Abstract
In Japan, it is popular that the disease knee joints will be replaced to artificial joints by surgery. And we have to assist so many patients for walk rehabilitation. So, the wearable assist robot has been developed. This robot includes the knee motion assist mechanism and the hip joint support mechanism. Especially, the knee motion assist mechanism consists of a non-circular gear and grooved cams. This mechanism rotates and slides simultaneously, which has two degree-of-freedom. Also, the hip joint support mechanism consists of a hip brace and a ball-joint. This mechanism can avoid motion constraints which are the internal or external rotation and the adduction or abduction. Then, the control algorithm, which considers an assisting timing for the walk rehabilitation, has been proposed. A sensing system of a walk state for this control system uses a heel contacts sensor and knee and hip joint rotation angle sensors. Also, the prototype robot has been tested. And it is confirmed that the assisting system is useful.
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References
Salter, R.B.: The biological effects of continuous passive motion on the healing of full-thickness defects in articular cartilage: an experimental investigation in the rabbit, J Bone Joint Surgery. 62A, 1232 (1980)
Milne S., et al.: Continuous passive motion following total knee arthroplasty, Cochrane. Database Syst Rev. 2, CD004260 (2003)
The Japanese Orthopaedic Association: Check Point of the Prosthetist and Orthotist, Igaku-shoin, 262 (1978)
Terada H., et al.: Developments of a knee motion assist mechanism for wearable robot with a non-circular gear and grooved cams, Mechanisms. Transmissions and applications: mechanism and machine science, 3, p. 69 Springer, (2012)
Katori H., et al.: A simplified synthetic design method of pitch curves based on motion specifications for noncircular gears. Trans Jpn Soc Mech Engi-neers. Part C. 60(570), 668 (1994)
Makino H.: Automatic assembly machine kinematics, Nikkan Kogyo Shimbun Ltd, p. 29 (1976)
Sato K.: Practical kinematics for co-medical, Medical-friend Co, p. 16 (1993)
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© 2012 Springer Science+Business Media Dordrecht
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Terada, H., Zhu, Y., Horiguchi, K., Nakamura, M., Takahashi, R. (2012). Development of a Wearable Assist Robot for Walk Rehabilitation After Knee Arthroplasty Surgery. In: Beran, J., BÃlek, M., Hejnova, M., Zabka, P. (eds) Advances in Mechanisms Design. Mechanisms and Machine Science, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-5125-5_9
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DOI: https://doi.org/10.1007/978-94-007-5125-5_9
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