Magnetic Polishing of Titanium-Nickel Alloy Stents: Surface Characterization and Catheter Deployment Test

Publisher:
Springer US
Publication Type:
Journal Article
Citation:
Metallurgical and Materials Transactions A, 2012, 43 (9), pp. 3006 - 3010
Issue Date:
2012
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We report here for the first time the use of magnetic polishing to improve the surface finish of titanium-nickel (TiNi) stents for better performance. We investigated the effects of polishing time and rotational speed on the average surface roughness, surface chemical contents, and push-out load of stents. The magnetically polished stents show a decrease of 2.3 to 17.9 pct in surface roughness and a lower push-out load for stent deployment from the catheter.
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