Powered prostheses have come a long way in the last twenty five years. A good way
to track this activity is simply to review the proceedings of the Myo-Electric Controls
(MEC) conferences that have been held during that time. Some of the highlights are
listed here especially those that led to further developments. Two-electrode threshold
control, three-state control, quick-slow control, cookie crusher voluntary open control,
proportional control, shifting of control to a second device, control using a force
servo, the positional servo control, simultaneous control of two or more devices,
circuits with plugs or switches to select an optimal control scheme for a particular
user, the interfacing of a computer to let the prosthetist tune the control system
to the user, the use of a computer to store complex control programs that can be downloaded
to the control system to test their suitability for the user, voice activated control,
the use of RF to isolate the setup computer from the prosthesis, and much more.
Proceedings of the MEC’05 conference, UNB; 2005.
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