Mobile ECG Monitoring Device with Bioimpedance Measurement and Analysis

Abstract

The paper describes the improvement of a portable ECG device, which allows increasing the reliability of cardiovascular disease diagnosis using an electrocardiogram during ambulatory monitoring in conditions of free motion activity. The results of hardware and software development for correction of an ECG form are presented, which minimizes the loss of diagnostic information due to the distortion of the ECG form by the bioimpedance of the tissues and organs of the body that are located between the heart and electrodes of an ECG device. A portable ECG device with a bioimpedance measurement channel between the electrodes is described. The measurement channel includes a programmable computing device. Software provides calculation based on the measurement results of the bioimpedance components of the parameters of the parasitic electric filter, and synthesis of the transfer characteristic of the correction digital filter. The simulation results of the correction procedure of the ECG form in the TINA environment are presented. The simulation results show that the proposed solution can be used in portable heart monitoring systems.

Keywords

• ECG device
• Bioimpedance
• ECG monitoring
• ADS1298R