Topic > The materials in a stent - 1090

There are many cases of death from heart disease, heart attack and other heart problems. To find a possible cure or help, scientists invented stents. Stents are spring-loaded objects that expand outward to open up a clotted area. Even though stents were invented and helped heal a vessel, there were still problems. It was therefore realized that more research would need to be devoted to the development of stents. This article addresses one of these research topics. Jared May, Milesh Joshi, and Rajeev Nair (2012) agree that “stent material is also an important factor in determining the clinical success of a stent” (p.442). So a good topic would be a topic about materials. What materials are best for a stent? To find the best material for a stent it is first important to identify the types of materials. Furthermore, it is important to understand the properties that a material should have. First of all it is important to divide the type of materials. There are two main types of material. There are biodegradable stents and there are stents that remain in the human body (Moravej & Mantovani, 2011). There are also many things to take into consideration when choosing the right material. For example, the material should be resistant to corrosion because a stent that corrodes can harm the human and not function properly. Additionally, Levesque, Dube, Fiset, and Mantovani (2004) state, “Coronary stents must have excellent mechanical properties to provide strength to artery walls” (p. 45). This ability to have strength prevents restenosis. Malleability also influences stent design (Joshi, & Nair, 2012). The materials must also have a good expansion ratio. They should be extremely flexible and should be able to facilitate drug… middle of paper… from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1770873/Jin , D. (2004 ). Materials and properties of coronary stents. Advanced Materials and Processes (pp. 45-48). Quebec City: Laval University.May, J., Joshi, N.N., & Nair, R. (2012). Application of design simulation and experimental design methodologies to the study of coronary stent designs. Computer-Aided Design and Applications, 9(4), 439-455. doi:10.3722/cadaps.2012.439-455Moravej, M., & Mantovani, D. (2011). Biodegradable metals for the application of cardiovascular stents: interests and new opportunities. International Journal Of Molecular Sciences, 12(7), 4250. doi:10.3390/ijms12074250Stoeckel, Pelton, Derig (2011) . Self-expanding nitinol stents: materials and design considerations (Fremont, California 94539). Retrieved November 17, 2013, from http://www.nitinol.com/media/reference-library/005.pdf