Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents

With the application of bioresorbable materials in self-expandable braided stent, current analytical model for radial compression property of the stent is not applicative if considering the constraint between the polymeric filaments. Poly (l-lactic acid) (PLLA) is one of the broadly used bioresorbab...

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Autores principales:	Gutian Zhao, Muqing Liu, Dongwen Deng, Yuan Tian, Jie Cheng, Gensheng Wu, Yi Zhang, Zhonghua Ni
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Poly (l-lactic acid) Self-expandable braided stent Constraint Radial compression Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/0c5642968469470e8e0b0d433b95ac84
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id	oai:doaj.org-article:0c5642968469470e8e0b0d433b95ac84
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spelling	oai:doaj.org-article:0c5642968469470e8e0b0d433b95ac842021-11-24T04:25:08ZEffects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents0142-941810.1016/j.polymertesting.2020.106963https://doaj.org/article/0c5642968469470e8e0b0d433b95ac842021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321929https://doaj.org/toc/0142-9418With the application of bioresorbable materials in self-expandable braided stent, current analytical model for radial compression property of the stent is not applicative if considering the constraint between the polymeric filaments. Poly (l-lactic acid) (PLLA) is one of the broadly used bioresorbable materials in stents due to its superior biocompatibility and mechanical properties. The radial compression properties of PLLA braided stents were investigated by considering two types of constraints between filaments in this work. Weak constraint indicates the friction between filaments of PLLA stents and strong constraint indicates the close looped end (extremity configuration) of PLLA stents. It is found that the radial stiffness can be enhanced by two types of constraints, and strong constraint improves the peak compression force slightly in the radial compression behavior of PLLA braided stents. This work provides suggestions for the study of PLLA braided stents theoretical development.Gutian ZhaoMuqing LiuDongwen DengYuan TianJie ChengGensheng WuYi ZhangZhonghua NiElsevierarticlePoly (l-lactic acid)Self-expandable braided stentConstraintRadial compressionPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106963- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Poly (l-lactic acid) Self-expandable braided stent Constraint Radial compression Polymers and polymer manufacture TP1080-1185
spellingShingle	Poly (l-lactic acid) Self-expandable braided stent Constraint Radial compression Polymers and polymer manufacture TP1080-1185 Gutian Zhao Muqing Liu Dongwen Deng Yuan Tian Jie Cheng Gensheng Wu Yi Zhang Zhonghua Ni Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
description	With the application of bioresorbable materials in self-expandable braided stent, current analytical model for radial compression property of the stent is not applicative if considering the constraint between the polymeric filaments. Poly (l-lactic acid) (PLLA) is one of the broadly used bioresorbable materials in stents due to its superior biocompatibility and mechanical properties. The radial compression properties of PLLA braided stents were investigated by considering two types of constraints between filaments in this work. Weak constraint indicates the friction between filaments of PLLA stents and strong constraint indicates the close looped end (extremity configuration) of PLLA stents. It is found that the radial stiffness can be enhanced by two types of constraints, and strong constraint improves the peak compression force slightly in the radial compression behavior of PLLA braided stents. This work provides suggestions for the study of PLLA braided stents theoretical development.
format	article
author	Gutian Zhao Muqing Liu Dongwen Deng Yuan Tian Jie Cheng Gensheng Wu Yi Zhang Zhonghua Ni
author_facet	Gutian Zhao Muqing Liu Dongwen Deng Yuan Tian Jie Cheng Gensheng Wu Yi Zhang Zhonghua Ni
author_sort	Gutian Zhao
title	Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
title_short	Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
title_full	Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
title_fullStr	Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
title_full_unstemmed	Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
title_sort	effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/0c5642968469470e8e0b0d433b95ac84
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Effects of constraint between filaments on the radial compression properties of poly (l-lactic acid) self-expandable braided stents

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