I did not mean to "attack" anyone with the bold text and i didn't think that any one would be offended by it. But still i'm sorry.
I don't know to much about the anatomy and also i don't know anything about making stents but all i know is that i read a bit about it, for example on their page (https://www.srsmedical.com/the-spanner-stent/), and everywhere i looked it was always that you don't get incontinent.