I've learned a lot of thing coming on this post. I've discovered it lately, so 38 sheets to read. On the past i've used for years a foley cath and after i decided to modify it. Very close to some ideas i've seen here. Unfortunately i had a very bad experience. One of my DIY stent have finished on my bladder. I needed to go to emergency to take it off (a very very bad experience) ...So i just can just tell you the wire is one of the most important security way not to finish on hospital. This bad experience drove me to re think about my incontinence desire. In 2011 In tunisia i found a urologist and the incontinence process have started. Botox then, diabolo stent, then incontinentation (or sphincterotomy) ...
Below the pictures of my own past DIY foley cath (with the process : in french sorry).
The blog posts related are here :
https://www.nathan-chevalier.fr/wordpress/victoire-confirmee/
https://www.nathan-chevalier.fr/wordpress/la-solution-finale/
https://www.nathan-chevalier.fr/wordpress/tuyau-de-pisseux-suite/