Development of Polymer Coatings for Coronary Stents

Dániel Domján; Lászlo Milán Molnár; Eszter Bognár; Tibor Balázs

doi:10.4028/www.scientific.net/MSF.659.141

Paper Titles

Investigation of Noble Metal Nanoparticles (Ag, Au, Pd, Pt) Produced by Chemical Reduction
p.115

Development of Multifunctional Silicon Nitride Based Nanocomposites
p.121

Aptitude for Cold Rolling of Laser Welded Joints and their Environment in the Case of Steel Sheets
p.127

Flame Retardant Polyethylene Terephthalate Fibers Added with Melamine Based FR Additive
p.135

Development of Polymer Coatings for Coronary Stents
p.141

MEMS-Compatible Hard Coating Technique of Moveable 3D Silicon Microstructures
p.147

Evaluation of Cooling Characteristics of Quenchants by Using Inverse Heat Conduction Methods and Property Prediction
p.153

Processing of Nano Hydroxyapatite from Eggshell and Seashell
p.159

Hetero-Modulus Nanoparticles Reinforced Corundum Matrix CMC with Extreme Wear and Thermal Shock Resistances
p.165

HomeMaterials Science ForumMaterials Science Forum Vol. 659Development of Polymer Coatings for Coronary...

Development of Polymer Coatings for Coronary Stents

Abstract:

The aim of this study is to examine some key properties of medical polyurethane coatings on coronary stents such as thickness and size of pores on the surface of austenitic stainless steel (316L). Plates were used as carrier instead of real stents, because they are too expensive and difficult to work with. The carriers were dipped into the solution of polyurethane and tetrahydrofuran. Solutions of 1 to 5 wt % were prepared for the experiments and the numbers of the dipping were changed. The coatings were examined with Atomic Force Microscope (AFM). In contact mode detailed images with good contrast were made about the coatings. These images were processed with image processing algorithms in MATLAB and with the image analysis software belonging to the AFM instrument.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volume 659)

Pages:

141-146

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.659.141

Citation:

Cite this paper

Online since:

September 2010

Authors:

Dániel Domján, Lászlo Milán Molnár, Eszter Bognár, Tibor Balázs

Keywords:

Atomic Force Microscope (AFM), Coated Stent, Index Of Porosity, Polyurethane (PU)

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] European Cardiovascular Disease Statistics - British Heart Foundation and European Heart Network - (2005).

Google Scholar

[2] M. JB. Kutryk, P. W. Serruys: Handbook of Coronary Stents, 3th edition, Martin Dunitz Ltd. London (1999).

Google Scholar

[3] M. Veres, S. Tóth, M. Füle, J. Dobránszky, L. Major and M. Koós: Raman analysis of diamondlike carbon films deposited onto corrosion resistant alloys used for coronary stent fabrication, Materials Science Forum Vols. 537-538 (2007) pp.277-283.

DOI: 10.4028/www.scientific.net/msf.537-538.277

Google Scholar

[4] Gy. Meszlényi, J Dobránszky, Zs Puskás: Laser cutting of high precision tubes. Materials Science Forum 589: pp.427-431. (2008).

DOI: 10.4028/www.scientific.net/msf.589.427

Google Scholar

[5] Otsu, N.: A Threshold Selection Method from Gray-Level Histograms, IEEE Transactions on Systems, Man and Cybernetics, Vol. 9, No. 1 (1979) pp.62-66.

DOI: 10.1109/tsmc.1979.4310076

Google Scholar