EMC modelling of cardiac pacemakers

Cardiac pacemakers are vital for many persons sufferering from heart diseases, and a malfunction of those devices can have terrible consequences for their wearers. Yet, in a signal environment evermore complex, the influence of external signals interfering with the normal operation of a pacemaker is getting stronger. We present an analytical linear model for a pacemaker and use it for a detailed investigation on the influences of external signals on the operation. In a second step, we take into account non-linear properties and investigate the most common signal types using the non-linear model.