Ankle Joint Stretching Device Using Tension Rod for Self Rehabilitation
Hideki Toda and Shin Sugihara
Department of Electric and Electronic Systems Engineering, Faculty of Engineering, University of Toyama
3190 Gofuku, Toyama, Toyama 930-8555, Japan
This paper proposed an ankle joint stretching device that is intended for self-rehabilitation by using a tension rod structure. Physical therapists treat their patients to prevent a subject ankle joint’s contracture and improve walking function. Still a sufficient rehabilitation therapy cannot be done due to demand for a labor-task of the ankle joint rehabilitation. There is a demand for the self-rehabilitation system long time to reduce the labor task, and especially it can be installed easily in a chair or bed in a patient home. By using a pantograph jack and spring casters, the developed device does not depend on installation location. It does not need a transfer assist process to the rehabilitation machine, which causes back pain of caregivers, and it allows for a self-rehabilitation of an ankle joint stretching. The experiment confirmed that the positional relationship was stabilized between the rotation axis of the device and the ankle joint position within (σx,σy)=(2.4, 2.5) mm during ankle dorsiflexion stretching in a fixed state of the device, which was realized by the pantograph jack and spring casters. Our proposed system that does not need transfer assistance before/after treatment will lead to self-rehabilitation for the ankle joint.
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