Handheld Pulse Oximeter Based on Single Board Computer Raspberry Pi B

Self-monitoring enables patients to become more active participants in their health care, home pulse oximetry can provide objective data for determining health status and the possible need for medical consultation or interventions. Pulse oximetry is a non-invasive and continuous method for monitoring the blood oxygen saturation level. Pulse oximetry has gained acceptance in the medical community caused low costs and easy to operation. Prototype pulse oximeter in previous research still use system based on microcontroller. Microcontroller system is ideal for building robotic systems but microcontroller system has a weakness in terms of processing the signal. During the last decade, development of single board computer has provided smaller, faster and more affordable. The aim of this study to develop a prototype handheld oxygen saturation based on single-board computer Raspberry Pi for home care. The added value of this research is using the single board computer system and the graphical user interfaces were designed to become more informative. This study uses experimental research with a quantitative approach. The results of this study successfully developed a prototype pulse oximeter equipped by LCD touch screen that can display the value of oxygen saturation (SpO2), pulse rate (PR) and photoplethysmography (PPG). The reliability of oxygen saturation and heart rate were quite stable from +/- 1% to +/- 2% compare gold standard, with standard deviation range of 0.577 to 1.