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Articles

Biodegradable magnesium coronary stents: material, design and fabrication

, , , , , , , & show all
Pages 936-945 | Received 27 Nov 2012, Accepted 19 Jul 2013, Published online: 20 Sep 2013
 

Abstract

Biodegradable cardiovascular stents in magnesium (Mg) alloys constitute a promising option for a less intrusive treatment, due to their high compatibility with the body tissue and intrinsic dissolution in body fluids. The design and fabrication aspects of this medical device require an integrated approach considering different aspects such as mechanical properties, corrosion behaviour and biocompatibility. This work gathers and summarises a multidisciplinary work carried out by three different research teams for the design and fabrication of Mg stents. In particular, the paper discusses the design of the novel stent mesh, the deformability study of the Mg alloys for tubular raw material and laser microcutting for the realisation of the stent mesh. Although, the results are not fully validated as the device has not been fully tested, they show the feasibility of the used approaches, as the first prototype stents in Mg alloy were produced successfully.

Acknowledgements

The authors would like to express their gratitude to Fondazione CaRiTRO.

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