It is recommended that all repairs be performed by a qualified GSI service
representative. Any malfunctions resulting from improper maintenance or
repair by anyone other than an authorized GSI representative will void all
warranties.
Cleaning and Disinfecting Agents
According to the recommendations from the CDC, audiometric equipment is considered
to be non-critical medical equipment and typically requires cleansing followed by low-to
intermediate-level disinfecting, depending on the nature of the contamination. Cleaning
should be done with a mild soapy detergent (such as dishwashing liquid) and a damp
cloth or an Endozime Sponge followed by an application of EPA-registered hospital
disinfectant. Do not use any abrasive cleaners.
Use of a non-alcohol based disinfectant is recommended for larger areas and headphones.
Non-alcohol based products contain the active ingredient referred to as quaternary
ammonia compound or hydrogen peroxide based cleaner such as Oxivir Disinfecting
Wipes to clean the ear cushions, headset, and to wipe down the machine. The quaternary
ammonia compound and hydrogen peroxide are specifically designed to disinfect rubber,
plastic, silicone and acrylic products which are commonly used in hearing evaluation
instruments.
! CAUTION
Many common disinfectant wipes present in hospitals contain alcohol as a main
disinfection ingredient. However, alcohol chemically denatures certain materials, such as
material used in the ear cushion. With repeated exposure to alcohol-based disinfectants,
the earphone material will harden, crack and breakdown over time. The higher alcohol
content of the disinfectant, the faster the earphone will be affected. If alcohol disinfectant
wipes are used to disinfect the earphone cushion is will need to be replace more
frequently than if a non-alcohol based disinfectant is used.
Cleaning patient contact reusable devices
To help ensure patient safety, prevent cross infection and provide effective service,
Grason-Stadler devices must be properly maintained. Maintenance should include
cleaning patient contact parts prior to each use. The earphone cushions and patient hand
switch can be wiped with a slightly damp cloth containing soap and water, ammonia
based cleaners or bleach based cleaners. Gently wipe the earphone cushions with the
slightly damp cloth taking care not to get moisture in the speaker portion of the
earphones.
3-2 1718-0100 Rev. E
GSI 18
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