Drug Distribution and Stent Retention of Drug Eluting Stents

Bognár, Eszter and Ring, Gy. and Balázs, T. and Dobránszky, János (2008) Drug Distribution and Stent Retention of Drug Eluting Stents. In: Gépészet 2008: Proceedings of Sixth Conference on Mechanical Engineering. Budapesti Műszaki és Gazdaságtudományi Egyetem, Budapest. ISBN 978-963-420-947-8

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Abstract

In this paper the examinations of drug eluting coronary stents are shown, such as the morphology of the coatings before expansion, drug distribution, the methodology and the value of stent retention. Surface qualities of drug coatings were examined with stereo-microscope, metallographic microscope and scanning electron microscope. Examinations with confocal microscope show drug distribution in the coatings. Stent retention is a very important property of the stent system. Stent retention is a force, needed to the stent slip down from the balloon. Three drug eluting coronary stents were tested with our method.

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