A method and device for filtering out of the bottom lines fluctuations of an electrocardiogram

摘要

In the prior art, methods for filtering out baseline fluctuations from an electrocardiogram exist which use a high-pass filter whose lower cut-off frequency is below that characteristic of heart signals at the lowest-possible heartbeat rate. In order to increase the efficiency of the baseline filtering, the invention calls for the instantaneous heartbeat rate to be determined from the electrocardiogram by a device (4), and the lower cut-off frequency of the filter (2) to be modified as a function of the result of this determination in such a way that the lower cut-off frequency is increased with increasing heartbeat rate and is decreased with decreasing hearbeat rate.