| 摘要 |
An analysis device (36) for identifying abnormal conditions in a heart (4), retrograde conduction and tachyarrhythmias in particular, is described. The analysis device (36) comprises a differentiating circuit (42) in order to differentiate ECG signals from the heart (4). The differentiated signal is plotted against the ECG signal, and the radius in the resulting curve is calculated in a calculator unit (44). The radius obtained is then compared with a threshold value in a comparator (46), and a sequence for the radius' progression in relation to the threshold value is obtained and compared with previously sequences stored in a sequence analyzer (50). <IMAGE> |
