Warianty tytułu
Języki publikacji
Abstrakty
Due to lack of effective methods for preventing the complications associated with stent implantation, the search for new solutions is conducted, including those based on the use of biodegradable polymers. Such materials could allow us to develop a temporary implant that would ensure flow in the vessel until its regeneration, while minimising the negative effects connected with long--erm implant–tissue interaction. In this study, models in the form of biodegradable stents of different materials and geometry were prepared. Due to the fact that one of the basic requirements imposed on vascular stents is the ability to resist radial loads caused by the surrounding tissue, the maximum radial forces causing destruction of prepared models were investigated. The results were compared with the values obtained for commercially used metallic implants. Models were also incubated in Eagle's medium enriched with albumin in order to assess potential adhesion capacity of proteins on their surface. Scanning electron microscope enabled monitoring of microstructural changes during incubation. The results obtained were used to evaluate the ability to obtain a functional, biodegradable vascular stent.
Czasopismo
Rocznik
Tom
Strony
21-28
Opis fizyczny
Bibliogr. 31 poz., rys., tab.
Twórcy
autor
autor
autor
autor
- Wrocław University of Technology, Division of Biomedical Engineering and Biomechanics, magdalena.bartkowiak@pwr.wroc.pl
Bibliografia
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- [18] TAMAI H., IGAKI K. et al., One year follow-up biodegradable self-expanding stent implantation in humans, Journal of the American College of Cardiology, 2001, 37.
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- [20] LAUTO A., OHEBSHALOM M., ESPOSITO M., MINGIN J., FELSEN D., GOLDSTEIN M., POPPAS D.P., Self-expandable chitosan stent: design and preparation, Biomaterials, 2001, 22, 1869–1874.
- [21] UNVERDORBEN M., SPIELBERGER A., SCHYWALSKY M., LABAHN D., HARTWIG S., SCHNEIDER M., LOOTZ D., BEHREND D., SCHMITZ K., DEGENHARDT R., SCHALDACH M., VALLBRACHT C., A polyhydroxybutyrate biodegradable stent: Preliminary experience in the rabbit, Cardiovasc. Intervent. Radiol., 2002, 25, 127–132.
- [22] VENKATRAMAN S., POHA T.L., VINALIAA T., MAKB K.H., BOEYA F., Collapse pressures of biodegradable stents, Biomaterials, 2003, 24, 2105–2111.
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- [26] BARTKOWIAK-JOWSA M., BĘDZIŃSKI R., CHŁOPEK J., FILIPIAK J., SZARANIEC B., Comparative analysis of the deformation characteristics of biodegradable polymers considered as a material for vascular stents, Polymers, 2011, 56(3), 50–57.
- [27] RIEU R., BARRAGAN P., MASSON C., FUSERI J., GARITEY V., SILVESTRI M., ROQUEBERT P., SAINSOUS J., Radial force of coronary stents: a comparative analysis, Catheter Cardiovasc. Interv., 1999, 46(3), 380–391.
- [28] SAITO Y., MINAMI K., KOBAYASHI M., NAKAO Y., OMIYA H., IMAMURA H., SAKAIDA N., OKAMURA A., New tubular bioabsorbable knitted airway stent: Biocompatibility and mechanical strength, Journal of Thoracic and Cardiovascular Surgery, 2002, 123(1), 161–167.
- [29] VALIMAAA T., LAAKSOVIRTA S., Degradation behaviour of self-reinforced 80L/20G PLGA devices in vitro, Biomaterials, 2004, 25(7/8), 1225–1232.
- [30] GENNARO G., MÉNARD C., MICHAUD S.E., RIVARD A., Agedependent impairment of reendothelialization after arterial injury role of vascular endothelial growth factor, Circulation, 2003, 107, 230.
- [31] HAKKARAINEN M., HÖGLUND A., ODELIUS K., ALBERTSSON A.C., Tuning the release rate of acidic degradation products through macromolecular design of caprolactone-based copolymers, J. Am. Chem. Soc., 2007, 19, 6308–6312.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BPBB-0006-0038