Cleaning, Disinfecting, Sterilizing
VF4 Infinity Gamma Series Page B-9
Cleaning/Sterilizing Procedure
To clean and sterilize the sidestream pump:
1. Fill the 60cc catheter-tip syringe with cleaning/sterilizing
fluid, and fix it to the sidestream input connector on the
etCO
2
pod.
2. Flush the fluid slowly through the pumping system and out
through the tubing connected to the exhaust port. Repeat two
more times for a total of 180cc of fluid.
3. Remove the syringe. Leave remaining fluid in the pumping
system for 30 minutes. This disinfects the system. If you are
using a locally approved sterilant, follow the manufacturer’s
instructions for sterilization times.
4. After 30 minutes, fill the syringe with distilled water and
flush through the system. Repeat two more times.
5. Empty the syringe and use it to push several volumes of air
slowly through the system. This clears most of the steriliza-
tion solution from the pump.
6. Remove the syringe from the pod, but keep the drain tubing
in place.
Drying the Sidestream Pump Subsystem
After you have cleaned, sterilized, and removed most of the fluid,
it is important to dry the pump subsystem completely.
To dry the sidestream pump subsystem:
1. Re-attach the etCO
2
pod to the monitor. The sidestream sam-
pling pump starts running, and there is suction at the input
port on the face of the pod.
NOTE: If the sidestream pump fails to start, make sure the capno-
stat sensor is disconnected. The pump is designed to shut down
while a connected sensor is warming up.
2. With the input sidestream port still open and the drain tubing
still connected, let the pump run for several minutes to
remove any water still trapped in the system.