使用血液子原理进行心脏支架的数值建模和分析
Seethalakshmi R1, Hariharan S2, Hemalatha Karnan2
1School of Arts Sciences, Humanities and Education, SASTRA Deemed University, Thanjavur, Tamil Nadu, India.
概括
这项研究分析了动脉样硬化条件下的心脏支架性能,模拟了血效应. 结果提供了对支架设计和材料选择的见解,以改善血流动力学.
科学领域:
- 生物医学工程 生物医学工程
- 心血管研究研究心血管研究
- 材料科学 材料科学 材料科学
背景情况:
- 动脉样硬化阻碍了血液流动,这是由于动脉斑块的积累造成的.
- 血液子原理发生在连续的动脉斑块形成时.
- 了解压力和剪切应力对于支架设计至关重要.
研究的目的:
- 在动脉样硬化诱导的血条件下模拟心脏支架行为.
- 用计算模拟来评估支架的机械性能.
- 评估不同生物材料对支架疗效的影响.
主要方法:
- 心脏支架的设计和封装在一个crimper.
- 使用ANSYS静态和瞬态结构模拟进行验证.
- 对五种生物材料的分析:不钢316,,,白金和Poly乳酸.
主要成果:
- 结构分析 (静态和短暂) 进行了1秒和10秒.
- 评估总变形,等效应力和支架上的应变.
- 带有和没有缩器的支架性能的比较.
结论:
- 这项研究提供了对动脉样硬化中的血动态的见解,影响了压力和凝血.
- 在各种力量下模拟的支架行为为未来的设计改进提供了有价值的数据.
- 结果为改善心脏支架功能提供了更好的材料选择指南.
更多相关视频
09:20Lumped-Parameter and Finite Element Modeling of Heart Failure with Preserved Ejection Fraction
Published on: February 13, 2021
6.4K
06:18Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
Published on: December 6, 2024
476
相关概念视频
00:57Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models
Physiological pharmacokinetic models, often called flow-limited or perfusion models, typically assume a swift drug distribution between tissue and venous blood, creating a rapid drug equilibrium. This premise is based on the idea that drug diffusion is extremely fast, and the cell membrane presents no barrier to drug permeation. In this scenario, where no drug binding occurs, the drug concentration in the tissue equals that of the venous blood leaving the tissue. This greatly simplifies the...
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...