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A Study on the Force and Center of Gravity of the Transfer-Lift for the Human Stability of Spine Patients

Sunwoo Yuk, BeomKi Hong, JumSik Song, InHo Hwang, GookChan Cha, and SukMin Lee
Korea Orthopedics and Rehabilitation Engineering Center, 26 Gyeongin-ro 10beon-gil, Bupyeong-gu, Incheon 21417, Korea

Abstract—People are demanding quality health care as their living standards are improved and the elderly population is increasing. In addition, many people with disabilities and older people want to use good rehabilitation aids. In this study, we developed "patient lift" for human stability. The developed lift has been studied focusing on the user's "power and gravity center" and the result is designed to lead to the stability of the lift. Therefore, all designs have been designed to optimize the driving torque and lift height according to the patient's weight for patient safety. In addition, static stability analysis for the developed lift was conducted. The analysis program was ANSYS, ABACUS. The analytical conditions for the lift are based on the test evaluation method according to ISO 10535. The final designed lift was tested through an internationally accredited laboratory to determine whether the test was appropriate for static safety modeling. 

Index Terms—patient lift, human stability, gravity center, ANSYS, ABACUS, ISO 10535

Cite: Sunwoo Yuk, BeomKi Hong, JumSik Song, InHo Hwang, GookChan Cha, and SukMin Lee, "A Study on the Force and Center of Gravity of the Transfer-Lift for the Human Stability of Spine Patients" International Journal of Mechanical Engineering and Robotics Research, Vol. 9, No. 4, pp. 612-617, April 2020. DOI: 10.18178/ijmerr.9.4.612-617

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.