Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Development of the High_frequency and Low_strain Vibration Stimulation System for Stimulating Bone

고주파 저스트레인 골자극 인가용 진동 시스템 개발

  • Yoo, Ju-Yeon (Department of Interdisciplinary program in Biomedical Engineering, School of Medicine, Pusan National University) ;
  • Park, Guen-Chul (Department of Interdisciplinary program in Biomedical Engineering, School of Medicine, Pusan National University) ;
  • Jeon, Ah-Young (Department of Interdisciplinary program in Biomedical Engineering, School of Medicine, Pusan National University) ;
  • Kim, Yun-Jin (Department of Family Medicine, College of Medicine, Pusan National University) ;
  • Ro, Jung-Hoon (Department of Biomedical Engineering, School of Medicine. Pusan National University) ;
  • Jeon, Gye-Rok (Department of Biomedical Engineering, School of Medicine. Pusan National University)
  • 유주연 (부산대학교 의학전문대학원 의공학협동과정) ;
  • 박근철 (부산대학교 의학전문대학원 의공학협동과정) ;
  • 전아영 (부산대학교 의학전문대학원 의공학협동과정) ;
  • 김윤진 (부산대학교 의학전문대학원 가정의학교실) ;
  • 노정훈 (부산대학교 의학전문대학원 의공학교실) ;
  • 전계록 (부산대학교 의학전문대학원 의공학교실)
  • Received : 2011.01.03
  • Accepted : 2011.03.14
  • Published : 2011.04.30
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Abstract

In this study, the system for application of the bone stimulation was implemented using high frequency and low strain method. The whole system consists of the high frequency and low strain vibration stimulation system 177 for stimulating bone, LVDT sensor, and wireless sensor based on tri-axial accelerometer. To evaluate the usefulness of the system, the frequencies and accelerations from function generator were applied to the vibration stimulation system. The range of frequency was 17 Hz, 30 Hz, 45 Hz, 50 Hz and the range of acceleration was set 0.3 g, 0.6 g, 1g, and 2 g. The measured frequencies and acceleration using LVDT (linear variable difference transformer) sensor and 3-axial accelerometer were estimated and compared. The range of frequencies average difference was from 0.0 to 0.004 Hz. As the standard deviation of frequencies estimated by LVDT sensor and accelerometer was below 0.03 Hz and the output frequencies of function generator were similar: Also the results of t-test were satisfied with conditions of p > 0.05. And the acquired frequencies and acceleration from vibration measuring device module were estimated and analyzed. As the mean of accelerations was similar to the acceleration applied from function generator. And the standard deviation of acceleration estimated from vibration measuring device module was ranged from 0.019 g to 0.038 g. Also the results of t-test were satisfied with conditions of p > 0.05. Therefore, these results were airy similar to the acceleration applied from function generator. As a result, the usefulness of the system was confirmed. n a further study, clinical experiment will be carried out with the authorization of IRB (institutional review board) so that appropriate frequency and strain would be investigated in clinical field.

Keywords

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