14
70375-EN Rev B
Treating Patients
B
EFORE TREATING A PATIENT
:
•
Ensure that the eye safety filter is properly installed.
•
Ensure that the laser components and delivery device(s) are properly connected.
•
Post the laser warning sign outside the treatment room door.
NOTE
:
Refer to Chapter 6, “Safety and Compliance,” and your delivery device manual(s) for important information about
laser safety eyewear and eye safety filters.
T
O TREAT A PATIENT
:
1.
Turn the TxCell Control Box on using the service power switch on the back of the Control Box.
2.
Turn on the laser.
3.
Reset the counter.
4.
Position the patient.
5.
Select a laser contact lens appropriate for the treatment.
Use caution when operating with a multiple
mirror laser contact lens in multi-spot mode. Do not overfill the mirror with the pattern and ensure that
you have visualization of the complete pattern and the area to be treated prior to laser treatment.
6.
Ensure that all ancillary personnel in the treatment room are wearing the appropriate laser safety
eyewear.
7.
Select Treat mode.
8.
Ensure use of lowest aiming beam intensity possible.
9.
Position the aiming beam or Target Grid on the treatment site.
10.
Confirm focus and adjust the delivery device as applicable.
11.
To titrate laser power, perform single-spot test exposure prior to initiating treatment. If uncertain of
expected clinical response, always start with conservative settings and increase laser power and/or
duration setting in small steps.
a.
Please ensure repeat mode is off when titrating.
12.
Select final laser treatment parameters, including multi-spot pattern or repeat mode if desired.
a.
Please note that repeat mode is available only with single-spot mode. There is a 10 ms minimum
time interval with single-spot repeat mode.
b.
Please note that multi-spot pattern mode is available with 100
µ
m and larger spot sizes. There is a 2
ms minimum time interval between successive spots with multi-spot pattern mode.
13.
Press the footswitch to initiate treatment delivery. Release the footswitch at any time to immediately
terminate treatment laser emission, including any incomplete patterns.
a.
Please note that one actuation of the footswitch will deliver one multi-spot pattern when held for
the duration of the pattern.
T
O CONCLUDE PATIENT TREATMENT
:
1.
Select Standby mode.
2.
Record the number of exposures and any other treatment parameters.
3.
Turn off the laser system and remove the key. The TxCell Control Box service power switch can remain
on.
4.
Collect the safety eyewear.
5.
Remove the warning sign from the treatment room door, if appropriate.
6.
Disconnect the delivery device(s).
7.
If a contact lens was used, handle the lens according to the manufacturer’s instructions.
