Published in

Elsevier, Acta Biomaterialia, 10(9), p. 8585-8592

DOI: 10.1016/j.actbio.2013.04.027

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Process of prototyping coronary stents from biodegradable Fe–Mn alloys

Journal article published in 2013 by Hendra Hermawan, Diego Mantovani
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Biodegradable stents are considered as a recent innovation and their feasibility and applicability have been proven lately. Research in this area has been focused on materials development and biological studies, but how to transform the developed biodegradable materials into the stents itself is less exposed. Current available stent technology, the laser cutting-based process, might be adapted to fabricate biodegradable stents. In this work, fabrication of biodegradable Fe-Mn stents that includes minitubes and stents fabrication, and stents characterization and testing were elaborated. A standard process for fabricating and testing stainless steel 316L stents was referred. Influences of process parameters to the physical, metallurgical and mechanical properties, and the quality of the produced stents were investigated. It was found that some steps of the standard process such as laser cutting can be directly applied; but changes on parameters are needed for annealing whereas alternatives are needed to replace electropolishing.