Design and modeling balloon-expandable coronary stent for manufacturability

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Suryawan, D.^1 ; Suyitno^2

Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta, Indonesia^1

Center for Innovation of Medical Equipments and Devices (CIMEDs), Department of Mechanical and Industrial Engineering, Gadjah Mada University, Yogyakarta, Indonesia^2

关键词: Applied pressure;    Coronary arteries;    Coronary artery disease;    Coronary stents;    Design and modeling;    Manufacturability;    Modeling and simulating;    Outer diameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012014/pdf
DOI  :  10.1088/1757-899X/172/1/012014

来源: IOP

【 摘 要 】

Coronary artery disease (CAD) is a disease that caused by narrowing of the coronary artery. The narrowing coronary artery is usually caused by cholesterol-containing deposit (plaque) which can cause a heart attack. CAD is the most common cause mortality in Indonesia. The commonly CAD treatment use the stent to opens or alleviate the narrowing coronary artery. In this study, the stent design is optimized for the manufacturability. Modeling is used to determine the free stent expansion due to applied pressure in the inner surface of the stent. The stress distribution, outer diameter change, and dogboning phenomena are investigated in the simulation. The result of modeling and simulating was analyzed and used to optimize the stent design before it is manufactured using EDM (Electric Discharge Machine) in the next research.