ObesityHelp

 There is a store in Saskatoon called Nordon Medical,  they specialize in first-aid and medical supplies, and usually carry lots of kinds of braces,  I am not certain what exactly you are looking for of if they would have one but they would be a good place to start.  There is also another place called Schaan's Health care, they also sell a lot of different medical supplies.

Hope this helps.