Shape Memory Ankle-Foot Orthoses

Jianming Chen; Jinlian Hu; Aaron K.L. Leung; Cheng Chen; Jun Zhang; Yuanchi Zhang; Yong Zhu; Jianping Han

doi:10.1021/acsami.8b08851

Shape Memory Ankle-Foot Orthoses

Jianming Chen, Jinlian Hu, Aaron K.L. Leung, Cheng Chen, Jun Zhang, Yuanchi Zhang, Yong Zhu, Jianping Han

Research output: Journal article publication › Journal article › Academic research › peer-review

21 Citations (Scopus)

Abstract

Electrically actuated ankle-foot orthoses (AFOs) were designed and prototyped using shape memory textile composites. Acrylic copolymers were synthesized as the matrix to demonstrate shape memory effects, whereas electrothermal fabrics were embedded to generate uniform heat as a trigger. Superior to conventional polymeric orthoses, shape memory AFOs (SM-AFOs) could be repeatedly programmed at least 20 times with stable shape fixity and recovery. Evidenced by clinical practice, SM-AFOs were effectively actuated at 10 V, allowing the correction of ankle angles with 10° plantarflexion. Ultimately, we envision a smart orthopedic system that can advance progressive rehabilitation with manipulation under safe and convenient conditions.

Original language	English
Pages (from-to)	32935-32941
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	39
DOIs	https://doi.org/10.1021/acsami.8b08851
Publication status	Published - 3 Oct 2018

Keywords

acrylic copolymers
ankle-foot orthoses
drop foot
electrothermal fabrics
shape memory

ASJC Scopus subject areas

General Materials Science

More information

10.1021/acsami.8b08851

Cite this

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title = "Shape Memory Ankle-Foot Orthoses",

abstract = "Electrically actuated ankle-foot orthoses (AFOs) were designed and prototyped using shape memory textile composites. Acrylic copolymers were synthesized as the matrix to demonstrate shape memory effects, whereas electrothermal fabrics were embedded to generate uniform heat as a trigger. Superior to conventional polymeric orthoses, shape memory AFOs (SM-AFOs) could be repeatedly programmed at least 20 times with stable shape fixity and recovery. Evidenced by clinical practice, SM-AFOs were effectively actuated at 10 V, allowing the correction of ankle angles with 10° plantarflexion. Ultimately, we envision a smart orthopedic system that can advance progressive rehabilitation with manipulation under safe and convenient conditions.",

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AU - Chen, Jianming

AU - Hu, Jinlian

AU - Leung, Aaron K.L.

AU - Chen, Cheng

AU - Zhang, Jun

AU - Zhang, Yuanchi

AU - Zhu, Yong

AU - Han, Jianping

PY - 2018/10/3

Y1 - 2018/10/3

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AB - Electrically actuated ankle-foot orthoses (AFOs) were designed and prototyped using shape memory textile composites. Acrylic copolymers were synthesized as the matrix to demonstrate shape memory effects, whereas electrothermal fabrics were embedded to generate uniform heat as a trigger. Superior to conventional polymeric orthoses, shape memory AFOs (SM-AFOs) could be repeatedly programmed at least 20 times with stable shape fixity and recovery. Evidenced by clinical practice, SM-AFOs were effectively actuated at 10 V, allowing the correction of ankle angles with 10° plantarflexion. Ultimately, we envision a smart orthopedic system that can advance progressive rehabilitation with manipulation under safe and convenient conditions.

KW - acrylic copolymers

KW - ankle-foot orthoses

KW - drop foot

KW - electrothermal fabrics

KW - shape memory

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Shape Memory Ankle-Foot Orthoses

Abstract

Keywords

ASJC Scopus subject areas

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