About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Stent Design Investigation for Polymeric and Metallic Materials using Finite Element Modeling of the Crimping Process |
Author(s) |
Caralyn Collins, Cheng Sun, Rao Fu, Yonghui Ding, Guillermo Ameer |
On-Site Speaker (Planned) |
Caralyn Collins |
Abstract Scope |
Driven by the need for bioresorbable vascular scaffolds (BVS), interest in the use of polymers as primary stent materials has increased dramatically in recent years. Such stents are highly compatible with recent advances in additive manufacturing, enhancing ease of geometric customization and offering additional drug elution potential. Contrasting with existing metal stent literature, there is an apparent lack of literature regarding systematic, optimized stent design specifically for polymer profiles. To ensure optimal performance of the BVS in crimping, a step involving large mechanical deformation, topology of the stent must be considered in tandem with the selected material profile. This study uses ABAQUS to establish a framework for predicting BVS performance during crimping, taking into consideration differences in BVS topology alongside both representative metal and polymer material profiles. Stress profile and deformation analysis is completed to inform future stent design and to fully harness the potential of additive manufacturing processes. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |