Abstract:
Prosthesis is a device extension which is used to
replace a missing body part. Amputees who lost all or part of the
upper limb may use a prosthesis depending on their requirement.
Externally powered prosthesis holds an importance since it is
capable of imitating natural limb motions. However, the way they
are controlled stand way back from the natural limb. Myoelectric
control systems which uses electromyographic signals holds an
important role in controlling prosthesis. This paper reviews the
myoelectric control systems for upper limb prosthesis. At first
control methods based only on myoelectric signals are briefly
reviewed. The main focus is given to review hybrid myoelectric
control systems. Hybrid myoelectric control methods are
categorized and each category is compared and reviewed. Finally
feasibility of using vision as an added sensor was discussed with
examples from literature.
