Optical Fibre-Based Pulse Oximetry Sensor with Contact Force Detection

• Published in: Sensors (Basel, Switzerland) Vol. 18; no. 11; p. 3632
• Main Authors: Liu, Chong, Correia, Ricardo, Ballaji, Hattan Khaled, Korposh, Serhiy, Hayes-Gill, Barrie R, Morgan, Stephen P
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI 26.10.2018; MDPI AG
• Subjects: contact pressure; fibre Bragg grating; oxygen saturation; photoplethysmography; plastic optical fibre; pulse oximetry; signal quality index; pulse oximetry; photoplethysmography; signal quality index; oxygen saturation; fibre Bragg grating; contact pressure; plastic optical fibre

A novel optical sensor probe combining monitoring of blood oxygen saturation (S O₂) with contact pressure is presented. This is beneficial as contact pressure is known to affect S O₂ measurement. The sensor consists of three plastic optical fibres (POF) used to deliver and collect light for pulse ox...