TY - JOUR
T1 - Structural design and numerical analysis of a novel biodegradable zinc alloy stent
AU - Peng, Kun
AU - Qiao, Aike
AU - Ohta, Makoto
AU - Putra, Narendra Kurnia
AU - Cui, Xinyang
AU - Mu, Yongliang
AU - Anzai, Hitomi
N1 - Funding Information:
Acknowledgement: This study was supported by Major Project of Science and Technology of Beijing Municipal Education Commission and Type B Project of Beijing Natural Science Foundation (KZ201710005007). Part of the study was performed under the General Collaborative Research Project of the Institute of Fluid Science, Tohoku University (J17I105).
Funding Information:
This study was supported by Major Project of Science and Technology of Beijing Municipal Education Commission and Type B Project of Beijing Natural Science Foundation (KZ201710005007). Part of the study was performed under the General Collaborative Research Project of the Institute of Fluid Science, Tohoku University (J17I105).
Publisher Copyright:
© 2018 Tech Science Press.
PY - 2018
Y1 - 2018
N2 - Biodegradable zinc alloy stents are a prospective solution for complications caused by the incompatibility between artery and permanent stents. However, insufficient scaffolding has limited the clinical application of biodegradable zinc alloy stents. Therefore, in this study, a new stent concept was designed to improve the scaffolding. The mechanical performances of the new and a traditional design stent were investigated and compared using finite element analysis (FEA). The new and traditional design stent were expanded to the intended radial displacement of 0.24 mm under the expansion pressure of 0.58 MPa and 0.45 MPa, respectively. Then, a pressure load of 0.35 MPa was exerted on the outer surfaces of the two stents to compress them. The results showed that the radial recoiling ratio were 45.3% and 83.3% for the new and the traditional stent, respectively. The simulations demonstrate that the biodegradable zinc alloy stent offers enhanced support because of the new structural design. This study implies that biodegradable zinc alloy stent can be a new competitive intervention device for the future clinical cardiovascular application.
AB - Biodegradable zinc alloy stents are a prospective solution for complications caused by the incompatibility between artery and permanent stents. However, insufficient scaffolding has limited the clinical application of biodegradable zinc alloy stents. Therefore, in this study, a new stent concept was designed to improve the scaffolding. The mechanical performances of the new and a traditional design stent were investigated and compared using finite element analysis (FEA). The new and traditional design stent were expanded to the intended radial displacement of 0.24 mm under the expansion pressure of 0.58 MPa and 0.45 MPa, respectively. Then, a pressure load of 0.35 MPa was exerted on the outer surfaces of the two stents to compress them. The results showed that the radial recoiling ratio were 45.3% and 83.3% for the new and the traditional stent, respectively. The simulations demonstrate that the biodegradable zinc alloy stent offers enhanced support because of the new structural design. This study implies that biodegradable zinc alloy stent can be a new competitive intervention device for the future clinical cardiovascular application.
KW - Biodegradable stent
KW - Design
KW - Finite element analysis
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U2 - 10.31614/cmes.2018.04113
DO - 10.31614/cmes.2018.04113
M3 - Article
AN - SCOPUS:85055631072
SN - 1526-1492
VL - 117
SP - 17
EP - 28
JO - CMES - Computer Modeling in Engineering and Sciences
JF - CMES - Computer Modeling in Engineering and Sciences
IS - 1
ER -