Applied Physics A

, Volume 112, Issue 4, pp 919–926 | Cite as

Accelerated in vitro durability testing of nonvascular Nitinol stents based on the electrical potential sensing method

  • Chan-Hee Park
  • Leonard D. TijingEmail author
  • Hem Raj Pant
  • Tae-Hyung Kim
  • Altangerel Amarjargal
  • Han Joo Kim
  • Cheol Sang KimEmail author


In this paper, we report an evaluation of the performance of a new stent durability tester based on the electrical potential sensing method through accelerated in vitro testing of six different nonvascular Nitinol stents simulating physiological conditions. The stents were subjected to a pulsatile loading of 33 Hz for a total of 62,726,400 cycles, at constant temperature and pressure of 35±0.5 °C and 120±4 mmHg, respectively. The electrical potential of each stent was measured in real-time and monitored for any changes in readings. After conducting test-to-fracture tests, the stents were visually checked, and by scanning electron microscopy. A sudden electrical potential drop in the readings suggests a fracture has occurred, and the only two instances of fracture in our present results were correctly determined by our present device, with the fractures confirmed visually after the test. The excellent performance of our new method shows good potential for a highly reliable and applicable in vitro durability testing for different kinds and sizes of metallic stents.


Simulated Body Fluid Durability Testing Stent Fracture Voice Coil Motor Nitinol Stents 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research was supported by a grant from the Ministry of Education, Science, and Technology through the Leaders in Industry-University Cooperation (LinC) Project (Project no. 2012-C-0043-010111) and also by a grant from the Business for Greening the Manufacturing Environment Technology Development Project funded by the Korean Small and Medium Business Administration (Project no. S2025435).


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Chan-Hee Park
    • 1
  • Leonard D. Tijing
    • 2
    • 3
    Email author
  • Hem Raj Pant
    • 1
    • 4
  • Tae-Hyung Kim
    • 2
  • Altangerel Amarjargal
    • 1
    • 5
  • Han Joo Kim
    • 2
  • Cheol Sang Kim
    • 1
    • 2
    Email author
  1. 1.Department of Bionanosystem Engineering, Graduate SchoolChonbuk National UniversityJeonjuKorea
  2. 2.Division of Mechanical Design EngineeringChonbuk National UniversityJeonjuKorea
  3. 3.Department of Mechanical Engineering, College of Engineering and DesignSilliman UniversityDumaguete CityPhilippines
  4. 4.Department of Engineering Science and Humanities, Institute of EngineeringTribhuvan UniversityKathmanduNepal
  5. 5.Power Engineering SchoolMongolian University of Science and TechnologyUlaanbaatarMongolia

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