Urinary Catheters
A soft plastic or rubber tube that is inserted into the bladder to drain the urine. The catheter may be indwelling, attached to a drainage bag to collect the urine or used for intermittent bladder drainage. Indwelling urinary catheters impregnated with nitrofurazone or minocycline and rifampin or coated with a silver alloy-hydrogel exhibit antiinfective surface activity that significantly reduces the risk of catheter-associated urinary tract infections for short-term catheterizations not exceeding 2-3 weeks.
