The Development of Wrist Rehabilitation Assistive Devices Using a Shape Memory Alloy

Abstract:

For the purpose of wrist rehabilitation, a new type of SMA (Shape memory alloy) wrist rehabilitation device is developed. The palm will be actuated/lifted by the SMA’s driving force when the shape memory alloy is heated up. Four wires of the shape memory alloy (SMA-Ti50Ni45Cu5 with 1.0mm in ψ) are bundled and passed through a fixed plastic block. The whole set of the SMA wrist rehabilitation devices can give support to the palm’s bending mechanism. A 500(g) adult palm is presented in the experimental work. In order to actuate/lift the palm at a sufficient rehabilitation angle, an electrical circuit of 10(A) is adopted. Consequently, the issue, here, is to present a new type of SMA wrist splint that is used to provide a specified rehabilitation angle for the wrist.

• Periodical: Advanced Materials Research (Volume 740)
• Pages: 408-415
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.740.408
• Online since: August 2013
• Authors: Min Chie Chiu, Long Jyi Yeh, Tz Chi Hung
• Keywords: Rehabilitation, SMA, Wrist

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