A Flexible Dry ECG Patch for Heart Rate Variability Monitoring

A flexible dry ECG patch for continuous heart rate variablity monitoring is presented in this paper. A flexible dry ECG patch with a polymide substrate was designed. The hardware compromises of an ECG front end, an ultra low power controller for wireless Bluetooth data transmission and a power management block. The ECG electrodes were also fabricated on the flip-side of the same polymide substrate. The electrodes were screen printed on the flexible polymide substrate using carbon ink. We demonstrate the working of the flexible dry ECG patch with experimental data on a human subject.