Portable Pneumatic Actuator System Using MH Alloys, Employed as Assistive Devices
Mitsuru Sato*, Shuichi Ino**, Naoki Yoshida***, Takashi Izumi****,
and Tohru Ifukube**
*Department of Physical Therapy, School of Nursing and Rehabilitation Sciences, Showa University, Yokohama, Kanagawa, Japan
**Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
***Institute of Rehabilitation Science, Tokuyukai Medical Corporation, Toyonaka, Osaka, Japan
****Department of Electronic and Information Technology, School of Engineering, Hokkaido Tokai University, Sapporo, Hokkaido, Japan
Metal hydride (MH) actuators that use reversible reaction between heat and mechanical energy are suitable as a power source for rehabilitation or assistive devices. To avoid the risk of a hydrogen drive and obtain broader use than conventional MH actuators, we developed an MH air compressor that converts the hydrogen pressure of the MH actuator to air pressure. Although this compressor requires time to restore consumed air, it has the advantages of small size and flexible shape. Sit-to-stand motion aid for a wheelchair user that is the size of a seat cushion was developed using the MH air compressor.
and Tohru Ifukube, “Portable Pneumatic Actuator System Using MH Alloys, Employed as Assistive Devices,” J. Robot. Mechatron., Vol.19, No.6, pp. 612-618, 2007.
-  T. Sasaki, T. Kawashima, H. Aoyama, T. Ifukube, and T. Ogawa, “Development of an Actuator by using Metal Hydride,” J. Robotics Society of Japan, 4(2), pp. 45-48, 1986.
-  S. Ino, T. Izumi, M. Takahashi, and T. Ifukube, “Design of an actuator for tele-existence display of position and force to human hand and elbow,” Journal of Robotics and Mechatronics, Vol.4, No.1, pp. 43-48, 1992.
-  S. Ino, H. Hosoe, T. Izumi, M. Takahashi, T. Ifukube, and M. Muro, “Design of a small-sized actuator using a metal hydride for the aid of the upper limb disabled,” in Proc. 31st Conf. Japan Soc. Med. Elec. Biologic. Eng., 30, p. 297, 1992.
-  S. Shimizu, S. Ino, M. Sato, T. Odagawa, T. Izumi, M. Takahashi, and T. Ifukube, “A basic study of a force display using metal hydride actuator,” in Proc. IEEE Int. Workshop on Robot and Human Commun. RO-MAN’93, Tokyo, Japan, pp. 211-214, 1993.
-  S. Shimizu, S. Ino, T. Izumi, M. Takahashi, and T. Ifukube, “Development of actuator using metal hydride for force display to elbow joint,” Journal of Robotics and Mechatronics, Vol.5, No.3, pp. 220-225, 1993.
-  Y. Wakisaka, M. Muro, T. Kabutomori, H. Takeda, T. Izumi, S. Ino, and T. Ifukube, “Application of hydrogen absorbing alloys to medical and rehabilitation equipment,” IEEE Trans. Rehabil. Eng., 5(2), pp. 148-157, 1997.
-  T. Tsuruga, S. Ino, T. Ifukube, M. Sato, T. Tanaka, T. Izumi, and M. Muro, “A basic study for a robotic transfer aid system based on human motion analysis,” Adv. Robot., 14(7), pp. 579-595, 2000.
-  M. W. Rodosky, T. P. Andriacchi, and G. B. Andersson, “The influence of chair height on lower limb mechanics during rising,” J. Orthop. Res., 7(2), pp. 266-271, 1989.
-  M. A. Hughes, D. K. Weiner, M. L. Schenkman, R. M. Long, and S. A. Studenski, “Chair rise strategy in the functionally impaired elderly,” Clin. Biomech., 9(3), pp. 187-192, 1994.
-  M. Schenkman, P. O. Riley, and C. Pieper, “Sit to stand progressively lower seat heights – alterations in angular velocity,” Clin. Biomech., 11(3), pp. 153-158, 1996.
-  M. A. Hughes, B. S. Myers, and M. L. Schenkman, “The role of strength in rising from a chair in the functionally impaired elderly,” J. Biomech., 29(12), pp. 1509-1513, 1996.
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