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Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients

We introduce a new tongue prosthetic assist device (TPAD), which shows the first prosthetic application for potential treatment of swallowing difficulty in dysphagia patients. The native tongue has a number of complex movements that are not feasible to mimic using a single mechanical prosthetic devi...

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Autores principales: Shayan, Mahdis, Gildener-Leapman, Neil, Elsisy, Moataz, Hastings, Jack T., Kwon, Shinjae, Yeo, Woon-Hong, Kim, Jee-Hong, Shridhar, Puneeth, Salazar, Gabrielle, Chun, Youngjae
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862307/
https://www.ncbi.nlm.nih.gov/pubmed/31671519
http://dx.doi.org/10.3390/ma12213555
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author Shayan, Mahdis
Gildener-Leapman, Neil
Elsisy, Moataz
Hastings, Jack T.
Kwon, Shinjae
Yeo, Woon-Hong
Kim, Jee-Hong
Shridhar, Puneeth
Salazar, Gabrielle
Chun, Youngjae
author_facet Shayan, Mahdis
Gildener-Leapman, Neil
Elsisy, Moataz
Hastings, Jack T.
Kwon, Shinjae
Yeo, Woon-Hong
Kim, Jee-Hong
Shridhar, Puneeth
Salazar, Gabrielle
Chun, Youngjae
author_sort Shayan, Mahdis
collection PubMed
description We introduce a new tongue prosthetic assist device (TPAD), which shows the first prosthetic application for potential treatment of swallowing difficulty in dysphagia patients. The native tongue has a number of complex movements that are not feasible to mimic using a single mechanical prosthetic device. In order to overcome this challenge, our device has three key features, including (1) a superelastic nitinol structure that transfers the force produced by the jaws during chewing towards the palate, (2) angled composite tubes for guiding the nitinol strips smoothly during the motion, and (3) highly stretchable thin polymeric membrane as a covering sheet in order to secure the food and fluids on top of the TPAD for easy swallowing. A set of mechanical experiments has optimized the size and angle of the guiding tubes for the TPAD. The low-profile TPAD was successfully placed in a cadaver model and its mobility effectively provided a simplistic mimic of the native tongue elevation function by applying vertical chewing motions. This is the first demonstration of a new oral device powered by the jaw motions in order to create a bulge in the middle of the mouth mimicking native tongue behavior.
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spelling pubmed-68623072019-12-05 Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients Shayan, Mahdis Gildener-Leapman, Neil Elsisy, Moataz Hastings, Jack T. Kwon, Shinjae Yeo, Woon-Hong Kim, Jee-Hong Shridhar, Puneeth Salazar, Gabrielle Chun, Youngjae Materials (Basel) Article We introduce a new tongue prosthetic assist device (TPAD), which shows the first prosthetic application for potential treatment of swallowing difficulty in dysphagia patients. The native tongue has a number of complex movements that are not feasible to mimic using a single mechanical prosthetic device. In order to overcome this challenge, our device has three key features, including (1) a superelastic nitinol structure that transfers the force produced by the jaws during chewing towards the palate, (2) angled composite tubes for guiding the nitinol strips smoothly during the motion, and (3) highly stretchable thin polymeric membrane as a covering sheet in order to secure the food and fluids on top of the TPAD for easy swallowing. A set of mechanical experiments has optimized the size and angle of the guiding tubes for the TPAD. The low-profile TPAD was successfully placed in a cadaver model and its mobility effectively provided a simplistic mimic of the native tongue elevation function by applying vertical chewing motions. This is the first demonstration of a new oral device powered by the jaw motions in order to create a bulge in the middle of the mouth mimicking native tongue behavior. MDPI 2019-10-30 /pmc/articles/PMC6862307/ /pubmed/31671519 http://dx.doi.org/10.3390/ma12213555 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Shayan, Mahdis
Gildener-Leapman, Neil
Elsisy, Moataz
Hastings, Jack T.
Kwon, Shinjae
Yeo, Woon-Hong
Kim, Jee-Hong
Shridhar, Puneeth
Salazar, Gabrielle
Chun, Youngjae
Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients
title Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients
title_full Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients
title_fullStr Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients
title_full_unstemmed Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients
title_short Use of Superelastic Nitinol and Highly-Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients
title_sort use of superelastic nitinol and highly-stretchable latex to develop a tongue prosthetic assist device and facilitate swallowing for dysphagia patients
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6862307/
https://www.ncbi.nlm.nih.gov/pubmed/31671519
http://dx.doi.org/10.3390/ma12213555
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