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Proceedings Paper

NIRS monitoring of muscle contraction to control a prosthetic device
Author(s): Thomas Bianchi; Daniela Zambarbieri; Giorgio Beltrami; Gennaro Verni
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Paper Abstract

The fitting of upper-extremity amputees requires special efforts, and its significance has been increased by the development of the myoelectrically controlled prosthetic arm. This solution is not free of problems due to the nature of the amputation, to the electromagnetic noise affecting the myelectrical signal and to the perspiration due to the contact between socket and the residual limb. Starting from the fact that NIRS and electromyographic signals are similar during a muscle contraction, we have first studied the NIRS signal during forearm muscle contractions in normal and amputee subjects. Then a new system to interface the NIRS unit and the myoelectrical prosthetic hand has been developed. The NIRS unit has been used as optical sensor and all the operations (I/O and signal processing) are performed via software. This system has been tested on normal and amputee subjects performing hand grasping using a visual biofeedback control scheme. All the subjects have been able to perform these operations demonstrating the NIRS technique. This could represent an alternative solution for controlling a prosthetic device.

Paper Details

Date Published: 15 January 1999
PDF: 7 pages
Proc. SPIE 3570, Biomedical Sensors, Fibers, and Optical Delivery Systems, (15 January 1999); doi: 10.1117/12.336926
Show Author Affiliations
Thomas Bianchi, Univ. degli Studi di Pavia (Italy)
Daniela Zambarbieri, Univ. degli Studi di Pavia (Italy)
Giorgio Beltrami, Univ. degli Studi di Pavia (Italy)
Gennaro Verni, Ctr. Protesi INAIL (Italy)

Published in SPIE Proceedings Vol. 3570:
Biomedical Sensors, Fibers, and Optical Delivery Systems
Francesco Baldini; Nathan I. Croitoru; Martin Frenz; Ingemar Lundstroem; Mitsunobu Miyagi; Riccardo Pratesi; Otto S. Wolfbeis, Editor(s)

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