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Spare parts
You can reorder the following spare parts:
replacement bulb
cover black/white
type 507
type 57.00.02/57.20.02
Operation
General
With the purchase of the nystagmus spectacle type 501/521 you have the opportunity to do an examination for which
the nystagmus spectacle remain for a longer time on the patient‘s head. The associated clip-head strap provides a
secure fixation of the spectacle in front of the patient´s eyes and facilitates an easy search spontaneous and provoked
nystagmus e.g. through shaking the head, storing or examinations on swivel-chaires.
The nystagmus spectacle is equipped with strong refractive biconvex magnifying lenses with a power of +15 to +18
diopters. They prevent a sharp vision and the fixation of objects. In this way, the patient‘s visual contact with objects
in the environment is interrupted, which would hinder the fast eye movements. At the same time the highly illuminated
eyes are easily observable under magnifying glasses.
Use
• Clean the nystagmus spectacle with a soft cloth moistened with water and a mild, alcohol-free detergent before each
use. Then dry the glasses thoroughly with a soft dry cloth.
• Please make sure that the nystagmus spectacle is in an undamaged, technically perfect condition.
• Hold to the patient the nystagmus spectacle in front of the eyes over the nasal bridge.
• Place the clip-head strap over the patient‘s ears and around the back of the head.
• Make sure that the nystagmus spectacle do not shift during the examination. If necessary, tighten the clip- head
strap more tightly.
• Insert the flat plug of the nystagmus spectacle either into the DEHAG battery container type 504 or into the DEHAG
power supply type 506 (both not included).
• Plug the DEHAG power supply type 506 into a 220V power supply. The DEHAG battery case is powered by three
1.5 volt C LR14/AM-2 size batteries (baby cells).
Processing instructions
Store your nystagmus spectacle in a closed place where they are protected from dust and dirt to ensure their hygienic
conditions.
All surfaces of the appliance are not sensitive to conventional, mild, alcohol-free cleaners. A soft cloth or absorbent
paper should be used to apply cleaning liquids, in order to avoid scratching the surface and to dose and spread out the
liquid better. Incorrect or incomplete cleaning may jeopardize the patient or medical staff!
Restriction regarding reprocessing
The end of the product service life is usually determined by wear and damage caused by use.
Place of use
Remove surface soiling with a soft disposable cloth.
Maintenance
Please sort damaged parts and have them repaired.
Cleaning / Disinfection: automatically
• An automatic cleaning and disinfection is not approved for the device.
• Do not disinfect by spray or soak!
ENGLISH
