If natural emptying of the bladder via the urethra no longer works or is greatly limited, a transurethral (through the urethra) or a suprapubic (through the abdominal wall) bladder drainage with a catheter is used.
The front part of the catheter is in the bladder and is fixed there with the help of a balloon, whereas the rear part protrudes out of the urethra and is connected with a urine bag.
We distinguish between open, half-closed and closed urine drainage systems.
With open systems the urine drips permanently in an open container.
Because of the high risk of an infection these systems are not longer used today.
With half-closed systems the catheter is connected with the urine bag.
But for disposal the bag has to be disconnected and this leads to an increase of the risk of an infection.
Significantly reduced rates of infections can only be achieved by use of closed
systems where the emptying of the bag is done by a stopcock.
All of these systems have an anti-reflux valve, that prevents the flow-back of the urine into the catheter.
Some of these systems are additionally equipped with a drip chamber (Pasteur chamber), that disconnect the urine flow.
That makes sure that germs which will grow in the bag, can not go with the urine flow in the direction of the bladder.
From the purpose we distinguish between bed bags, leg-bags and und urine bags for the short-term urine drainage.
The differences within the respective versions relate first of all to filling volume and the length of the tubing that has to be connected with the catheter.
The range of products of medfein comprises closed systems in different versions and filling volumes.
As standard the closed urine drainage system TZ01 and the bed bag
SLC19 are both equipped with a drip chamber (Pasteur chamber).