Chandrakantha Bekal, Satish Shenoy, Ranjan Shetty

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This paper investigates the performance of two commercial stent designs inside the normal artery for induced Von Mises Stress and radial displacement pattern. Investigation focuses on identifying the key design feature of the stent structure responsible for varied stress and displacement pattern. Two commercial stent designs, Supraflex (Stent S) and Yukon Choice (Stent T),are modeled using micro CT images and MIMICS® while idealized models are used for investigation. ANSYS Workbench is used to numerically expand the stent inside an idealized normal artery with inflation pressure. The stent and the artery are modeled using elastic-plastic and hyperelastic material models, respectively. The results suggest crucial influence of the link positioning in inducing an area of higher Von Mises Stress and stress gradient. The locations of a higher stress gradient are those in line with unbound stent crowns. Also, higher and uniform arterial displacement can be observed in the locations in line with the bound crown. Results also suggested a considerable difference in arterial distortion induced by two designs, causes for which can also be attributed to the differences in the link placement. The study suggests that the link connections play a crucial role in setting up stress field/radial displacement. Suitable modification of the link positioning can reduce the higher stress gradient and arterial distortion, which probably can reduce arterial injury.


Coronary Stents, Finite Element Analysis, Arterial Stress, Artery Radial Displacement, Arterial Distortion

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Mathers, C.D., Boerma, T., Ma Fat, D., 2009, Global and regional causes of death, Br. Med. Bull., 92(1), pp. 7-32.

Mozaffarian, D., 2016, AHA Statistical Update Heart Disease and Stroke Statistics — 2016 Update A Report From the American Heart Association, Circulation, 133(4), pp. e38-e360.

Whittaker, D.R., Fillinger, M.F., 2006, The Engineering of Endovascular Stent Technology: A Review, Vasc. Endovascular Surg., 40(2), pp. 85-94.

Ramakrishnan, S., Mishra, S., Chakraborty, R., Sarat Chandra, K., Mardikar, H.M., 2013, The report on the Indian coronary intervention data for the year 2011 e National Interventional Council, Indian Heart J., 65(5), pp. 518-521.

Timmins, L.H., 2011, Increased artery wall stress post-stenting leads to greater intimal thickening, Lab. Investig., 91(6), pp. 955–67.

Zahedmanesh, H., Cahill, P.A., Lally, C., 2012, Vascular Stent Design Optimisation Using Numerical Modelling Techniques, Applied Biological Engineering – Principles and Practice, pp. 237–260.

Stoeckel, D., 2002, A Survey of Stent Designs, Min Invas Ther Allied Technol, 11(4), pp. 137–147.

Rogers, C., 1999, Balloon-Artery Interactions During Stent Placement:A Finite Element Analysis Approach to Pressure, Compliance, and Stent Design as Contributors to Vascular Injury, Circ. Res., 84, pp. 378–383.

Early, M., Kelly, D.J., 2010, The role of vessel geometry and material properties on the mechanics of stenting in the coronary and peripheral arteries, Proc. Inst. Mech. Eng. H., 224(3), pp. 465–476.

De Beule, M., 2008, Realistic finite element-based stent design: The impact of balloon folding, J. Biomech., 41(2), pp. 383-389.

Mitra, A.K., Agrawal, D.K., 2006, In stent restenosis: bane of the stent era, J Clin Pathol, 59, pp. 232–239.

Kornowski, R.A.N., Hong, M.U.N., Tio, K.F.O., Bramwell, O., Wu,H., Leon, M.B., 1998, In-Stent Restenosis : Contributions of Inflammatory Responses and Arterial Injury to Neointimal Hyperplasia, J. Am. Coll. Cardiol., 31(1), pp. 224-230.

Schwartz, R.S., Huber, K.C., Murphy, J.G., Edwards, W.D., Camrud, A.R., Vlietstra, R.E., Holmes, D.R., 1992, Restenosis and the Proportional Neointimal Response to Coronary Artery Injury : Results in a Porcine Model, J. Am. Coll. Cardiol., 19(2), pp. 267-274.

Azaouzi, M., Makradi, A., Belouettar, S., 2013, Numerical investigations of the structural behavior of a balloon expandable stent design using finite element method, Comput. Mater. Sci., 72, pp. 54-61.

Bukala, J., Kwiatkowski, P., Malachowski, J., 2016, Numerical analysis of stent expansion process in coronary artery stenosis with the use of non-compliant balloon, Biocybern. Biomed. Eng., 36(1), pp. 145-156.

David Chua, S.N., Mac Donald, B.J., Hashmi, M.S.J., 2003, Finite element simulation of stent and balloon interaction, J. Mater. Process. Technol., 143–144(1), pp. 591-597.

Bedoya, J., Meyer, C.A., Timmins, L.H., Moreno, M.R., Moore J.E., 2006, Effects of stent design parameters on normal artery wall mechanics., J. Biomech. Eng., 128(5), pp. 757-765.

Martin, D., Boyle, F., 2013, Finite Element Analysis of Balloon-Expandable Coronary Stent Deployment : Influence of Angioplasty Balloon Configuration, Int. J. Numer. Meth. Biomed. Engng., 29(11), pp. 1161-1175.

Raut, B.K., Patil,V.N., Cherian, G., 2017, Coronary artery dimensions in normal Indians, Indian Heart J., 69(4), pp. 512-514.

Migliavacca, F., Petrini, L., Colombo, M., Auricchio, F., Pietrabissa, R., 2002, Mechanical behavior of coronary stents investigated through the finite element method, J. Biomech., 35(6), pp. 803-811.

Migliavacca, F., Petrini, L., Montanari, V., Quagliana, I., Auricchio, F., Dubini, G., 2005, A predictive study of the mechanical behaviour of coronary stents by computer modelling, Med. Eng. Phys., 27(1), pp. 13-18.

Lally, C., Dolan, F., Prendergasr, P.J., 2005, Cardiovascular stent design and vessel stresses: A finite element analysis, J. Biomech., 38(8), pp. 1574-1581.

Pant, S., Bressloff, N.W., Limbert, G., 2012, Geometry parameterization and multidisciplinary constrained optimization of coronary stents, Biomech. Model. Mechanobiol., 11(1-2), pp. 61-82.

GU, L., Zhao, S., Froemming, S.R., 2012, Arterial Wall Mechanics and Clinical Implications After Coronary Stenting: Comparisons of Three Stent Designs, Int. J. Appl. Mech., 4(2), 1250013.

Schillinger, M., Gschwendtner, M., Reimers,B., Trenkler, J., Stockx, L., Mair, J., MacDonald, S., Karnel, F., Huber, K., Minar, E., 2008, Does carotid stent cell design matter?, Stroke, 39(3), pp. 905-909.

Buccheri, D., Piraino, D., Andolina, G., Cortese, B., 2016, Understanding and managing in-stent restenosis : a review of clinical data , from pathogenesis to treatment, J. Thorac. Dis., 8(3), pp. 1150-1162.


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