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Shimizu Y, Mori T, Yoshikawa K, Katane D, Torishima H, Hara Y, Yozu A, Yamazaki M, Hada Y, Mutsuzaki H. Developing a Novel Prosthetic Hand with Wireless Wearable Sensor Technology Based on User Perspectives: A Pilot Study. SENSORS (BASEL, SWITZERLAND) 2024; 24:2765. [PMID: 38732871 PMCID: PMC11086240 DOI: 10.3390/s24092765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 04/13/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024]
Abstract
Myoelectric hands are beneficial tools in the daily activities of people with upper-limb deficiencies. Because traditional myoelectric hands rely on detecting muscle activity in residual limbs, they are not suitable for individuals with short stumps or paralyzed limbs. Therefore, we developed a novel electric prosthetic hand that functions without myoelectricity, utilizing wearable wireless sensor technology for control. As a preliminary evaluation, our prototype hand with wireless button sensors was compared with a conventional myoelectric hand (Ottobock). Ten healthy therapists were enrolled in this study. The hands were fixed to their forearms, myoelectric hand muscle activity sensors were attached to the wrist extensor and flexor muscles, and wireless button sensors for the prostheses were attached to each user's trunk. Clinical evaluations were performed using the Simple Test for Evaluating Hand Function and the Action Research Arm Test. The fatigue degree was evaluated using the modified Borg scale before and after the tests. While no statistically significant differences were observed between the two hands across the tests, the change in the Borg scale was notably smaller for our prosthetic hand (p = 0.045). Compared with the Ottobock hand, the proposed hand prosthesis has potential for widespread applications in people with upper-limb deficiencies.
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Affiliation(s)
- Yukiyo Shimizu
- Department of Rehabilitation Medicine, Institute of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
- Ibaraki Prefectural University of Health Sciences Hospital, Ami 300-0331, Japan
| | - Takahiko Mori
- Department of Electrical and Electronic Engineering, Shonan Institute of Technology, Fujisawa 251-8511, Japan
| | - Kenichi Yoshikawa
- Ibaraki Prefectural University of Health Sciences Hospital, Ami 300-0331, Japan
| | - Daisuke Katane
- Ibaraki Prefectural University of Health Sciences Hospital, Ami 300-0331, Japan
| | - Hiroyuki Torishima
- Saitama Prosthetics and Orthotics Manufacturing Service Co., Ltd., Saitama 337-0051, Japan
| | - Yuki Hara
- Department of Neurophysiology, National Center of Neurology and Psychiatry, Kodaira 187-8551, Japan
| | - Arito Yozu
- Department of Precision Engineering, University of Tokyo, Bunkyo 113-8656, Japan
| | - Masashi Yamazaki
- Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Yasushi Hada
- Department of Rehabilitation Medicine, Institute of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Hirotaka Mutsuzaki
- Ibaraki Prefectural University of Health Sciences Hospital, Ami 300-0331, Japan
- Center for Medical Science, Ibaraki Prefectural University of Health Sciences, Ami 300-0331, Japan
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Pasluosta C, Kiele P, Čvančara P, Micera S, Aszmann OC, Stieglitz T. Bidirectional bionic limbs: a perspective bridging technology and physiology. J Neural Eng 2022; 19. [PMID: 35132954 DOI: 10.1088/1741-2552/ac4bff] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 01/17/2022] [Indexed: 11/11/2022]
Abstract
Precise control of bionic limbs relies on robust decoding of motor commands from nerves or muscles signals and sensory feedback from artificial limbs to the nervous system by interfacing the afferent nerve pathways. Implantable devices for bidirectional communication with bionic limbs have been developed in parallel with research on physiological alterations caused by an amputation. In this perspective article, we question whether increasing our effort on bridging these technologies with a deeper understanding of amputation pathophysiology and human motor control may help to overcome pressing stalls in the next generation of bionic limbs.
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Affiliation(s)
- C Pasluosta
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
| | - P Kiele
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
| | - P Čvančara
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany.,BrainLinks-BrainTools, University of Freiburg, Freiburg, Germany
| | - S Micera
- School of Engineering, École Polytechnique Fédérale de Lausanne, Bertarelli Foundation Chair in Translational Neuroengineering, Centre for Neuroprosthetics and Institute of Bioengineering, Lausanne, Switzerland.,The BioRobotics Institute and Department of Excellence in Robotics and Artificial Intelligence, Scuola Superiore Sant'Anna, Pisa, Italy
| | - O C Aszmann
- Clinical Laboratory for Bionic Extremity Reconstruction, Medical University of Vienna; Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - T Stieglitz
- Laboratory for Biomedical Microtechnology, Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany.,Bernstein Center Freiburg, University of Freiburg, Freiburg, Germany.,BrainLinks-BrainTools, University of Freiburg, Freiburg, Germany
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