Keywords
Low-cost prosthetics
Myoelectric prosthetic arm
3D printing
Tendon-driven actuation
How to Cite
Abstract
This study focuses on the design, development, and enhancement of a cost-effective myoelectric prosthetic arm intended for daily functional use. The initial prototype was fabricated using Fused Deposition Modeling (FDM) 3D printing technology with acrylonitrile butadiene styrene (ABS) as the base material. This approach enabled the creation of a lightweight, portable prosthetic arm with a human-like appearance and six degrees of freedom, allowing for the execution of essential daily activities. The actuation mechanism is based on an artificial tendon-driven system inspired by prior works such as the Vanderbilt Hand and the prosthetic hand developed at Hitit University. The tendon-driven structure allows for coordinated finger movement while preserving mechanical simplicity. Actuation is achieved using standard servo motors, controlled by surface electromyography (sEMG) signals acquired from the user’s forearm muscles. The initial version of the device was constructed with a material cost of approximately 250, achieving a grip force of around 3N per finger and a complete actuation cycle time of approximately 0.4 s. Despite demonstrating satisfactory functional performance, early user evaluations revealed challenges related to control intuitiveness and system integration, as reflected in user feedback surveys. To address these limitations and enhance usability, several technological upgrades were implemented. The original microcontroller was replaced with an Arduino Mega, and an ESP8266-07 Wi-Fi module was integrated to enable wireless communication. These enhancements significantly improved data transmission, real-time signal processing, and remote monitoring capabilities.
References
Belter, J. T., Segil, J. L., Dollar, A. M., & Weir, R. F. (2013). Mechanical design and performance specifications of anthropomorphic prosthetic hands: A review. Journal of Rehabilitation Research and Development, 50(5), 597–618.
Brooker, G. (2012). Introduction to Biomechatronics. Scitech Publishing.
Cotton, D. P. J., Cranny, A., White, N. M., & Chappell, P. H. (2014). Control strategies for a multiple degree of freedom prosthetic hand. Measurement and Control, 47(2), 49–54.
Day, S. (2010). Important factors in surface EMG measurement. Bortec Biomedical Ltd. Technical Report, 1–12.
Dhillon, G. S., & Horch, K. W. (2005). Direct neural sensory feedback and control of a prosthetic arm. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 13(4), 468–472.
ElKoura, G., & Singh, K. (2003). Handrix: Animating the human hand. In Proceedings of the 2003 ACM SIGGRAPH/Eurographics Symposium on Computer Animation (pp. 110–119).
exrx.net. (2023). Body segment data. Retrieved from https://exrx.net/Kinesiology
Hudgins, B., Parker, P., & Scott, R. N. (1993). A new strategy for multifunctional myoelectric control. IEEE Transactions on Biomedical Engineering, 40(1), 82–94.
i.materialise. (2014). ABS 3D printing design guide. Retrieved from https://i.materialise.com/blog/abs-3d-printing-design-guide
Lake, C. (2010). Partial hand amputation: Prosthetic management. In Atlas of Amputations and Limb Deficiencies (4th ed., pp. 189–198). American Academy of Orthopaedic Surgeons.
Langevin, G. (2014). InMoov: Open source 3D printed life-size robot. Retrieved from https://inmoov.fr/
Melchiorri, C., Palli, G., Berselli, G., & Vassura, G. (2013). Development of the UB hand IV: Overview of design solutions and enabling technologies. IEEE/ASME Transactions on Mechatronics, 18(4), 1441–1451.
Pylatiuk, C., Schulz, S., & Doderlein, L. (2007). Results of an internet survey of myoelectric prosthetic hand users. Prosthetics and Orthotics International, 31(4), 362–370.
RSL Steeper. (2014). Bebionic 3 Technical Information. RSL Steeper Ltd.
Shedeed, H. A., Issa, M. F., & El-sayed, S. M. (2013). Brain EEG signal processing for controlling a robotic arm. In 2013 8th International Conference on Computer Engineering & Systems (ICCES) (pp. 152–157). IEEE.
Touch Bionics. (2014). i-limb digits clinician user manual. Touch Bionics Ltd.
Weir, R. F. (2003). Design of artificial arms and hands for prosthetic applications. In M. Kutz (Ed.), Standard Handbook of Biomedical Engineering and Design (pp. 32.1–32.39). McGraw-Hill.
Wiste, T. E., Dalley, S. A., Withrow, T. J., & Goldfarb, M. (2009). Design of a multifunctional anthropomorphic prosthetic hand with extrinsic actuation. In 2009 IEEE International Conference on Rehabilitation Robotics (pp. 675–681). IEEE.
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