Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

Abstract

Due to the improvement of living standards, people’s attention to health has gradually increased. More and more people are willing to spend money and time on health management. This article reviews work on the vital signs monitoring system based on fiber optic interferometers, including the design of sensor structures, signal demodulation methods and data analysis. After a large number of trials, the system can achieve long-term stable heart rate (HR), respiration rate (RR) and body temperature monitoring, and the collected data can be used for health analysis. Due to the high sensitivity, low cost, and light weight of the interferometric fiber optic sensor, it can be integrated under a mattress or a cushion, which is very suitable for daily use. The system has great application prospects in the field of healthcare.

The role of optical fiber sensors in the new generation of healthcare devices: a review

“…250 Optical fiber sensors offer different advantages for healthcare applications, including high sensitivity allowing precise measurement of vital signs, miniaturization facilitating integration into wearable or implantable devices for continuous monitoring, immunity to electromagnetic interference ensuring compatibility with medical equipment, and multiplexing capability enabling simultaneous monitoring of diverse vital signs at different anatomical locations. 251 The employment of optical fiber sensors for monitoring vital signs is already well-consolidated.…”

A Wearable Sandwich Heterostructure Multimode Fiber Optic Microbend Sensor for Vital Signal Monitoring

“…is becoming more and more important [1], which can help evaluate and diagnose specific diseases at an early stage [2,3]. Among these vital signs, RR and HR are the most common indicators that are related to a wide range of age-related diseases that are closely associated with a variety of geriatric diseases, such as cardiac arrhythmias and coronary artery disease [4].…”

Human Pulse and Respiration Monitoring: Reconfigurable and Scalable Balloon‐Shaped Fiber Wearables

“…[20][21][22] For monitoring these pulse waveforms and respiration rates, fiber based wearables are mostly reported. [8,11,[23][24][25][26] The main key factors of any wearable system are its flexibility and stretchability. To realize these aspects the embedding material properties and the probe's configurations are the main two key factors.…”

“…[ 20–22 ] For monitoring these pulse waveforms and respiration rates, fiber based wearables are mostly reported. [ 8,11,23–26 ]…”