LightLas 532 – Operator's Manual Rev. No 01 Page 31 of 115
can be set from 0.01 to 3.0s by using the press action switches located directly below
the Repeat Interval display. If the duration is adjusted beyond 3.0 seconds, the
“Pulse Duration” display will show “CW” and the laser output will be continuous for
as long as the foot switch is pressed down. If the interval is adjusted beyond 3.0
seconds, the “Repeat Interval” display will show “One” and the foot switch will need
to be pressed every time the doctor wishes to fire the laser.
By default setting or when the laser is powered on for the first time, the pulse
duration is 0.02 seconds and the repeat interval is set to “One”. The laser output
power is set to 0mW. These initial values can be changed by selecting the desired
settings and by using the saving function button on the screen and key in the
customized name. You may retrieve this setting by reopen the file folder.
Inside the Laser System there is a shutter module that completely blocks the beam
path at all times except when the system is in the ‘Treat’ mode and footswitch is
activated. The microprocessor constantly monitors the electronic sensors position
and their integrity of the shutter at all times. Whenever the system boots up, it will
check for the shutter position to validate if the shutter is engaged and functioned.
The shutter remains closed until doctor initialized the ‘Treat’ mode. This ensures that
the patient is protected in the case of a misfire. When the footswitch is pressed the
microprocessor will carry out various checks on the status of the laser system
including the correct position of the shutter. After the microprocessor finishes the
system checking, then the shutter will await to be opened or activated. If this is OK
then the Laser Diode will be turned on for the selected pulse duration. There is a
closed loop control system to ensure a stable output pulse. The footswitch must be
released in order for next requested to be operated again. The position of the
shutter will continuously be checked during all operating modes.
A sum of the total delivered Laser pulses is shown on the LCD Control panel located
near the bottom right. A reset button switch is located next to the display button.
You may clear the setting by pressing this button will reset the value.
In the case of an emergency, the Red Emergency Switch can be pushed in and locked
down to cut off all power. Normally power can be turned off by using the key switch.
In order to prevent unauthorized persons from operating the system, the key should
not be left in the keyhole when the Laser System is not in use.
The software shutdown is processed through a push button on the LCD panel
located near the left bottom of screen (refer to figure 4.3). The system will remain
operation unless user’s requested.
The user/doctor is expected to be trained and have knowledge in the intended use
and application of the Green laser for performing any surgery. In addition, it would
be expected to use the laser system in a clean and controlled environment. When
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