Comparative study of stent performance under combined loading

A coronary artery stent is a medical device used to treat coronary artery disease. In the long term, there is a chance of restenosis, or stent fracture. Stainless steel, which has excellent mechanical properties, is the most common material for conventional stents. Because of their high yield stress...

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Main Author:	Mat Beyi, Abdul Fattah
Format:	Thesis
Language:	English English English
Published:	2023
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.uthm.edu.my/10968/1/24p%20ABDUL%20FATTAH%20MAT%20BEYI.pdf http://eprints.uthm.edu.my/10968/2/ABDUL%20FATTAH%20MAT%20BEYI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10968/3/ABDUL%20FATTAH%20MAT%20BEYI%20WATERMARK.pdf
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spelling	my-uthm-ep.109682024-05-15T07:19:52Z Comparative study of stent performance under combined loading 2023-07 Mat Beyi, Abdul Fattah TA Engineering (General). Civil engineering (General) A coronary artery stent is a medical device used to treat coronary artery disease. In the long term, there is a chance of restenosis, or stent fracture. Stainless steel, which has excellent mechanical properties, is the most common material for conventional stents. Because of their high yield stress and ductility, stainless steel stents can be safely extended. Stainless steel stents are permanent in the body and can cause complications. These studies, however, address the behaviour of stents under single and combined loading in terms of stress and strain. A new stent is constructed and tested under this loading. Computational analysis can be used to determine mechanical performance, anticipate possible problems, and direct stent optimization. As a result, preliminary evaluation using numerical methods enables a more in-depth analysis of some aspects of mechanical performance. In this thesis, six different stent designs (Palmaz, AVE S660, Bx Velocity, Multilink, Express and NIR) were evaluated. Best stent design in term of stress would be selected and then structure of the stent would be optimized. In Explicit numerical analysis, the deformation of the designs was simulated using ANSYS under internal pressure. AVE S660 stent shown most reaction as it shrinks to the middle while the highest and lowest von Mises stress is 352MPa and 190MPa for NIR and Express stent, respectively. The mechanical performance of a new design stent based on the previous evaluations was investigated in this study under single and combined loading 2023-07 Thesis http://eprints.uthm.edu.my/10968/ http://eprints.uthm.edu.my/10968/1/24p%20ABDUL%20FATTAH%20MAT%20BEYI.pdf text en public http://eprints.uthm.edu.my/10968/2/ABDUL%20FATTAH%20MAT%20BEYI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/10968/3/ABDUL%20FATTAH%20MAT%20BEYI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Mat Beyi, Abdul Fattah Comparative study of stent performance under combined loading
description	A coronary artery stent is a medical device used to treat coronary artery disease. In the long term, there is a chance of restenosis, or stent fracture. Stainless steel, which has excellent mechanical properties, is the most common material for conventional stents. Because of their high yield stress and ductility, stainless steel stents can be safely extended. Stainless steel stents are permanent in the body and can cause complications. These studies, however, address the behaviour of stents under single and combined loading in terms of stress and strain. A new stent is constructed and tested under this loading. Computational analysis can be used to determine mechanical performance, anticipate possible problems, and direct stent optimization. As a result, preliminary evaluation using numerical methods enables a more in-depth analysis of some aspects of mechanical performance. In this thesis, six different stent designs (Palmaz, AVE S660, Bx Velocity, Multilink, Express and NIR) were evaluated. Best stent design in term of stress would be selected and then structure of the stent would be optimized. In Explicit numerical analysis, the deformation of the designs was simulated using ANSYS under internal pressure. AVE S660 stent shown most reaction as it shrinks to the middle while the highest and lowest von Mises stress is 352MPa and 190MPa for NIR and Express stent, respectively. The mechanical performance of a new design stent based on the previous evaluations was investigated in this study under single and combined loading
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mat Beyi, Abdul Fattah
author_facet	Mat Beyi, Abdul Fattah
author_sort	Mat Beyi, Abdul Fattah
title	Comparative study of stent performance under combined loading
title_short	Comparative study of stent performance under combined loading
title_full	Comparative study of stent performance under combined loading
title_fullStr	Comparative study of stent performance under combined loading
title_full_unstemmed	Comparative study of stent performance under combined loading
title_sort	comparative study of stent performance under combined loading
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2023
url	http://eprints.uthm.edu.my/10968/1/24p%20ABDUL%20FATTAH%20MAT%20BEYI.pdf http://eprints.uthm.edu.my/10968/2/ABDUL%20FATTAH%20MAT%20BEYI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10968/3/ABDUL%20FATTAH%20MAT%20BEYI%20WATERMARK.pdf
_version_	1804890127366881280

Comparative study of stent performance under combined loading

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