DESIGN AND ANALYSIS OF THERMOPLASTIC POLYPROPYLENE ANKLE FOOT ORTHOSIS
DOI:
https://doi.org/10.37255/jme.v16i3pp087-091Keywords:
Human Foot, AFO, Polypropylene, Factor of safetyAbstract
Ankle-Foot-Orthoses (AFOs) are assistive devices used for neurological and physical disorders affecting the movement of the lower limbs. The needs of an increasingly young and active orthotic patient population have led to advancements in ankle foot orthosis (AFO) design and materials to enable higher function. Proper selection of material for manufacturing of AFO leads to greater increase in popularity to patients during walking providing better and compatible ankle foot orthotic device for patient specific. The purpose of this study is to develop design guide to find out the structural characteristics of polypropylene of AFO. In this research work, design and static analysis of a passive AFO to fit a human foot is presented. The static analysis was carried out for AFO made up of Polypropylene material with thicknesses 4 mm. Based on the results obtained from the static analysis. The results obtained from the static analysis showed that the polypropylene AFO was performing better results, generating less stress, deformation, and good factor of safety.
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References
P. Bowker, D. N. Condie, B. L. Bader, D. J. Pratt, and W. A. Wallace, (1993) Biomechanical Basis of Orthotic Management. Butterworth-Heinemann Ltd: Oxford.
M. M. Lusardi, M. M. Jorge, and C. Nielsen, Orthotics (2013) prosthetics in rehabilitation. Third Edition ed. St. Louis, Missouri: Saunders, Elsevier, 219-239.
Park YL, Chen BR, Young D, Stirling L, Wood RJ, Goldfield E, Nagpal R. (2011) Bio-inspired active soft orthotic device for ankle foot pathologies. In Intelligent Robots and Systems (IROS), IEEE/RSJ International Conference on 2011: 4488-4495.
Stewart JD (2008) Foot drop: where, why and what to do? Pract Neurol., Vol. 8(3):158–69.
Romkes J, Brunner R. (2008) Comparison of a dynamic and a hinged ankle-foot orthosis by gait analysis in patients with hemiplegic cerebral palsy. Gait Posture. Vol. 15(1):18–24.
Morshed Alam, Imtiaz Ahmed Choudhury, Azuddin Bin Mamat, (2014), Mechanism and Design Analysis of Articulated Ankle Foot Orthoses for Drop-Foot", The Scientific World Journal, vol. 14
Street JC. Practice Analysis of ABC Certified Assistants in the Disciplines of Orthotics and Prosthetics, American Board for Certification in Orthotics, Prosthetics & Pedorthics
Ramsey JA. (2011) Development of a method for fabricating polypropylene non-articulated dorsiflexion assist ankle foot orthoses with predetermined stiffness. Prosthet Orthot Int. vol. 35(1):55–69.
Banga HK, Belokar RM, Kalra P, Kumar R. (2018) Fabrication and stress analysis of ankle foot orthosis with additive manufacturing. Rapid Prototyp J.vol. 24(2):301–12.
Belokar RM, Banga HK, Kumar R. (2017) A Novel Approach for Ankle Foot Orthosis Developed by Three Dimensional Technologies. IOP Conf Ser Mater Sci Eng. Vol. 280(1).
Cook RD. (2007) Concepts and applications of finite element analysis. John wiley & sons.
Ramstrand N, Jacobs NA. Report of a consensus conference on appropriate lower limb orthotics for developing countries. Hanoi, Vietnam. 2006 Apr: 3-8.
Al Hasan S, Hoque MZ. (2006) Lower limb orthoses: A review. Journal of Chittagong Medical College Teachers' Association. Vol. 19(1):33-6.
Darwin ENA, Tardan G, Abdullah AH. (2018) Computational analysis of adjustable ankle foot orthosis for cerebral palsy children. Int J Eng Technol., Vol. 7(4):83–8.
MatWeb. (2019) Overview of materials for High Density Polyethylene (HDPE). MatWeb database.
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