Brace For Lynn

I am asking for help for my brother, Lynn Wagner. He has MS. He has not been able to work for quite some time now. He has been on disability. He had a brace for his one leg that he got second hand. It is no longer working. Without this brace, in time he will not be able to walk. This brace is Bioness L300. It has electrical stimulation that activates the muscles in his calf. With this brace Lynn will be able to go out more on his own. I would appreciate any help anyone could give to him. It has been a tough road for him. I want him to be able to go out and do some of the things he use to, when he had this brace.