Um modelo de eletrocardiógrafo portátil de baixo consumo

Abstract

In spite of the fast development of the medical sector, cardiovascular diseases are still the major cause of death in the world. The identification of the patient who presents a risk situation that may result in death is still a challenge. The number of systems to monitor vital signs has increased in the last years, with more compact devices, and a range of parameters that help the medical team to monitor the development of the patients\' clinical situation. This work presents the modeling and development of a low-power portable ECG to be used as input of the system to monitor cardiac signals, generated in PROCADNF-1493/2007. The aim of this device is to promote a communication with a computer enabling the analysis of the ECG signal using a software for research in this area. It was used a wireless communication system using the Zigbee technology with the band of 2.4GHz and a range of approximately 70 meters without a wall. This promotes the analysis of the ECG in movement, in which the patient has the possibility to move. To support the construction of such system, this work presents an architecture review, a state-of-the-art in hardware, as well as a study and a model specification of a low-power portable ECG used to aid the research that aim the monitoring of vital signs. Finally, a qualitative analysis of the constructed hardware is provided.