As director at the Neural Engineering Center for Artificial Limbs at the Rehabilitation Institute of Chicago, Dr. Todd Kuiken has found both a partner and a patient in Jesse Sullivan – a double amputee who has become the world’s first bionic man. This presentation at Pop!Tech shows Mr. Sullivan as he is: a remarkable man, possessing the patience of Job and a remarkable spirit. “Technology should make life easier,” says Dr. Kuiken (pronounced “KAI-ken”). “The cardinal rule is: Make technology to enable the human.” But at the Rehabilitation Institute of Chicago (RIC), Kuiken is changing a human to enable technology, namely robotic body parts. The technique pioneered by Dr. Kuiken’s team is a muscle reinnervation procedure that takes an amputee’s own nerves and connects them to a healthy muscle. In this case, four of Mr. Sullivan’s nerves were dissected from the shoulder and transferred to the muscles of his chest. Doing so allows the user to move the prosthetic arm as if it were a real limb – by simply thinking about what they want the arm to do. The migration from body-part prosthesis to myoelectric arm uses electrical signals from the muscles of the chest, now activated by the user’s own thought-generated nerve impulses. These “listen” to the muscle to determine when it is contracting. The big problem is operating all the subtle movements of arm, wrist and fingers. So how can hardware be created to listen to the subtle signals of nerves? Kuiken admits that he is “cheating the system” to allow wires to grow into the nerves and muscles to provide more control signals. The physical advantages are multiple control and multiple movements. But as the kindhearted and self-deprecating Sullivan describes, the true benefits are being able to play with his grandchildren, to work around the house, and to be of service to his wife and family. ~ From IT Conversations website |