Abstract
Abstract
Background
State-of-the-art bionic hands incorporate hi-tech devices which try to overcome limitations of conventional single grip systems. Unfortunately, their complexity often limits mechanical robustness and intuitive prosthesis control. Recently, the translation of neuroscientific theories (i.e. postural synergies) in software and hardware architecture of artificial devices is opening new approaches for the design and control of upper-limb prostheses.
Methods
Following these emerging principles, previous research on the SoftHand Pro, which embeds one physical synergy, showed promising results in terms of intuitiveness, robustness, and grasping performance. To explore these principles also in hands with augmented capabilities, this paper describes the SoftHand 2 Pro, a second generation of the device with 19 degrees-of-freedom and a second synergistic layer. After a description of the proposed device, the work explores a continuous switching control method based on a myoelectric pattern recognition classifier.
Results
The combined system was validated using standardized assessments with able-bodied and, for the first time, amputee subjects. Results show an average improvement of more than 30% of fine grasp capabilities and about 10% of hand function compared with the first generation SoftHand Pro.
Conclusions
Encouraging results suggest how this approach could be a viable way towards the design of more natural, reliable, and intuitive dexterous hands.
Publisher
Springer Science and Business Media LLC
Subject
Health Informatics,Rehabilitation
Reference53 articles.
1. Atkins DJ, Heard DC, Donovan WH. Epidemiologic overview of individuals with upper-limb loss and their reported research priorities. J Prosthetics Orthot. 1996; 8(1):2–11.
2. Belter JT, Segil JL, SM B. Mechanical design and performance specifications of anthropomorphic prosthetic hands: a review. J Rehabil Res Dev. 2013; 50(5):599.
3. Jiang N, Dosen S, Muller K-R, Farina D. Myoelectric control of artificial limbs–is there a need to change focus?[in the spotlight]. IEEE Signal Proc Mag. 2012; 29(5):152–0.
4. Cheesborough JE, Smith LH, Kuiken TA, Dumanian GA. Targeted muscle reinnervation and advanced prosthetic arms. In: Seminars in Plastic Surgery, vol. 29. Seminars in plastic surgery: Thieme Medical Publishers: 2015. p. 62.
5. Roche AD, Rehbaum H, Farina D, Aszmann OC. Prosthetic myoelectric control strategies: a clinical perspective. Curr Surg Rep. 2014; 2(3):44.
Cited by
13 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献