseline processing for a cardiac event detection system
First Claim
1. A cardiac event detection system for detecting a cardiac event in a patient comprising:
- (a) at least two electrodes for sensing an electrogram electrical signal from said patient'"'"'s heart;
(b) an implantable device coupled to said electrodes, said implantable device having an analog-to-digital circuit system contained therein for digitizing said electrogram electrical signal to produce electrogram segments;
(c) a processor contained in said implantable device and electrically coupled to said electrodes, said processor including means for determining whether an electrogram segment qualifies as a baseline segment, said processor further including means for tracking the failure of electrogram segments to qualify as baseline electrogram segments.
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Abstract
A system for the detection of cardiac events occurring in a human patient is provided. At least two electrodes are included in the system for obtaining an electrical signal from a patient'"'"'s heart. An electrical signal processor is electrically coupled to the electrodes for processing the electrical signal and a patient alarm means is further provided and electrically coupled to the electrical signal processor. The electrical signal is acquired in the form of electrogram segments, which are categorized according to heart rate, ST segment shift and type heart rhythm (normal or abnormal). Baseline electrogram segments are tracked over time.
21 Citations
10 Claims
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1. A cardiac event detection system for detecting a cardiac event in a patient comprising:
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(a) at least two electrodes for sensing an electrogram electrical signal from said patient'"'"'s heart; (b) an implantable device coupled to said electrodes, said implantable device having an analog-to-digital circuit system contained therein for digitizing said electrogram electrical signal to produce electrogram segments; (c) a processor contained in said implantable device and electrically coupled to said electrodes, said processor including means for determining whether an electrogram segment qualifies as a baseline segment, said processor further including means for tracking the failure of electrogram segments to qualify as baseline electrogram segments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification