Plastic strains during stent deployment have a critical influence on the rate of corrosion in absorbable magnesium stents

被引：18
作者：
Galvin, Emmet [1 ]
Cummins, Christy [2 ]
Yoshihara, Shoichiro [3 ]
Mac Donald, Bryan J. [1 ]
Lally, Caitriona [4 ,5 ]
机构：
[1] Dublin City Univ, Sch Mech & Mfg Engn, Dublin 9, Ireland
[2] Vasorum Ltd, 2012 Orchard Ave,Citywest Campus, Dublin 24, Ireland
[3] Univ Yamanashi, Fac Engn, 4-3-11 Takeda, Kofu, Yamanashi, Japan
[4] Univ Dublin, Sch Engn, Dept Mech & Mfg Engn, Dublin 2, Ireland
[5] Univ Dublin, Trinity Ctr Bioengn, Trinity Biomed Sci Inst, Trinity Coll Dublin, Dublin 2, Ireland
来源：
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING | 2017年 / 55卷 / 08期
关键词：
Absorbable metallic stents; Biodegradable magnesium alloys; WE43; Biomaterials; Cyclic strain; RARE-EARTH; SURFACE MODIFICATION; CORONARY; ALLOY; BEHAVIOR; WE43; DEFORMATION; MULTICENTER; CRACKING; SCAFFOLD;
D O I：
10.1007/s11517-016-1584-8
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Magnesium stents are a promising candidate in the emerging field of absorbable metallic stents (AMSs). In this study, the mechanical and corrosion performance of dog-bone specimens and a specific stent design of a magnesium alloy, WE43, are assessed experimentally in terms of their corrosion behaviour and mechanical integrity. It is shown that plastic strains that are induced in the struts of the stent during stent deployment have a critical influence in directing subsequent corrosion behaviour within the material. In addition, the deployment and scaffolding characteristics of the magnesium stent are elucidated and contrasted with those of a commercial stainless steel stent. The magnesium stent is found to support higher levels of cyclic strain amplitude than the stainless steel stent, even prior to degradation, and this may play a role in reducing in-stent restenosis. This study provides new insights into the experimental performance of a current AMS design and material whilst demonstrating the critical influence of plastic strain on the corrosion performance and scaffolding ability of an AMS.
引用
收藏
页码：1261 / 1275
页数：15
相关论文
共 39 条
[1]   A new in vitro-in vivo correlation for bioabsorbable magnesium stents from mechanical behavior [J].
Bowen, Patrick K. ;
Drelich, Jaroslaw ;
Goldman, Jeremy .
MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2013, 33 (08) :5064-5070
[2]   Tensile testing as a novel method for quantitatively evaluating bioabsorbable material degradation [J].
Bowen, Patrick K. ;
Gelbaugh, Jesse A. ;
Mercier, Phillip J. ;
Goldman, Jeremy ;
Drelich, Jaroslaw .
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 2012, 100B (08) :2101-2113
[3]   A method to develop mock arteries suitable for cell seeding and in-vitro cell culture experiments [J].
Colombo, A. ;
Zahedmanesh, H. ;
Toner, D. M. ;
Cahill, P. A. ;
Lally, C. .
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, 2010, 3 (06) :470-477
[4]   Cyclic strain amplitude dictates the growth response of vascular smooth muscle cells in vitro: role in in-stent restenosis and inhibition with a sirolimus drug-eluting stent [J].
Colombo, Alberto ;
Guha, Shaunta ;
Mackle, Joseph N. ;
Cahill, Paul A. ;
Lally, Caitriona .
BIOMECHANICS AND MODELING IN MECHANOBIOLOGY, 2013, 12 (04) :671-683
[5]   A review of deformation and fatigue of metals at small size scales [J].
Connolley, T ;
McHugh, PE ;
Bruzzi, M .
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2005, 28 (12) :1119-1152
[6]   Susceptibility of rare-earth-magnesium alloys to micro-galvanic corrosion [J].
Coy, A. E. ;
Viejo, F. ;
Skeldon, P. ;
Thompson, G. E. .
CORROSION SCIENCE, 2010, 52 (12) :3896-3906
[7]  
Di Mario Carlo, 2004, J Interv Cardiol, V17, P391, DOI 10.1111/j.1540-8183.2004.04081.x
[8]   Quantification of vessel wall cyclic strain using cine phase contrast magnetic resonance imaging [J].
Draney, MT ;
Herfkens, RJ ;
Hughes, TJR ;
Pelc, NJ ;
Wedding, KL ;
Zarins, CK ;
Taylor, CA .
ANNALS OF BIOMEDICAL ENGINEERING, 2002, 30 (08) :1033-1045
[9]   Temporary scaffolding of coronary arteries with bioabsorbable magnesium stents:: a prospective, non-randomised multicentre trial [J].
Erbel, Raimund ;
Di Mario, Carlo ;
Bartunek, Jozef ;
Bonnier, Johann ;
de Bruyne, Bernard ;
Eberli, Franz R. ;
Erne, Paul ;
Haude, Michael ;
Heublein, Bernd ;
Horrigan, Mark ;
Ilsley, Charles ;
Boese, Dirk ;
Koolen, Jacques ;
Luescher, Thomas F. ;
Weissman, Neil ;
Waksman, Ron .
LANCET, 2007, 369 (9576) :1869-1875
[10]   Surface Modification of Absorbable Magnesium Stents by Reactive Ion Etching [J].
Galvin, E. ;
Morshed, M. M. ;
Cummins, C. ;
Daniels, S. ;
Lally, C. ;
MacDonald, B. .
PLASMA CHEMISTRY AND PLASMA PROCESSING, 2013, 33 (06) :1137-1152
1234