Stent fabric fatigue of grafts supported by Z-stents versus ringed stents: An in vitro buckling test-Reference-Cited by-同舟云学术

Stent fabric fatigue of grafts supported by Z-stents versus ringed stents: An in vitro buckling test

Published:2013-06-02 Issue:7 Volume:28 Page:965-977
ISSN:0885-3282
Container-title:Journal of Biomaterials Applications
language:en
Short-container-title:J Biomater Appl

Author:

Lin Jing¹,Wang Lu¹,Guidoin Robert²,Nutley Mark³,Song Ge¹,Zhang Ze²,Du Jia¹,Douville Yvan²

Affiliation:

1. Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai, China

2. Department of Surgery, Laval University and Québec Biomaterials Institute, Quebec City, QC, Canada

3. Section of Vascular Surgery, Peter Lougheed Health Center, University of Calgary, Calgary, AB, Canada

Abstract

Stent-grafts externally fitted with a Z-shaped stents were compared to devices fitted with ringed stents in an in vitro oscillating fatigue machine at 200 cycles per minute and a pressure of 360 mmHg for scheduled durations of up to 1 week. The devices fitted with Z-stents showed a considerably lower endurance limit to buckling compared to the controls. The contact between the apexes of adjacent Z-stents resulted in significant damage to the textile scaffolds and polyester fibers due to the sharp angle of the Z-stents. The ringed stents did not cause any fraying in the textile scaffolds.

Publisher

SAGE Publications

Subject

Biomedical Engineering,Biomaterials

Link

http://journals.sagepub.com/doi/pdf/10.1177/0885328213488228

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