John McCune Anderson,Cesar Oswaldo Navarro-Paredes,Rebecca Dimaio
申请号：
US13318162
公开号：
US20120046706A1
申请日:
2010.04.28
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An external defibrillator estimates the phase of ventricular defibrillation (VF) by deriving, from an ECG exhibiting VF, at least one quality marker representing the morphology of the ECG and, therefore, the duration of the VF. The duration of the VF is calculated as a function of the value (s) of the quality marker (s). The quality marker (s) may comprise any one or more of the median slope of the ECG, the average slope of the ECG, the ratio of the power in relatively high and low frequency bands of the ECG, and a measure of the density and amplitude of peaks in the ECG, over a predetermined period.
