Catheterising Bladders. Urinary catheterisation ...
Apr 18, 2016·Some patients are allergic to latex. The silicone layer tends to become damaged after a while and the underlying latex may again come into contact with the urothelium, which restricts the use of silicone latex catheters to 1-2 weeks when they should either be removed or replaced. Hydrogel is an alternative latex coating.