User's Manual

WHITESTAR SIGNATURE PRO System
5 • Program Settings
RX Only – NGP Z370500 Rev. B 1116
5-26
Venting an Occlusion
When there is a blockage or an occlusion to the aspiration port by some tissue or
other material, the vacuum pressure builds up. The aspiration flow system vents to
the bottle when you release the foot pedal. Another choice is that you can release
the foot pedal to position 1 and that causes the aspiration system fluid to vent using
pump rotation. This is used with the OPO70 FUSION Pack. The OPO71 FUSION
Dual Pump Pack uses a pump mechanism.
These methods release the material at the aspiration port and gives you full control
if the tip accidentally grabs the capsule or iris. The internal fluidic system maintains
the desired vacuum level when you hold the foot pedal at a constant position. The
two adjustments associated with aspiration flow are Max Vac and Max Flow.
CASE Mode
CASE maintains a stable chamber by detecting an impending occlusion break, and
reducing the vacuum before occlusion surge can occur. When the system
detects
the
occlusion, the system waits long enough to allow you to grasp the particle
firmly, and then reduces the vacuum to a lower level that allows the occlusion to
clear safely. When you clear the occlusion, the vacuum returns to the previous
vacuum level.
To access CASE settings:
1. Press the Settings button.
2. On the Settings screen, press the FUSION button ( ).
Figure 5.19 – FUSION Settings Screen