Project Description

The scope of this project is to design, model, and analyze (CFD) a prototype endovascular device that improves aneurysm neck protection during embolic device placement, while reducing blood flow obstruction in the parent artery thus minimizing ischemic risk. This website details the design process for the Balloon-Stent, a next generation, endovascular aneurysm treatment device. This temporary device aims to improve aneurysm neck protection during embolic placement, while maintaining sufficient blood flow in the parent artery, thus minimizing ischemic risk. While the Balloon-Stent is deployed, the surgeon will be able to treat the aneurysm with the desired treatment method.  Some important requirements for the Balloon-Stent are that the stent must be self-expandable, the balloon must inflate to occlude blood flow into aneurysm, and the fractional flow reserve (FFR) must be 0.75 or greater to maintain sufficient blood flow. Through physical testing, analytical analysis, and CFD, it was found that the compression force of the stent at activation temperature is 3.08 N and increased by 67.5% within a 10℃ increase, and that the FFR is 0.91.