Journal of Rehabilitation Research & Development (JRRD)

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Volume 51 Number 7, 2014
   Pages 1095 — 1102

Abstract — Advantages of externally powered prosthesis with feedback system using pseudo-cineplasty

Seiji Nambu, MD;1 Mitsuhiko Ikebuchi, MD;2 Masashi Taniguchi;3 Choong Sik Park;3 Takahiro Kitagawa;3 Shigeyoshi Nakajima, PhD;4 Tatsuya Koike, MD, PhD5*

Departments of 1Orthopaedic Surgery and 2Rehabilitation, Osaka City University Medical School, Osaka, Japan; 3Control Engineering and Electronic Materials, Technology Research Institute of Osaka Prefecture, Izumi, Japan; 4Department of Information and Communication Engineering, Osaka City University Graduate School of Engineering, Osaka, Japan; 5Department of Rheumatosurgery, Osaka City University Medical School, Osaka, Japan

Abstract — Externally powered upper-limb prostheses are difficult to use because of the lack of sensory feedback. Neuroprostheses have recently been developed for people with upper-limb amputation but are complicated, expensive, and still developing. We therefore designed a simple system by combining pseudo-cineplasty with extended physiological proprioception to provide sensory feedback to the body. We penetrated the palmaris longus tendon percutaneously with a metal ring, similar to that used in body piercing, in a nondisabled subject as a pseudo-cineplasty. The tendon and ring were connected to the system, and a sensory feedback experiment was performed. We investigated the ability of the user to determine the size of an object grasped by the prosthetic hand without visual information. The subject could distinguish between large and small objects with 100% accuracy and between small, medium, and large objects with 80% accuracy. In pseudo-cineplasty, control and sensory feedback are natural because the prosthetic hand is controlled by muscle contraction. Tension transmitted from the prosthetic hand is sensed via muscle spindles and skin sensors. This technique allows only partial sensory feedback but appears to offer several advantages over other human-machine interfaces.

Key words:amputation, cineplasty, extended physiological proprioception, externally powered prosthesis, human-machine interface, muscle spindles, myoelectric prosthesis, sensory feedback, transinformation, upper limb.

View HTML ¦ View PDF ¦ Contents Vol. 51, No.7

This article and any supplementary material should be cited as follows:
Nambu S, Ikebuchi M, Taniguchi M, Park CS, Kitagawa T, Nakajima S, Koike T. Advantages of externally powered prosthesis with feedback system using pseudo-cineplasty. J Rehabil Res Dev. 2014;51(7):1095–1102.
ResearchID/ORCID: Seiji Nambu, MD: L-3947-2014; Mitsuhiko Ikebuchi, MD: L-4808-2014; Shigeyoshi Nakajima, PhD: L-4400-2014; Tatsuya Koike, MD, PhD: L-5533-2014

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Last Reviewed or Updated  Wednesday, November 12, 2014 10:48 AM

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