Urostomy Leakage Issues and Seeking Advice

Hi, I am hoping for suggestions from the experts.  My name is Roxanne, I am the wife of Doug, who has a urostomy (he is also parapeligic and confined to a chair). 

Recently we have been having a lot of leakage.  Everyday I am having to change the appliance.  His urostomy does not have anything protruding, and is flush with his skin, and also is very low on his abdomine (to the right of and slightly lower than his belly button).  He has recently gained some weight, changeing the shape of the ostomy, and it seems that when sitting the stoma is almost laying on his leg.  I think this is causing the blockage of flow and causing it to leak out the sides of the flange.  Any suggestions on how I might change this.  I have gone to a larger cut out, but it is still leaking. 

Have you tried any soft convex pouches? They are designed to make the stoma "spout" and hopefully prevent leaks. You could ask your preferred manufacturer for samples.

I am not an expert but i can tell you  what works for me maybe there will be some part that may help. I have always used hollister so i clean the area around the stoma and the area that the applince will be with the wipes. after i put the flange and wafer on i use a hair drayer to warm the wafer then i put my hand over the applince and press down and hold my hand there for about five minutes to get a good seal. also when ijust sitting in a chair i put a hose on the pouch and down to a plastic bottle that way it just keeps draining and i don't need to keep checking how full the pouch is getting. I change mine out every seven days could keep it on longer but this way i never have a leak. hope in some this can help you.

Bill