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Medical & Biological Engineering & Computing

, Volume 56, Issue 7, pp 1149–1160 | Cite as

Development and preclinical trials of a wire-driven end effector device for frozen shoulder treatment

  • Chul Min Park
  • Seong-il Kwon
  • Hanpyo Hong
  • Sungchul Kang
  • In-Ho Jeon
  • Shinsuk Park
  • Keri KimEmail author
Original Article
  • 354 Downloads

Abstract

Several different flexible end effectors have been developed to solve the problem of approaching the lesion in a minimally invasive surgery. In this paper, we developed a wire-driven end effector device to treat frozen shoulder. Since the device is for capsular release surgery, it has a suitable bend radius for the surgery. It is a cylindrical cannula that can fit various surgical tools and can be sterilized after use. The end effector is made of an elastic material called PAI (polyamide-imide) with its outer diameter and total length being 4 and 19 mm. It is controlled by wires that are connected to a motor. Through quantitative evaluation, we confirmed that the end effector can bend up to 90° in an upward or downward direction. Through qualitative evaluation, we confirmed that the device can easier access all regions of the glenoid in a shoulder model than conventional electrocautery. An experiment on a cadaver followed, which allowed us to discuss the real life performance, operation, and areas of improvement of the device with surgeons. From the experiments, we confirmed that our target region, the IGHL (inferior glenohumeral ligament), is within the reach of our device. The surgeon also evaluated that the control of the device caused no inconvenience.

Keywords

Frozen shoulder Capsular release surgery End effector Minimally invasive surgery 

Notes

Acknowledgements

This research was supported by the KIST Institutional Program (2E26700).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving a human cadaver were in accordance with the ethical standards of the institution or practice at which the studies were conducted.

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Copyright information

© International Federation for Medical and Biological Engineering 2017

Authors and Affiliations

  • Chul Min Park
    • 1
    • 2
  • Seong-il Kwon
    • 2
    • 3
  • Hanpyo Hong
    • 4
  • Sungchul Kang
    • 2
  • In-Ho Jeon
    • 4
  • Shinsuk Park
    • 1
  • Keri Kim
    • 2
    • 3
    Email author
  1. 1.Department of Mechanical EngineeringKorea UniversitySeoulRepublic of Korea
  2. 2.Robotics and Media Research Institute, Korea Institute of Science and Technology (KIST)SeoulRepublic of Korea
  3. 3.Department of Biomedical EngineeringKorea University of Science and Technology (UST)DaejeonRepublic of Korea
  4. 4.Asan Medical CenterUlsan University School of MedicineSeoulRepublic of Korea

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