摘要
植入病体的食管支架受其结构特征和服役环境的影响,易产生疲劳破坏,从而引发严重的并发症。目前对食管支架疲劳性能的研究内容涉及载荷谱、应力-应变关系、支架疲劳裂纹和疲劳寿命预测等方面;研究方法有理论分析、数值模拟和实验研究3种。对测定食管支架疲劳性能的各种分析方法及局限性进行详细地阐述和总结,并对食管支架后期的研究进行展望。
Due to the effect of structural characteristics and service environment of esophageal stent,fatigue damage of esophageal stent is developed easily,which may lead to serious complications.At present,the researches on fatigue performance of esophageal stent involve load spectrum,stress-strain relationship,fatigue crack and fatigue life prediction,and there are three main research method:theoretical analysis,numerical simulation and experimental research.In this paper,various analysis methods and limitations for measuring fatigue performance of esophageal stent are elaborated and summarized in detail,and the future research of esophageal stent is prospected.
作者
王彬
倪晓宇
潘长网
WANG Bin;NI Xiaoyu;PAN Changwang(School of Mechanical and Electronic Engineering,Nanjing Forestry University,Nanjing 210037,China;Nanwei Medical Technology Co.,Ltd,Nanjing 210061,China)
出处
《医用生物力学》
EI
CAS
CSCD
北大核心
2021年第2期324-329,共6页
Journal of Medical Biomechanics
基金
江苏省六大人才高峰项目(GDZB-040)
国家自然科学基金项目(51005124)。
关键词
食管支架
疲劳寿命
蠕动波
数值模拟
体外试验
esophageal stent
fatigue life
peristalsis wave
numerical simulation
in vitro experiment
