Impact of inverse unequal height strut structure on the functional performance of an additively manufactured cardiovascular stent

Impact of inverse unequal height strut structure on the functional performance of an additively manufactured cardiovascular stent

Recently, additive manufacturing (AM) has been investigated as an innovative method to manufacture stents due to its capability in producing complex and customized structures. In this paper, the cardiovascular stents of M-type and N-type with inverse unequal height strut structure and N-type with eq...

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Veröffentlicht in:Journal of the mechanical behavior of biomedical materials 2023-10, Vol.146, p.106058-106058, Article 106058
Hauptverfasser: Wang, Qilong, Huang, Suxia, Miao, Jingtao, Chen, Zhiang, Li, Hezong, Zhao, Liguo, Yuan, Jiangyong
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container_title Journal of the mechanical behavior of biomedical materials
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creator Wang, Qilong
Huang, Suxia
Miao, Jingtao
Chen, Zhiang
Li, Hezong
Zhao, Liguo
Yuan, Jiangyong
description Recently, additive manufacturing (AM) has been investigated as an innovative method to manufacture stents due to its capability in producing complex and customized structures. In this paper, the cardiovascular stents of M-type and N-type with inverse unequal height strut structure and N-type with equal height strut structure were designed and manufactured by Selective Laser Melting (SLM). Following surface polishing, balloon expansion, plane compression and three-point bending experiments were carried out to evaluate the mechanical performance of the stent. The stents designed with inverse unequal height strut structure showed higher radial support performance and lower radial recoil when compared to the stents with uniform design. This study proved the feasibility of SLM in rapid manufacturing of cardiovascular stents that can be used for performance evaluation in design stage.
doi_str_mv 10.1016/j.jmbbm.2023.106058
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title Impact of inverse unequal height strut structure on the functional performance of an additively manufactured cardiovascular stent
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