Biomed Eng Lett.
2019 Feb;9(1):21-36. 10.1007/s13534-019-00097-w.
Current progress of photoplethysmography and SPO 2 for health monitoring
- Affiliations
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- 1Future Robotics Institute, Wadeda University, Tokyo, Japan. tamurat@aoni.wadeda.jp
- KMID: 2448395
- DOI: http://doi.org/10.1007/s13534-019-00097-w
Abstract
- A photoplethysmograph (PPG) is a simple medical device for monitoring blood fl ow and transportation of substances in the blood. It consists of a light source and a photodetector for measuring transmitted and refl ected light signals. Clinically, PPGs are used to monitor the pulse rate, oxygen saturation, blood pressure, and blood vessel stiff ness. Wearable unobtrusive PPG monitors are commercially available. Here, we review the principle issues and clinical applications of PPG for monitoring oxygen saturation.
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