A new low-cost and portable optical device for real-time assessment of tissue microcirculation

Abstract

In this work, we have developed a new portable optical device to assess tissue microcirculation. Our system is based on the idea that we can calculate tissue oxygen saturation by analyzing tissue interaction with light at two different wavelengths. The optical device involves measuring the quantitative tissue oxygen saturation value using information obtained from light-tissue interaction with sensors designed to functionally connect to the patient. For this purpose; two LEDs which enable to emission in near-infrared wavelengths and a photodiode which capable of measuring the intensity of the light reflected from the tissue were used with a dedicated hardware and software system. The optical device is fast, reliable and reasonable price considering similar systems. Additionally, it has a user friendly interface and let its users store data in SD Card. The results suggested that the optical device may sensitive to measure the tissue oxygen saturation levels in vivo. The optical system has the potential to improve bedside monitoring device for assessing tissue viability.