发明名称 |
Cardiac arrhythmia detection system for an implantable stimulation device and method |
摘要 |
A cardiac event and arrhythmia detection system and method detects arrhythmic cardiac activity or other information from an electrogram signal of a heart. The system senses the electrogram signal through an electrogram lead, preliminarily processes the signal, and converts it to a plurality of discrete digital signals, each of which represents the magnitude of the electrogram signal at a prescribed sample time. The discrete digital signals are applied to both a cardiac event detector and a morphology detector. The morphology detector detects selected changes in the morphology (shape) of the electrogram signal, wherein such changes automatically control the sensitivity (gain and/or threshold) used to detect cardiac events. The occurrence of a prescribed amount of change in the detected morphology over time indicates the occurrence of a prescribed arrhythmic cardiac condition.
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申请公布号 |
US5718242(A) |
申请公布日期 |
1998.02.17 |
申请号 |
US19960670946 |
申请日期 |
1996.06.26 |
申请人 |
PACESETTER, INC. |
发明人 |
MCCLURE, KELLY H.;BORNZIN, GENE A. |
分类号 |
A61N1/362;A61N1/37;(IPC1-7):A61B5/045;A61N1/365 |
主分类号 |
A61N1/362 |
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