Bioabsorbable Stents : Reaching Clinical Reality
نویسندگان
چکیده
منابع مشابه
Bioabsorbable coronary stents.
Placing a coronary stent during angioplasty minimizes reduces of acute vessel occlusion [1] and restenosis [2]. Although permanent metallic stents are effective in preventing recoil and late restenosis after coronary angioplasty, they continue to have limitations such as stent thrombosis and mismatch of the stent to the vessel size. In-stent restenosis is the major shortcoming of conventional (...
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In this study a numerical model is developed to predict the effects of corrosion on the mechanical integrity of bioabsorbable metallic stents. To calibrate the model, the effects of corrosion on the integrity of biodegradable metallic foils are assessed experimentally. In addition, the effects of mechanical loading on the corrosion behaviour of the foil samples are determined. A phenomenologica...
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This study established a numerical model to investigate the degradation mechanism and behavior of bioabsorbable cardiovascular stents. In order to generate the constitutive degradation material model, the degradation characteristics were characterized with user-defined field variables. The radial strength bench test and analysis were used to verify the material model. In order to validate the n...
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Percutaneous coronary intervention (PCI) with bioabsorbable stents has created interest because the need for mechanical support for the healing artery is temporary, and beyond the first few months there are potential disadvantages of a permanent metallic prosthesis. Stents improve immediate outcomes, including profoundly reducing acute vessel occlusion after PCI by scaffolding intimal tissue fl...
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TThe introduction of drug-eluting stents has unquestionably been one of the most important advances in interventional cardiology during the past decade. The impact has already been profound, despite the release of the first drug-eluting stent, the Cypher stent (Cordis Corp), in the United States earlier this year. Practitioners are now using these devices for a wide variety of clinical and anat...
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ژورنال
عنوان ژورنال: Cardiovascular Journal
سال: 2014
ISSN: 2309-6357,2071-0917
DOI: 10.3329/cardio.v6i2.18346