Gima 31528, Manual

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11
ENGLISH
SIGMA OPHTALMOSCOPE
Range of applications
- The Sigma ophthalmoscope is designed for examination of the eye.
- During examination, hold the instrument with your index finger on the lens wheel (a) fig.8. you can also operate the
aperture wheel (c) in this way.
- Window (b) shows the selected lens value. Minus lenses are shown red, plus lenses black.
Do not use the equipment in case it is damaged. Apply to your retailer.
Operating Instruction
Attach the ophthalmoscope head to the handle and turn on the device for examination, turn the wheel (a) fig.8, clock-
wise or counterclockwise to select the desired lens. The power of the selected lens is visible through window (b).
Sigma ophthalmoscope is equipped with a set of 5 different aperture, which can be selected by turning the wheel (c).
Changing the lamp
Unscrew the instrument from the handle and pull the lamp (d) fig.8, downwards. Wipe the new lamp glass clean and
insert it so that the locating pin (e) fits the slit.
Allow lamp to cool down for some time before replacing it.
Cleaning
The housing can be wiped clean with a cloth moistened with alcohol. Glass surfaces can be cleaned with a cotton
wool bud in the same way.
Applicable Standards
ISO 15004-1 (Ophthalmic instruments - Fundamental requirements and test methods).
The performance of this instrument can only be guaranteed if genuine Medical Devices lamps and alkaline
batteries are used.
Warnings and Cautions
The light emitted from the ophthalmoscope is potentially hazardous.
The longer the duration of exposure, the greater the risk of ocular damage. Exposure to light from this instrument,
when operated at maximum intensity, will exceed the safety guideline after 13 minutes when Iit with a LED lamp (blue
base). Exposure times are cumulative for a 24-hour period.
• 333 seconds (5 min 33 sec) in case of a free eye
• 227 seconds (3 min 47sec) in case of a fixed eye
When using Halogen illumination, no acute optical radiation hazards are identified. However, Medical De-
vices recommends limiting the intensity of the light directed into the patient’s eye to the minimum level that
is necessary for diagnosis. Infants, persons with aphasia, and persons with diseased eyes are at a greater
risk. The risk is also increased if the examined person has had any exposure with the same instrument or
any other ophthalmic instrument using a visible light source within the previous 24 hours. This will apply
particularly if the eye has had exposure to retinal photography. The intended use of this device is for routine
ophthalmic exams on the order of typically less than 60 seconds per eye. Although there is a benefit versus
risk factor in any medical procedure, these more complicated exams should not exceed a three minute
exam time in 24 hours. Significant use of this device beyond its intended use is not recommended; it may
cause harm to the eyes.
Feature
• Made from impact resistant re-enforced plastic.
• Enhanced Xenon/Halogen super bright light.
• Easy replacement of lamp.
• 5 different apertures.