A flow loop test was performed using a 3D printed version of the final venous stent design and porcine blood. As hoped, the stent did not migrate during the test.
In addition, stainless steel was found to be a hemocompatible material when compared to positive and negative controls.
The venous stent team is happy to report that they have won the outstanding undergraduate design award at the 2017 Northeast Biomedical Engineering Conference, earning third place in the design competition. The link to their presentation can be found below.
NEBEC Presentation – Venous Stent
Over the past couple of months, the team has been working to optimize the venous stent design. To accomplish this, ANSYS was used to perform flow and mechanical tests that were used to optimize every aspect of the stent.
ANSYS Fluent Flow Testing
ANSYS Static Structural Compression Testing
Results from these tests were analyzed using a scoring method the team developed. Parameters that were optimized include:
- Ring Shape
- Ring Height
- Connection Shape
- Connection Length
- Number of Connections
- Strut Thickness
- Strut Width
Finally, the team was able to determine the following design is optimized for use in treating May-Thurner Syndrome.