A new method for optical control of manipulative-type orthoses for high-level quadriplegics

Simmons J.M. and Radcliffe D.F. (1976) A new method for optical control of manipulative-type orthoses for high-level quadriplegics. Medical & Biological Engineering, 14 3: 282-288. doi:10.1007/BF02478122


Author Simmons J.M.
Radcliffe D.F.
Title A new method for optical control of manipulative-type orthoses for high-level quadriplegics
Journal name Medical & Biological Engineering   Check publisher's open access policy
ISSN 0025-696X
Publication date 1976-01-01
Sub-type Article (original research)
DOI 10.1007/BF02478122
Volume 14
Issue 3
Start page 282
End page 288
Total pages 7
Publisher Kluwer Academic Publishers
Subject 2200 Engineering
2700 Medicine
Abstract An optical device has been developed to enable a high-level quadriplegic to control two degrees-of-freedom of a manipulative-type orthosis by natural head movements. A photosensitive array on the orthosis 'locks' onto and follows a beam of light from a head-mounted light-emitting diode, facilitating a closed-loop mode of control as opposed to the currently used open-loop orthotic control systems. The optical and electronic detection systems which eliminate problems due to background illumination are described and the importance of some properties of the beam is discussed. Results are presented of preliminary tests with the optical controller and a conventional on/off controller coupled in turn to a simple orthosis. The speed and ease with which the orthosis position can be controlled, together with the low level of concentration required of the operator, vindicate the new closed-loop concept.
Keyword Optical control
Orthoses
Quadriplegia
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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