artificial right leg or bionic leg required

Hi guest sorry to hear about your wife.

Your Doctor or medical personnel should be the good source to start at.

There was a news item not so long ago about an organization assisting people in getting artificial limbs.

If you tell us where you are from, what your situation and requirements is. Somebody on CR4 might know who you should contact.

Then there is this Canadian that made a robot named Aiko. Google for "Aiko robot" for more information.