On The Quality and Performance Issues at Laser Manufacturing of Medical Implants

Автор(и)

  • Oleksandr Stepura Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського», Україна
  • Mykola Anyakin National Technical University of Ukraine "Ihor Sikorsky KPI", Україна
  • Ruslan Zhuk National Technical University of Ukraine "Ihor Sikorsky KPI", Україна
  • Qunli Zhang

DOI:

https://doi.org/10.20535/2409-7160.2019.XX.175597

Ключові слова:

Laser milling, laser micromachining

Анотація

The present work is dedicated to the design and manufacturing of stents by means of Laser Milling. The key issue is the improvement of the usability of stents with the following approaches: to increase width and to decrease thickness of stent walls in order to lower the pressure on the walls of blood vessels; - to deposit metal coatings on stent walls to increase corrosion resistance of stents and to increase the area of “useful” surface of stents by forming extra grooves (“pockets”) that could be used for drugs application on stent walls making stent active surface in terms of drug delivery. Technological processes of stent manufacturing were verified experimentally. We used medical needle (wall thickness – 200 microns, inner diameter – 0,8 mm). As a result, 2 mm long stents with wall thickness ranging from 80 microns to 200 microns were manufactured. These stents were implanted into the body of laboratory rat and were inflated to ensure normal blood flow. Inner protection screen was used (copper rod that was placed inside the tube workpiece and noticed that there was a transfer of screen material (Ti and Cu) on the inner walls of stent.

Посилання

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  3. Schuessler, A., Strobel, M., Steegmueller, R., & Piper, M. (2003, September). Stent materials and manufacturing: requirements and possibilities/opportunities. In Proceedings of the ASM Materials & Processes for Medical Devices Conference (pp. 8-10).
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  5. Vasco, J & Bartolo, P.J.. (2007). Processing conditions of laser micro-milling. Proceedings of the 15th International Symposium on Electromachining. 427-432.
  6. Kovalenko, V., Anyakin, M., Zhuk, R., Kondrashev, P., Stepura, O., & Meijer, J. (2010). Some results of studying laser micromachining at medical stents manufacturing. International journal of nanomanufacturing, 6(1/2/3/4), 253-263.

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Опубліковано

2019-09-10

Як цитувати

Stepura, O., Anyakin, M., Zhuk, R., & Zhang, Q. (2019). On The Quality and Performance Issues at Laser Manufacturing of Medical Implants. Матеріали науково-технічної конференції "Прогресивна техніка, технологія та інженерна освіта", (XX). https://doi.org/10.20535/2409-7160.2019.XX.175597

Номер

Розділ

ПРОГРЕСИВНА ТЕХНІКА І ТЕХНОЛОГІЯ МАШИНОБУДУВАННЯ