Electrically Insulated Sensing of Respiratory Rate and Heartbeat Using Optical Fibers

Sensors

Ernesto Suaste-Gómez¹  Daniel Hernández-Rivera²  Anabel S. Sánchez-Sánchez² 

[1] Electrical Engineering Department, Bioelectronics Section, Centro de Investigación y de Estudios Avanzados del IPN, Av. IPN 2508, Col. San Pedro Zacatenco, C.P. 07360, D.F., Mexico;

关键词: fiber optics;    heart rate;    patient safety;    photoplethysmography;    respiratory rate;    sensors;   

DOI  :  10.3390/s141121523

来源: mdpi

【 摘 要 】

Respiratory and heart rates are among the most important physiological parameters used to monitor patients' health. It is important to design devices that can measure these parameters without risking or altering the subject's health. In this context, a novel sensing method to monitor simultaneously the heartbeat and respiratory rate signals of patients within an electrically safety environment was developed and tested. An optical fiber-based sensor was used in order to detect two optical phenomena. Photo-plethysmography and the relation between bending radius and attenuation of optical fiber were coupled through a single beam light traveling along this fiber.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.