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Journal of Biomedical Optics

Fiber Bragg grating sensor-based communication assistance device
Author(s): Srivani Padma; Sharath Umesh; Shweta Pant; Talabattula Srinivas; Sundarrajan Asokan
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Paper Abstract

Improvements in emergency medicine in the form of efficient life supporting systems and intensive care have increased the survival rate in critically injured patients; however, in some cases, severe brain and spinal cord injuries can result in a locked-in syndrome or other forms of paralysis, and communication with these patients may become restricted or impossible. The present study proposes a noninvasive, real-time communication assistive methodology for those with restricted communication ability, employing a fiber Bragg grating (FBG) sensor. The communication assistive methodology comprises a breath pattern analyzer using an FBG sensor, which acquires the exhalation force that is converted into strain variations on a cantilever. The FBG breath pattern analyzer along with specific breath patterns, which are programmed to give specific audio output commands, constitutes the proposed fiber Bragg grating sensor-based communication assistive device. The basic communication can be carried out by instructing the patients with restricted communication ability to perform the specific breath patterns. The present approach is intended to be an alternative to the common approach of brain–computer interface in which an instrument is utilized for learning of brain responses.

Paper Details

Date Published: 22 August 2016
PDF: 5 pages
J. Biomed. Opt. 21(8) 086012 doi: 10.1117/1.JBO.21.8.086012
Published in: Journal of Biomedical Optics Volume 21, Issue 8
Show Author Affiliations
Srivani Padma, Indian Institute of Science (India)
Sharath Umesh, Indian Institute of Science (India)
Shweta Pant, Indian Institute of Science (India)
Talabattula Srinivas, Indian Institute of Science (India)
Sundarrajan Asokan, Indian Institute of Science (India)

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