发明名称 |
TACHYARRHYTHMIA DETECTION AND DISCRIMINATION BASED ON CURVATURE PARAMETERS |
摘要 |
Estimating a frequency of a sampled cardiac rhythm signal and classifying the rhythm. The received signal is sampled and transformed into a curvature series. A lobe in the curvature series corresponds to a characteristic point in the sampled series. Characteristic points are selected based on a time of a lobe in the curvature series and, in one embodiment, an amplitude of the signal at the time of the lobe. A frequency of the sampled series is estimated by autocorrelating a function of the series of the characteristic points. In one embodiment, the function is a time difference function. The rhythm is classified by plotting the timewise proximity of characteristic points derived from an atrial signal with characteristic points derived from a ventricular signal. Regions of the plot are associated with a particular rhythm and the grouping of the data corresponds to the classification. |
申请公布号 |
WO2005002669(A3) |
申请公布日期 |
2005.05.12 |
申请号 |
WO2004US20723 |
申请日期 |
2004.06.28 |
申请人 |
CARDIAC PACEMAKERS, INC.;SWEENEY, ROBERT, J.;RICCI, CARLOS |
发明人 |
SWEENEY, ROBERT, J.;RICCI, CARLOS |
分类号 |
A61B5/0245;A61B5/0452;A61B5/046;A61B5/0464;A61N1/362;A61N1/39;G06K9/00 |
主分类号 |
A61B5/0245 |
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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