Double arm amputee Jason Koger traveled to Advanced Arm Dynamics in Cleveland to demonstrate the i-limb ultra revolution prosthesis to Holly Maxwell, who lost her left arm when she was 10. Koger uses a smartphone application to program the hand, which offers 24 grip patterns and customizable options. Being able to adjust the grip at home is a valuable feature, said prosthetist Brian Waryck, clinical manager of the facility. "[T]here are differences in the home environment that we just can't duplicate here, and that can affect how this works."

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