The Journal of Korea Robotics Society (로봇학회논문지)

Korea Robotics Society (한국로봇학회)
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Improved Wearability of the Upper Limb Rehabilitation Robot NREX with respect to Shoulder Motion

어깨의 움직임을 중심으로 한 상지재활로봇 NREX의 착용감 개선

  • Song, Jun-Yong (Department of Rehabilitative & Assistive Technology, National Rehabilitation Center) ;
  • Lee, Seong-Hoon (Department of Rehabilitative & Assistive Technology, National Rehabilitation Center) ;
  • Song, Won-Kyung (Department of Rehabilitative & Assistive Technology, National Rehabilitation Center)
  • Received : 2019.07.20
  • Accepted : 2019.10.27
  • Published : 2019.11.30
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Abstract

NREX, an upper limb exoskeleton robot, was developed at the National Rehabilitation Center to assist in the upper limb movements of subjects with weak muscular strength and control ability of the upper limbs, such as those with hemiplegia. For the free movement of the shoulder of the existing NREX, three passive joints were added, which improved its wearability. For the flexion/extension movement and internal/external rotation movement of the shoulder of the robot, the ball lock pin is used to fix or rotate the passive joint. The force and torque between a human and a robot were measured and analyzed in a reaching movement for four targets using a six-axis force/torque sensor for 20 able-bodied subjects. The addition of two passive joints to allow the user to rotate the shoulder can confirm that the average force of the upper limb must be 31.6% less and the torque must be 48.9% less to perform the movement related to the axis of rotation.

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References

  1. Health Insurance Review & Assessment Service, 100 Disease Statistics in Living, [Online], http://www.hira.or.kr/ebooksc/ebook_472/ebook_472_201803281057049800.pdf, Accessed: May 20, 2019.
  2. Healtip, Rehabilitation Exercise of Stroke Patients, [Online], http://www.healtip.co.kr/news/articleView.html?idxno=132, Accessed: May 20, 2019.
  3. J. H. Carr and R. B. Shepherd, Stroke rehabilitation: Guidelines for exercise and training to optimize motor skill, 1st ed. Oxford, Butterworth-Heinneman, 2003.
  4. W.-K. Song, W.-J. Song, and J.-Y. Jung, "NREX: NRC Robotic Exoskeleton," 2013 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), Jeju, South Korea, pp. 454-456, 2013.
  5. M. H. Chun and J. H. Yi, "Robotics in rehabilitation for patients with brain disease," Journal of the Korean Medical Association, vol. 56, no. 1, pp. 23-29, Jan., 2013. https://doi.org/10.5124/jkma.2013.56.1.23
  6. R. A. R. C. Gopura, K. Kiguchi, and D. S. V. Bandara, "A brief review on upper extremity robotic exoskeleton systems, " 2011 6th International Conference on Industrial and Information Systems, Kandy, Sri Lanka, 2011.
  7. F. Gemperle, C. Kasabach, J. Stivoric, M. Bauer, and R. Martin, "Design for wearability," Second International Symposium on Wearable Computers (Cat. No.98EX215), Pittsburgh, PA, USA, 1998.
  8. C. Sicuri, G. Porcellini, and G. Merolla, "Robotics in shoulder rehabilitation," Muscles Ligaments and Tendons Journal, vol. 4, no. 2, pp. 207-213, 2014.
  9. D. Koo, P. H. Chang, M. K. Sohn, and J.-H. Shin, "Shoulder Mechanism Design of an Exoskeleton Robot for Stroke Patient Rehabilitation," 2011 IEEE International Conference on Rehabilitation Robotics, Zurich, Switzerland, 2011.
  10. I. Galiana, F. L. Hammond, R. D. Howe, and M. B. Popovic, "Wearable Soft Robotic Device for Post-Stroke Shoulder Rehabilitation: Identifying Misalignments," 2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, Vilamoura, Portugal, 2012.
  11. W.-K. Song and J.-Y. Song, "Improvement of upper extremity rehabilitation Robotic Exoskeleton, NREX," 2017 14th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), Jeju, South Korea, 2017.
  12. R. A. R. C. Gopura and K. Kiguchi, "Mechanical designs of active upper-limb exoskeleton robots: State-of-the-art and design difficulties," 2009 IEEE International Conference on Rehabilitation Robotics, Kyoto, Japan, 2009.
  13. K. Kiguchi, M. H. Rahman, M. Sasaki, and K. Teramoto, "Development of a 3DOF mobile exoskeleton robot for human upper-limb motion assist," Robotics and Autonomous Systems, vol. 56, no. 8, pp. 678-691, Aug., 2008. https://doi.org/10.1016/j.robot.2007.11.007
  14. J. H. Choi S. Oh, and J. An, "Sensorless Force Control with Observer for Multi-functional Upper Limb Rehabilitation Robot," Journal of Korea Robotics Society, vol.12, no.3, pp.356-364, Sept., 2017. https://doi.org/10.7746/jkros.2017.12.3.356