PC based wireless vital sign monitor using zigbee communication

Abstract

Electrocardiogram (ECG), SpO2 and body temperature are vital sign for human body. In some condition, these signals are monitored using vital sign monitor to determine patient’s health condition. Vital sign monitor usually placed beside patient’s bed and doctor need to come to monitor patient’s condition. In this research, we design low cost wireless PC based vital sign monitor. The design device consist of acquisition modules to capture ECG signal, SpO2 and body temperature and additional device to monitor flow rate of fluid from infusion pump. All the signal are displayed into a tiny graphic LCD while the all signal’s data transmitted into PC via zigbee communication. In PC display, we show ECG and SpO2 signal, body temperature, heart rate and flow rate. From device testing, the device worked well for maximum transmission distance of 50 meters. By this condition, we can monitored patient’s vital sign from another room. So doctor or nurse does not need to come to patient’s room to monitor patient’s vital sign.