Textile for heart valve prostheses: Fabric long‐term durability testing

心脏瓣膜 聚酯纤维 耐久性 材料科学 织物 假肢 生物医学工程 外科 复合材料 医学
作者
Frédéric Heim,Bernard Durand,Nabil Chakfé
出处
期刊:Journal of Biomedical Materials Research Part B [Wiley]
卷期号:92B (1): 68-77 被引量:15
标识
DOI:10.1002/jbm.b.31490
摘要

Abstract The rapid developments and success in percutaneous vascular surgery over the last two decades with the now common stent grafts implantation, make the noninvasive surgery technique today attractive even for heart valve replacement. Less traumatic for the patient and also less time consuming, percutaneous heart valve replacement is however at its beginning and restricted to end of life patients. The noninvasive procedure expects from the heart valve prosthesis material to be resistant and adapted to folding requirements of the implantation process (catheter). Polyester fabric could be a suited material for heart valve implanted percutaneously. Highly flexible and resistant, polyester fabric proved to be well adapted to the dynamic behavior of a valve and polyester (Dacron) is also widely used for vascular grafts implantation and shows good biocompatibility and durability. However, today there's no data available on long‐term durability of fabric used as heart valve material. The purpose of this work is to study the long term behavior of a microdenier polyester fabric construction under combined in vitro flexure and tension fatigue stress. In the novel in vitro testing technique presented, a fabric specimen was subjected to combined flexural and tensile fatigue generated by fluid flow under physiological pressure conditions. The results obtained show how flexural properties change with fatigue time, which reflects directly on the suitability of a fabric in such devices. It was also observed that these fabric structural changes directly influence the in vitro behavior of the textile heart valve prosthesis. © 2009 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2010
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
努力的小狗屁应助summy采纳,获得10
1秒前
1秒前
rloooooooo发布了新的文献求助10
2秒前
3秒前
3秒前
4秒前
wanci应助缓慢钢笔采纳,获得10
4秒前
4秒前
xiangoak完成签到 ,获得积分10
5秒前
6秒前
LiZheng发布了新的文献求助10
6秒前
Agoni发布了新的文献求助20
6秒前
wyblobin发布了新的文献求助10
7秒前
田様应助王志蛟采纳,获得20
7秒前
GK发布了新的文献求助10
7秒前
zqz发布了新的文献求助10
7秒前
卢浩发布了新的文献求助10
8秒前
JOY关注了科研通微信公众号
8秒前
小呆呆发布了新的文献求助10
8秒前
Bb完成签到,获得积分10
8秒前
桥豆麻袋完成签到,获得积分10
8秒前
花痴的翠容完成签到,获得积分10
9秒前
rloooooooo完成签到,获得积分20
9秒前
我爱科研111完成签到,获得积分10
9秒前
123jopop完成签到,获得积分10
9秒前
文艺的樱发布了新的文献求助10
11秒前
周周完成签到 ,获得积分10
11秒前
12秒前
猫好好完成签到,获得积分10
12秒前
holmes完成签到,获得积分10
13秒前
wyblobin完成签到,获得积分10
13秒前
daishuheng完成签到 ,获得积分10
13秒前
18969431868完成签到,获得积分10
13秒前
14秒前
勤劳怜寒发布了新的文献求助20
14秒前
余姓懒完成签到,获得积分10
15秒前
cure完成签到,获得积分10
16秒前
求文献完成签到,获得积分10
16秒前
16秒前
LiZheng完成签到,获得积分10
17秒前
高分求助中
Evolution 10000
Sustainability in Tides Chemistry 2800
юрские динозавры восточного забайкалья 800
English Wealden Fossils 700
A new species of Coccus (Homoptera: Coccoidea) from Malawi 500
A new species of Velataspis (Hemiptera Coccoidea Diaspididae) from tea in Assam 500
Diagnostic immunohistochemistry : theranostic and genomic applications 6th Edition 500
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3155565
求助须知:如何正确求助?哪些是违规求助? 2806679
关于积分的说明 7870461
捐赠科研通 2465012
什么是DOI,文献DOI怎么找? 1312079
科研通“疑难数据库(出版商)”最低求助积分说明 629860
版权声明 601892