Jin-Yih Kao1, Sheng-Yao Lin1, Yih-Sharng Chen2
1Department of Mechanical Engineering, Lunghwa University of Science and Technology, Taoyuan, Taiwan 333, R.O.C.
2Department of Cardiovascular Surgery, National Taiwan University Hospital, Taipei, Taiwan 100, R.O.C.
Received: October 25, 2017
Accepted: February 7, 2018
Publication Date: August 16, 2018
Plane developed view of designed stent.
Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
Download Citation: BibTeX | http://dx.doi.org/10.6180/jase.201809_21(3).0005
The process of surface finishing is crucial to the performance of stents. This study explored the surface finishing of 316LVM stainless steel stents produced by laser cutting. Our results from measuring the quantity of material removed through these cleaning processes demonstrate that the slag formed on the surface of stents can be removed by means of acid pickling and electrolytic polishing. The stent surface process of stent after achieved a 78% improvement in surface roughness with an acceptable weight loss of 16.7% and a width reduction of 5.95%. In addition, the cleaning processes, as applied in the present study, resulted in the removal of appropriate quantities of stent material, resulting in devices with a superior finish as well as mechanical integrity. It is hoped that these results can contribute to the integrity and accuracy of associated studies in the future, including research preceding clinical animal testing and human trials and protection of patients during implantation procedures.
Keywords: Stent, Surface Finishing, Acid Pickling, Electrolytic Polishing
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