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3D Computational Design of Patient-specific Ultrasound Reinforced Hand Orthosis

Ayham Darwich, Szabolcs Szávai, Hasan Mohammad Nazha

Abstract


This study presents an integrated approach related to the numerical design of hand orthosis reinforced by ultrasound. Three-dimensional design technologies provide promising tools to improve current design methods, where ultrasound waves are utilized to enhance efficiency by stimulating bone growth and activating blood flow in the place of fracture. In this study, radial computed tomographic images were acquired to produce a numerical model of the injured hand, and this model helped in establishing a three-dimensional numerical model of a smart patient-specific orthosis. Hand digital model has been achieved thanks to image processing techniques, whereas orthosis numerical design was produced using SolidWorks software known as a three-dimensional mechanical design program. The ultrasound generator was positioned and interfaced with an electronic circuit thanks to an Arduino UNO chip. The proposed engineering approach enabled the production of personalized patient-specific orthosis models. Ultrasound waves were proposed with different intensities so that the orthosis can be used in different therapeutic protocols and different age groups to obtain the maximum benefit of treatment.

Keywords


Orthotic design, hand orthosis, ultrasound reinforced orthoses, electronic chip, mechanical design program

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References


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