发明名称 |
Implantable medical device and method comprising means for detecting and classifying an arrhythmia |
摘要 |
An implantable medical device (100) is configured for generating a cardiogenic impedance signal representative of the cardiogenic impedance of at least a portion of a heart (10) of a subject (20) during at least a portion of cardiac cycle. A moment processor (132) calculates a moment parameter value based on the cardiogenic impedance signal. The moment parameter is representative of a weighted sum of impedance amplitudes within a time window centered at defined time instance within the cardiac cycle. The weights of the impedance amplitudes are further dependent on the length in time between the defined time instance and the point of time of the associated impedance amplitude. The moment parameter is of high diagnostic value and is employed by an arrhythmia classifier (132) in order to classify a detected arrhythmia of the heart (10), such as discriminate between hemodynamically stable or unstable arrhythmias and/or supraventricular or ventricular tachycardia. |
申请公布号 |
US8738120(B2) |
申请公布日期 |
2014.05.27 |
申请号 |
US201013696261 |
申请日期 |
2010.05.12 |
申请人 |
BJÖRLING ANDERS;HOLLMARK MALIN;SVENSSON TOMAS;HJELM STEFAN;NORÉN KJELL;JÄRVERUD KARIN;ST. JUDE MEDICAL AB |
发明人 |
BJÖRLING ANDERS;HOLLMARK MALIN;SVENSSON TOMAS;HJELM STEFAN;NORÉN KJELL;JÄRVERUD KARIN |
分类号 |
A61B5/0468 |
主分类号 |
A61B5/0468 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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