User's Manual

WHITESTAR SIGNATURE PRO System
5 • Program Settings
RX Only – NGP Z370500 Rev. B 1116
5-27
3. On the FUSION screen, press the On button to turn CASE mode on.
Note: If the Venturi pump option is on, you cannot access the FUSION
Fluidics screen. There is no Occlusion mode phaco or CASE mode
with Venturi.
4. The FUSION screen shows the CASE settings as a graph. Use the up and
down arrows at the bottom of the screen to adjust the:
• Upper Threshold (Up) – This is the maximum threshold vacuum setting.
You define the amount for the upper threshold by the up time threshold
setting.
• CASE Vacuum (CASE) – This is the optimum occlusion vacuum setting
• Lower Threshold (Down) – After the occlusion clears, the vacuum level
drops to the lower vacuum threshold setting to allow the occlusion to safely
clear, and then gradually returns to the previous levels.
Note: You cannot set the nonzero start value higher than the CASE up
threshold or the CASE vacuum setting. You cannot set the nonzero
start value higher than the CASE down threshold. When the current
vacuum level reaches the CASE threshold, the system uses the CASE
settings. When the current vacuum level goes below the CASE down
threshold, the system uses the nonzero start settings as long as the
system is also out of CASE mode.
• Up Time – Use the up and down arrows to change the up time threshold.
The up time threshold is the maximum time that the system maintains the
maximum threshold vacuum.
5. Press Finished to close the screen
CASE One Touch
To simplify the programming of the CASE function, you only need to define the
basic CASE parameters once. You can adjust the CASE function quickly and easily
from the CASE One Touch settings on the surgical screen. Use these controls to
change the CASE functionality for greater efficiency (up arrow) or more control
(down arrow) to suit any particular combination of cataract density, surgical
technique, or personal preference.
When CASE is On, use the One Touch buttons to adjust the CASE parameters.
Figure 5.20 – CASE One Touch