[AMP-L] AI Is Revolutionizing Prosthetic Arm Control

Wayne Renardson wrenardson at gmail.com
Tue Mar 22 05:22:43 PDT 2022


via Discover Mag:

Advances in the fine motion capable with prosthetic arms has not been
matched by in users' ability to control them. AI systems are changing.
Prosthetic hands and arms have dramatically improved in recent years,
thanks to advances that allow independently moving fingers, control
over multiple joints, personalized 3D printing and so on.

Despite these breakthroughs, most users find prosthetic arms difficult to
control. The most common control mechanism records the electrical
activity in the arm muscles - a technique known as myoelectric
sensing-and then uses this to actuate the prosthetic.

The problem is that users usually have to contract their muscles in
specific combinations of patterns to generate hand or wrist motions.
These patterns are often counterintuitive, time consuming and
frustrating.

At the heart of this problem is that neuroscientists do not know how to
accurately decode the signals the brain sends through nerves to control
muscles. And that makes it hard to interpret nerve signals accurately.

The rest of the story, with photo, here:

https://tinyurl.com/yc74rnw5

Wayne R.





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