Checking Yag Aiming Beam Accuracy - Quantel Medical OPTIMIS FUSION User Manual

User manual
IV - Maintenance

2.2.3 CHECKING YAG AIMING BEAM ACCURACY

WARNING
Wearing appropriate safety glasses is required for all persons present when the laser is in use.
Ensure there is no refelective surfce behind the target.
The aiming and treatment beam (1064nm) coincidence should be checked on a regular basis: the following
procedure should be carried out at least every
Required material:
Photographic paper (Kodak linagraph direct printer)
Alignment target / focusing bar
Checking procedure:
1. Attach a piece of photographic paper on the alignment target / focusing bar (See Figure 1)
2. Switch ON the main switch located at the back of the OPTIMIS FUSION unit. The slit lamp is automatically
turned "ON" and illuminates the target paper.
3. Turn the keyswitch to the YAG position and wait for the OPTIMIS FUSION treatment screen to be displayed
(the laser is in STANDBY status by default).
4. Swing the illumination tower on the side so that it does not obstruct the aiming beams.
5. Adjust the eyepieces to accommodate the user's eyes.
6. View the target through the binocular (with the magnification changer set to x16).
7. Adjust the slit lamp position so that the aiming beams converge to form one spot on the paper attached to the
target. The aiming spot should be centered in the field of view and in the center of the illumination aperture.
Lock the slit lamp in this position (See Figure 2)
XL_FUSION_ME_AN_160314
three months or as considered necessary by the user.
Figure 1: Piece of photographic paper in position
Figure 2: Aiming beams in focus
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