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Crosslinked Polyurethane Coating on Vascular Stents for Enhanced X-ray ContrastInstitute of Polymer Research Dresden, Hohe Strasse 6, Dresden 01069, Germany, kond{at}mailcity.com
Natural Scientific Institute, Perm State University, Perm 614600, Russia
Natural Scientific Institute, Perm State University, Perm 614600, Russia
Institute of Continuous Media Mechanics, Perm 614013, Russia
APT GmbH, Dresden 01314, Germany
Institute of Ion Beam Physics and Materials Research, FZR, Dresden 01314, Germany A coating of polyurethaneurea was made from a solution on the surface of metal stents. The influence of cleaning, etching, chemical and ion beam modification (plasma immersion ion implantation) of the metal surface on the adhesion strength of the polyurethaneurea was analysed. Polyurethaneurea films imbedded with tantalum particles as a radiopaque filler maintained their strength and elasticity and produced clear X-ray contrast images of vascular stents.
Key Words: stents polyurethane polyurethaneurea coatings tantalum X-ray ion beam
Journal of Bioactive and Compatible Polymers, Vol. 20, No. 1,
77-93 (2005) |
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