Qualification of additively manufactured blood vessel models for the evaluation of braided stent designs

Start Page
321
End Page
333
Citation
International Conference on Additive Manufacturing in Products and Applications (AMPA 2020)
Contribution to Conference
International Conference on Additive Manufacturing in Products and Applications, AMPA 2020 
Publisher DOI
10.1007/978-3-030-54334-1_23
Publisher
Springer
For testing new designs of braided stents, an animal free anatomical model is needed, in which different Flow Diverter (FD) designs can be implanted and evaluated. The geometric replication of vessels by additively manufactured (AM) models has already been proven for aneurysm coiling within the neurointerventional training model HANNES. Nevertheless, since FDs closely interact with the vessel wall, AM vessel model materials need to be qualificated for the use case. Therefore, this paper presents an appropriate test bench for AM material tests and characterizes AM impact factors. As an outlook, different AM materials are tested and compared. Additionally, the impact of the postprocessing is investigated for one material. The paper shows the qualification of AM models for animal free design tests of a medical devices, where an objective test environment gives the opportunity to qualify AM materials for the medical use case.
Schlagworte
Additive Manufacturing (AM)
Medical Device Validation
Product Development
Biomedical Design
AM Material Test Setup
DDC Class
610: Medizin