An Argentine boy has defied doctors' predictions that he would never walk thanks to his father, who created a rehabilitation device out of wooden planks and old bicycle parts.   

Shortly after his birth, Jorge Cardile's son, Ivo, suffered a convulsion that caused brain paralysis, which caused him to lose the use of his legs. 

The home-made machine invented by Cardile helped his son exercise his legs, improving his condition and allowing him to stretch, build muscle and strengthen his weak limbs.

Seeing the positive effects of the machine on his son's life inspired Cardile to try to sell the mechanic walker across the world in order to help others.

Al Jazeera's Teresa Bo reports from Buenos Aires.