A portable device for a modular system of patient ECG monitoring

The aim of this paper is to discuss the main characteristics of a low cost and consumption portable device, which is part of a system for ambulatory monitoring of patients with heart diseases. The solution is based on the microcontrollers MSP430F5419A and CC2540 (Bluetooth), both from Texas Instruments and the modem SIM908 from Simcom, which includes GSM/GPRS and GPS modules. This device is an attractive solution to use in systems where low cost is a critical issue. Three prototypes of the device were developed and tested. A total of 9 standardized ECG signals with different shapes, suggested by IEC 60601-2-25: 2011 for testing purpose were applied to the system. The developed device allows acquiring and transmitting the ECG signal in a safety way. According to the connectivity options it could be integrated in different systems for patient monitoring.