Journal
BIOMEDICAL OPTICS EXPRESS
Volume 10, Issue 3, Pages 1351-1364Publisher
OPTICAL SOC AMER
DOI: 10.1364/BOE.10.001351
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Nowadays, epidural space identification is made by using subjective and manual techniques characterized by failure rates up to 7%. In this work, we propose a fiber optic sensor technology based needle guidance system, that is directly inspired by the most common technique currently used for epidurals; through real-time strain measurements, the fiber Bragg grating integrated inside the needle lumen is able to effectively perceive the typical force drop occurring when the needle enters the epidural space. An in vivo swine study demonstrates the validity of our approach. paving the way for the development of lab-in-a-needle systems. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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