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Tytuł artykułu

Analysis of selected utility properties of biomaterials used in coronary stents

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: The study analysed influence of the selected functional properties of metallic biomaterials on selected functional properties of coronary stents used in invasive cardiology. Design/methodology/approach: Pitting corrosion resistance tests were performed by means of potentiodynamic method. Corrosion resistance tests were performed on the ground of registered anodic polarisation curves and Stern method. The research also comprised galvanic corrosion resistance tests with application of Evans method. Measurements were made with VoltaLab® PGP 201 system. Tests were performed in artificial blood plasma at the temperature T = 37.0±1°C and pH = 7.0±0.2. Measurements of fluoroscopic visibility with application of cardiovascular imaging system Integris 5000 by Philips were also performed. Findings: Application of Ta layer in composite stents made of Cr-Ni-Mo steel is an effective method used for improvement of their functional properties, and in particular of their fluoroscopic visibility, at the same time decreasing their corrosion resistance. It is of crucial meaning for increasing effectiveness and safety of low-invasive percutaneous transluminal coronary angioplasty. Practical implications: Improvement of fluoroscopic visibility of coronary stents is possible through application of materials with increased X-ray absorptivity for their production. Within this scope you can consider certain form of implant created as a whole from one biomaterial or mixture of two biomaterials (layer implants), on the assumption that one of them features greater X-ray absorptivity. Originality/value: Application of middle layer made of tantalum in composite stent does not influence initiation of galvanic corrosion process but it produces better fluoroscopic visibility that brings forth improved safety of coronary angioplasty.
Rocznik
Strony
7--13
Opis fizyczny
Bibliogr. 34 poz., rys., tab.
Twórcy
  • DRG MedTek, ul. Wita Stwosza 24, 02-661 Warszawa, Poland
autor
  • Faculty of Biomedical Engineering, Department of Biomaterials and Medical Engineering Devices, Silesian University of Technology, ul. Gen. de Gaulle’a 66, 41-800 Zabrze, Poland
autor
  • Faculty of Biomedical Engineering, Department of Biomaterials and Medical Engineering Devices, Silesian University of Technology, ul. Gen. de Gaulle’a 66, 41-800 Zabrze, Poland
autor
  • Faculty of Biomedical Engineering, Department of Biomaterials and Medical Engineering Devices, Silesian University of Technology, ul. Gen. de Gaulle’a 66, 41-800 Zabrze, Poland
Bibliografia
  • [1] M. Changizi, C. Chemiak, Modeling the large-scale geometry of human coronary artery, Canadian Journal of Physiology and Pharmacology 78 (2000) 603-611.
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  • [3] M. Dewey, F. Teige, D. Schnapauff, Noninvasive detection of coronary artery stenoses with multislice computed tomography or magnetic resonance imaging, Annals of Internal Medicine 45 (2006) 407-415.
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  • [7] P. De Feyter, P. De Jaegere, P. Serruys, Incidence predictors and management of acute coronary occlusion after coronary angioplasty, American Heart Journal 127 (1994) 643-651.
  • [8] A. Colombo, P. Hall, S. Nakamura, Intracoronary stending without anticoagulation accomplished with intravascular ultrasound guidance, Circulation 91 (1995) 1676-1688.
  • [9] J. Brophy, P. Belisle, L. Joseph, Evidence for use of coronary stents: a hierarchical bayesian meta-analysis, Annals of Internal Medicine 138 (2003) 777-786.
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  • [11] J. Koolen, M. De Vita, LEONARDO - a prospective, single-centre registry, Interventional Cardiology 4 (2007) 38-40.
  • [12] R. Hoffmann, G. Mintz, Coronary in stent restenosis - predictors, treatment and prevention, European Heart Journal 21 (2000) 1739-1749.
  • [13] P. De Feyter, The quest of the ideal stent, European Heart Journal 22 (2001) 1766-1768.
  • [14] O. Bertrand, R. Sipehia, R. Mongrain, J. Rodes, J. Tardif, Biocompatibility aspects of new stent technology, Journal of the American College of Cardiology 32 3 (1998) 562-571.
  • [15] M. Kutryk, P. Serruys, Current state of coronary stenting, Fourth Thoraxcenter Course on Coronary Stenting, Roterdam, 1997.
  • [16] U. Sigwart, Endoluminal stenting,W.B. Saunders Company Ltd., 1996.
  • [17] PN-EN ISO 25539-2/2009: Endovascular of implants, Part 2 - Coronary stents.
  • [18] D. Stoeckel, A. Pelton, T. Duerig, Self-expanding nitinol stents - material and design considerations, European Radiology, 2004.
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  • [21] U. Sigwart, J. Puel, Intraluminal stents to prevent occlusion and restenosis after transluminal angioplasty, The New England Journal of Medicine 316 (1987) 701-706.
  • [22] A. Witkowski, Implantation of stents into coronary vascular and by-pass system, New Medicine 4 (1997) 17-21.
  • [23] P. De Feyter, P. De Jaegere, P. Serruys, Incidence, predictors and management of acute coronary occlusion after coronary angioplasty, American Heart Journal 127 (1994) 643-651.
  • [24] P. Serruys, B. Strauss, K. Beatt, Angiographic follow-up after placement of a self-expanding coronary-artery stent, The New England Journal of Medicine 324 (1991) 13-17.
  • [25] A. Colombo, P. Hall, S. Nakamura, Intracoronary stending without anticoagulation accomplished with intravascular ultrasound guidance, Circulation 91 (1995) 1676-1688.
  • [26] J. Brophy, P. Belisle, L. Joseph, Evidence for use of coronary stents: a hierarchical bayesian meta-analysis, Annals of Internal Medicine 138 (2003) 777-786.
  • [27] Ch. Mc Kenna, A. Camrud, G. Sangiorgi, H. Kwon, W. Edwards, D. Holmes, Fibrin-film stenting in a porcine coronary injury model, Efficacy and safety compared with uncoated stents, Journal of the American College of Cardiology 31 (1998) 1434-1438.
  • [28] R. Bonan, K. Bhat, T. Lefevre, Coronary artery stenting after angioplasty with self-expanding parallel wire metallic stents, American Heart Journal 121 (1991) 1522- 1530.
  • [29] J. Zidar, J. Jackman, R. Gammon, Serial assessment of heparin coating on vascular responses to a new tantalum stent, Circulation 89 (1992) 1-185.
  • [30] P. Hardhammar, H. Van Beusekom, H. Emanuelsson, Reduction in thrombic events with heparin-coated Palmaz-Schatz stents in normal coronary arteries, Circulation 93 (1996) 423-430.
  • [31] P. Serruys, H. Emanuelsson, W. Van der Giessen, Heparin-coated Palmaz-Schatz stents in human coronary arteries, Circulation 93 (1996) 412-422.
  • [32] N. Chronos, K. Robinson, A. Kelly, Thrombogenicity of tantalum stents is decreased by surface heparin bonding. Circulation 92 (1995) I-490.
  • [33] De Scheerder, K. Wang, K. Wilczek, Experimental study of thrombogenicity and foreign body reaction induced by heparin-coated coronary stents, Circulation 95 (1997) 1549-1553.
  • [34] P. Serruys, B. Van Hout, H. Bonnier, V. Legrand, E. Garcia, C. Macaya, E. Sousa, W. Van der Giessen, Randomised comparison of implantation of heparin-coated stents with angioplasty in selected patients with coronary artery disease, The Lancet 352 (1998) 673-678.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-ad02c143-5d99-496b-8426-65b5fe0df8fa
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