Welch Allyn Ear Wash System 29350 - User Manual - Manual (Page 17)

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• Allow the chamber to drip dry. Place the unit in its holding con-
tainer.
• To facilitate a recommended thorough flush and faster drying
time, pour isopropyl rubbing alcohol inside the chamber and
hoses.
To Disinfect the Unit
Follow Cleaning instructions, except replace the soapy water with a 2
cup solution of isopropyl rubbing alcohol or a 10% bleach/90% water
solution. Rinse handle thoroughly with water after cleaning solution is
used.
To High Level Disinfect the Unit
• Prepare at least 2 cups of .55% Ortho-Phthalaldehyde solution
(Welch Allyn recommends the use of Cidex OPA).
• Pour at least 2 cups of the solution into the top opening of the
coupler.
• Replace the chamber on the faucet and submerge the handle
interface surface (where the tip attaches) into the solution. Turn
on the water. Do not squeeze the actuator. After half of the solu-
tion is removed, turn the water off.
• Remove handle from solution and rest it in the handle rest/grip
ring. This will trap the solution in the return line and allow effec-
tive disinfection. Follow the manufacturers recommendations on
soak times for maximum benefit.
• Remove the chamber from the faucet.
• To remove any residual disinfecting solution in the tubing, place
the open end in the sink, squeeze the actuator and the solution
will run out into the sink basin.
If hard water/ calcium buildup is a concern, a solution of 100% vine-
gar can be substituted. Allow the vinegar to soak in the chamber for
no more than 2-3 minutes. A final flush of isopropyl alcohol is
required.
Do not use solutions that contain chlorohexidene.
Do not sterilize the unit with other methods such as ETO or auto-
clave. These methods may damage the unit.