Acid & Heat Disin (Disinfect) Program - Fresenius Medical Care 2008T Operator's Manual

Acid & Heat Disin (Disinfect) Program
The 2008T hemodialysis machine should undergo an acid cleaning daily when using
bicarbonate concentrates during dialysis in addition to daily disinfection on treatment days.
The purpose of the Acid & Heat Disin program (software version 2.38 or later) is to prevent
the buildup of bicarbonates inside the machine that can have a detrimental effect on the
machine's performance and treatment efficacy and to then disinfect the machine. The entire
Acid & Heat Disin program must be run in order to both clean and disinfect the
machine.
Acid Cleaning can be done using white distilled vinegar, 5% citric acid, 5% acetic acid, or
peracetic-acid-based disinfectants, such as Puristeril 340.
The Heat Disinfect program disinfects the machine by running hot water (about 80 C)
through the machine. The water circulates at a program-controlled flow of about 400 ml/min.
To run the Acid & Heat Disin program:
1. Attach a sign to the front of the machine that identifies the chemical being used to acid
clean the machine.
2. Ensure that both dialysate lines are on the shunt, and both concentrate connectors are in
their respective ports.
3. From the "Select Program" screen, select Acid & Heat Disin and press CONFIRM. The
Message "Wait: Rinsing Line" appears.
4. Connect the acid and bicarbonate connectors to a jug(s) containing an acid cleaner when
prompted.
5. Press CONFIRM to start the Acid Clean portion of the program. The "Acid Clean"
screen appears in the display (see Figure 63 – The Acid Clean Screen). The progress of
the acid cleaning is indicated by the horizontal bar.
6. Return connectors to their ports when prompted (the machine will beep every 30 seconds
until the connectors are inserted back in the rinse ports). The "Heat Disinfect" screen
appears next in the display (see Figure 64 – The Heat Disinfection Screen). The machine
will automatically run a short rinse (seven minutes standard or ten minutes with Diasafe
Plus) or an extended rinse (20 minutes) depending on how the machine was configured in
Service Mode. The Heat Disinfect starts as soon as the temperature of the water reaches
80° C. The program time can be set internally to run between 10 and 60 minutes.
Warning! During the heat disinfection cycle, it is not uncommon to see steam emitting from
the vent tubing at the back of the machine. This steam may cause burns if contacted. Also,
the temperature of the dialysate lines and drain line can get as hot as 69°C (156 °F). Please
use care.
Warning! Do not open the bibag door during a Heat Disinfection, as serious injury may
occur. Keep the bibag door closed when running any rinse or disinfection program.
2008T Machine Operator's Manual P/N 490122 Rev N
Chapter 5—Disinfection and Maintenance
149