Development and Manufacturing of a Controlled 3D Printed Bionic Hand
Keywords:bionic hand, AI, 3D printing, low-budget
During a current project, a fully functioning prototype of a 3D printed bionic hand was developed. This paper explains principles such as: bionic hand movement, working rules of sensors and actuators etc. Design of all parts are performed, including the wiring of control system. The project includes two types of sensor control systems for bionic hand. One is with stretch sensors that replicates movement of human hand onto the bionic model. Other type is using machine learning (AI) and a camera. The average amputee cost is $30.000,00 for a new custom-built arm/hand. With the advancement of technology through time, manufacturing processes became cheaper and more accessible. Technical innovation of this project was the fact, that a functional prosthetic hand prototype was built for price lower than $50,00. The prototype does not have all the functions and capabilities as the full priced custom prosthetic hand, but it can replicate altogether the movements as the real device. All the fingers are capable of moving individually, sideways and with the work on the new version, gripping function could be perfected. Further work on materials, could help find the adequate material to increase friction and thusly enhance the grasp strength. The new challenge would involve testing with different kinds of materials to improve the working stability. As it was already unfavorable, this project was mostly based onto the actuation part, or rather the hand itself. Second part of research would involve exploring of different sensor systems. Two control solutions were designed and tested. Next steps would involve neurotransmission sensors, where arm would be controlled using brainwaves as signals that are transformed in movement.
Taylor C, Scwarz R. The Anatomy and Mechanics of the Human Hand. Artificial Limbs . 1955;2(2):22-35.
Shi W, Lyu Z, Tang S, Chia T, Yang C. A bionic hand controlled by hand gesture recognition based on surface EMG signals: A preliminary study. Biocybernetics and Biomedical Engineering. 2018;38(1):126-135. https://doi.org/10.1016/j.bbe.2017.11.001
Bronzino J, Peterson D. Biomedical engineering fundamentals. 2nd Edition. CRC Press; 2014. https://doi.org/https://doi.org/10.1201/b15482
Clement R, Bugler K, Oliver C. Bionic prosthetic hands: A review of present technology and future aspirations. The Surgeon. 2011 Dec;9(6):336-340. https://doi.org/10.1016/j.surge.2011.06.001
Aman M, Sporer ME, Gstoettner C, Prahm C, Hofer C, Mayr W, Farina D, Aszmann OC. Bionic hand as artificial organ: Current status and future perspectives. Artificial Organs. 2019 02;43(2):109-118. https://doi.org/10.1111/aor.13422
Syed A, Agasbal ZTH, Melligeri T, Gudur B. Flex Sensor Based Robotic Arm Controller Using Micro Controller. Journal of Software Engineering and Applications. 2012;05(05):364-366. https://doi.org/10.4236/jsea.2012.55042
Copyright (c) 2021 Hasan Smajic, Toni Duspara
This work is licensed under a Creative Commons Attribution 4.0 International License.