Early last year Honda demonstrated how their robot Asimo could lift an arm or a leg through signals sent wirelessly from a system operated by a user with an EEG cap.

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The 57-pound device is a robot that a human could wear over his or her body either to assist or inhibit movement in leg joints.

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One of the first patients to undergo the procedure using the robot was 70-year-old arthritis sufferer May Walker, who had the same operation on her other leg 11 years ago.

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