Braiding structure stability and section treatment evaluations of braided coronary stents made of stainless steel and bio-absorbable polyvinyl alcohol via a braiding technique

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• 作者：Kwo-Chang Ueng (1)
  Shih-Peng Wen (2)
  Ching-Wen Lou (3)
  Jia-Horng Lin (2) (4) (5)
  
  1. Department of Internal Medicine ; School of Medicine ; Chung Shan Medical University (Hospital) ; Taichung ; Taiwan
  2. LFAM ; Department of Fiber and Composite Materials ; Feng Chia University ; Taichung City ; 40724 ; Taiwan ; R.O.C.
  3. Institute of Biomedical Engineering and Materials Science ; Central Taiwan University of Science and Technology ; Taichung ; 40601 ; Taiwan ; R.O.C.
  4. School of Chinese Medicine ; China Medical University ; Taichung ; 40402 ; Taiwan ; R.O.C.
  5. Department of Fashion Design ; Asia University ; Taichung ; 41354 ; Taiwan ; R.O.C.
  
• 关键词：Braiding ; Bond ; Polyvinyl alcohol (PVA) ; Stainless steel fiber ; Coronary stent
• 刊名：Fibers and Polymers
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：16
• 期：3
• 页码：675-684
• 全文大小：6,795 KB
• 参考文献：1. McMahan, C. A., McGill, H. C., Gidding, S. S., Malcom, G. T., Newman, W. P., Tracy, R. E., Strong, J. P. (2007) Atherosclerosis 190: pp. 370 CrossRef
  2. Brugaletta, S., Gogas, B. D., Garcia-Garcia, H. M., Farooq, V., Girasis, C., Heo, J. H., Geuns, R.J., Bruyne, B., Dudek, D., Koolen, J., Smits, P., Veldhof, S., Rapoza, R., Onuma, Y., Ormiston, J., Serruys, P. W. (2012) Circ. J. 76: pp. 1616 CrossRef
  3. Ormiston, J. A., Serruys, P. W. S. (2009) Circ.-Cardiovasc. Interv. 2: pp. 255 CrossRef
  4. Babapulle, M. N., Eisenberg, M. J. (2002) Circulation 106: pp. 2734 CrossRef
  5. Betriu, A., Masotti, M., Serra, A., Alonso, J., Fernandez-Aviles, F., Gimeno, F., Colman, T., Zueco, J., Delcan, J. L., Garcia, E., Calabuig, J. (1999) J. Am. Coll. Cardiol. 34: pp. 1498 CrossRef
  6. Kathuria, Y. P., Mater, J. (2005) Process. Technol. 170: pp. 545 CrossRef
  7. Garlotta, D., Polym, J. (2001) Environ. 9: pp. 63
  8. Zhao, H., Humbeeck, J., Sohier, J., Scheerder, I. D. (2002) J. Mater. Sci.-Mater. Med. 13: pp. 911 CrossRef
  9. Kim, J. H., Kang, T. J., Yu, W. R. (2008) J. Biomech. 41: pp. 3202 CrossRef
  10. Kim, J. H., Kang, T. J., Yu, W. R. (2010) J. Biomech. 43: pp. 632 CrossRef
  11. Ide, A., Sakane, M., Chen, G. P., Shimojo, H., Ushida, T., Tateishi, T., Wadano, Y., Miyanaga, Y. (2001) Mater. Sci. Eng. CMater. Biol. Appl. 17: pp. 95 CrossRef
  12. Laurent, C. P., Durville, D., Mainard, D., Ganghoffer, J. F., Rahouadj, R. (2012) J. Mech. Behav. Biomed. Mater. 12: pp. 184 CrossRef
  13. Lin, J. H., Lou, C. W., Chang, C. H., Chen, Y. S., Lin, G. T., Lee, C. H. (2007) J. Mater. Process. Technol. 192: pp. 97 CrossRef
  14. Gallino, E., Massey, S., Tatoulian, M., Mantovani, D. (2010) Surf. Coat. Technol. 205: pp. 2461 CrossRef
  15. Liu, C. L., Chu, P. K., Lin, G. Q., Qi, M. (2006) Surf. Coat. Technol. 201: pp. 2802 CrossRef
  16. Ren, Y. B., Wan, P., Liu, F., Zhang, B. C., Yang, K. (2011) J. Mater. Sci. Technol. 27: pp. 325 CrossRef
  17. Westedt, U., Wittmar, M., Hellwig, M., Hanefeld, P., Greiner, A., Schaper, A. K., Kissel, T. (2006) J. Control. Release 111: pp. 235 CrossRef
  18. Farhatnia, Y., Tan, A., Motiwala, A., Cousins, B. G., Seifalian, A. M. (2013) Biotechnol. Adv. 31: pp. 524 CrossRef
  19. Lou, C. W., Chen, W. C., Chen, Y. S., Wen, S. P., Chang, C. W., Lin, J. H. (2011) Adv. Mater. Res. 287鈥?90: pp. 2656 CrossRef
  20. Leung, C. K., Melenka, G. W., Nobes, D. S., Carey, J. P. (2013) Compos. Struct. 100: pp. 135 CrossRef
  21. Kapnisis, K. K., Halwani, D. O., Brott, B. C., Anderson, P. G., Lemons, J. E., Anayiotos, A. S. (2013) J. Mech. Behav. Biomed. Mater. 20: pp. 227 CrossRef
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  
• 出版者：The Korean Fiber Society
• ISSN：1875-0052

文摘

To simplify the manufacturing process of coronary stents, this study employs a braiding technique that uses metallic and polyvinyl alcohol (PVA) fibers to prepare the metallic and PVA coronary stents. 316L stainless steel (SS) fibers and PVA fibers are respectively made into single- and double-ply braids, during which the gear ratios of the take-up gear to the braid gear are changed to 50:50, 60:50, 70:50, 80:50, and 90:50. The braiding structure is then bonded and stabilized by using a PVA solution, after which stereomicroscope observation, scanning electron microscopic (SEM) observation, braiding angle analysis, and strut cover rate measurement are performed to test the SS and PVA coronary stents. The experimental results show that the braiding technique can prepare the SS and PVA braids with the required braiding structure. However, cutting causes the braiding structure of the SS braids to expand due to the properties of the SS fibers while the PVA braids are too soft to take the form of a hollow tube. Therefore, a PVA solution coating is applied to stabilize the structure in order to complete the preparation of the SS and PVA coronary stents. Braiding angle decreases when the tooth number on the take-up gear decreases; furthermore, the strut cover rate and fiber diameter and area have a positive correlation. This study successfully combines a braiding technique and PVA solution coating to create SS and PVA coronary stents that present a stable braiding structure after cutting.