Finite Element Analysis of Mechanical Behaviors of Coronary Stent

Eshghi, N.; Hojjati, Mehdi; Imani, Misagh; Goudarzi, Ali

doi:10.1016/j.proeng.2011.04.506

Cited by 35 publications

(19 citation statements)

References 15 publications

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“…Geometrical illustration of balloon model was formed based on standard reference [14] . The length of the balloon was 25 mm and as a medium to inflate the coronary stent.…”

Section: Balloonmentioning

confidence: 99%

Finite element analysis of polyether ether ketone 450G biomaterial used as cardiovascular stent implant

Kumar¹,

Ramesha²,

Sharanraj³

2019

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Aim: This research paper aims to modeling and finite element analysis of PEEK 450G biomaterial used as cardiovascular stent implant. Methods: Commercially available CATIA V5 and ABAQUS 6.0 software were used for modeling and finite element analysis of cardiovascular stent implant to evaluate the radial displacement, stress distribution, and plastic strain in the proximal area of PEEK 450G biomaterial under pressure load conditions of 0.8, 1.0, and 1.2 MPa. Results: The results show that, both in non-linear bending analysis and non-linear pressure analysis, that PEEK 450G stent exhibits very good radial expansion and lowest stress concentration in plaque and also which is well below the yield level (100 MPa), however plastic strain is quite high. Conclusion: The blood circulation will be appropriate and also chances of vessel damage may be reduced more. Hence the study reveals that PEEK 450G can be best alternate biomaterial appropriate for cardiovascular stent implant.

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“…Geometrical illustration of balloon model was formed based on standard reference [14] . The length of the balloon was 25 mm and as a medium to inflate the coronary stent.…”

Section: Balloonmentioning

confidence: 99%

Finite element analysis of polyether ether ketone 450G biomaterial used as cardiovascular stent implant

Kumar¹,

Ramesha²,

Sharanraj³

2019

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“…The biodegradable scaffold molding device was used as the experimental platform. The filamentous PLA was selected as the scaffold molding material, and the outlet diameter of the printing nozzle d was 0.4 mm and 0.2 mm [7], [8]. The printing nozzle temperature T was 200 degrees, and the printing speed F was 400 mm/min.…”

Section: The Effect Of Nozzle Aperture On the Quality Of Vascular Stentmentioning

confidence: 99%

3D Printing and Characterization of the Biodegradable Vascular Stent

Xu¹,

Li²,

Shi³

et al. 2018

IJCEE

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Vascular stent is an important kind of medical device for the treatment of the vessel occlusion. In this work, we designed and fabricated a kind of biodegradable vascular stent. The dynamics of expanding, compressing and bending process for the single "sine", "60 degrees sine" and "U" type stent unites were analyzed with Finite Element Method (FEA) respectively, and furthermore, the expanding characters of polylactic acid (PLA) stent models with length of 4mm, 6mm, and 8mm were simulated. The "sine" type bracket had a better dynamic property and thus was more suitable for medical stent implantation in terms of mechanical properties. Then, the stent errors including the movement, the nozzle deposition and the shrinkage of the material were analyzed which provided experimental basis for the designing of the stent. The brachial artery stent implantation on pig experimental animals was carried out using the 3D printed PLA vascular stents. Results showed that the 3D printed vascular could be transported into the stenosis place and expand the vessel after pulling out of the balloon. The blood supply function was normal and the biodegradation could be observed after 30 days. This paper provided a novel method for clinical transformation of biodegradable vascular stents.

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“…Strategi ekspansi lain yang dapat digunakan adalah dengan memodelkan balon menggunakan material hyper -elastis. Strategi tersebut cukup baik untuk mengivestigasi ekspansi stent karena memperhitungkan kontak balon dengan stent (Esghi, N, M. H. Hojjati, M. Imani, A. M. Goudarzi, 2011).…”

Section: Pendahuluanunclassified