Laser Sys*Stim 540, Therapeutic Laser—
Rev.F_07/03/12
27
7
Maintenance and Troubleshooting
7.1
Cleaning and disinfecting
Even though the patient treatment applicators do not contact open wounds or broken skin it is still
possible for them to carry infections by the mere fact that they contact bare skin.
The applicators should be thoroughly cleaned after a treatment session with one patient is completed
prior to a new session beginning with another patient. The treatment applicators are not suitable for
autoclaving.
There is no requirement for routine cleaning of the Laser Sys*Stim 540 other than to ensure that the
unit is kept free of any spillage of liquids, gels, etc, particularly on the front of the unit and near the
mains inlet connector on the back of the unit. If this occurs, power down the unit, unplug it from the
wall outlet, and remove the spillage as soon as possible.
The treatment applicators should be kept free from any build up of material particularly on the glass
cover protecting the laser diode in the tip of the applicator. Regular cleaning with a damp cloth
soaked in a mixture of mild soap and water is recommended. Note: The Laser or Cluster Applicator
must be disconnected from the front panel socket when cleaning. This is a precaution to ensure the
laser applicator has no power and therefore cannot activate while looking at the cover glass.
If there are concerns about cross infection the applicator's surface which contacts the patient can be
wiped with a surface disinfectant. Care should be taken not to contact the grey plastic parts of the
treatment applicator with the disinfectant.Turn off the unit and unplug it from the main power supply
before cleaning or disinfecting it. Clean and disinfect the unit and its accessories (except for the felt
spacers) with commerciaIly available surface disinfectants.
To prevent damage to the surface materials of the Laser Sys*Stim 540, use only surface disinfectants
based on agents like aldehydes, alcohol or ammonium compounds that are suitable for wipe and
spray disinfection. Use them according to their instructions for use and duration of action.
To prevent possible material damage, avoid the use of products based on halogen-splitting
compounds, strong organic acids and oxygen-splitting compounds, solvents, benzene and similar
agents.
ATTENTION:
Do not allow any liquids to penetrate the unit or its accessories while cleaning and disinfecting. Dry all
sockets and connectors that have become wet before any further use!
7.2 Routine
Maintenance
1. If there appears to be physical damage to the machine, either from damage in transit or from
mishandling, it should not be used. Use should only commence or continue after it has been
thoroughly checked by an appropriately qualified technician to ensure that its functional and
safety performance has not been impaired.
2. Standard medical electrical safety checks should be performed annually by qualified biomedical
engineers or technicians trained to perform these procedures.
3. Inspect cables and associated connectors for damage.
7.3 Changing Fuses
External mains fuses are installed to protect the Laser Sys*Stim 540 from damage if certain internal
faults occur. Fuses do age and sometimes fail unnecessarily. Fuse failure should not, however, be
interpreted as a fault in the fuse only. If the mains fuses fail, the Laser Sys*Stim 540 should be
inspected by a qualified technician. Ensure that mains fuses are replaced with the same type and
rating as stated on the equipment identification label.
