User's Manual

5 • Anterior Segment Surgery Operating Modes
WHITESTAR SIGNATURE™ System Rx Only – Z370147 Rev. C 1008 5-12
Figure 5.11 – Duty Cycles for Variable WS
WHITESTAR
®
ICE Technology Pulse Shaping
The WHITESTAR
®
ICE Technology was the next micro-pulse advance in
phacoemulsification technology, which combined modulated ultrasonic power
(pulse shaping) with vacuum control through the application of the Chamber
Stabilization Environment (CASE).
This pulse shaping technology modified the standard “square” wave pulse, by
increasing the amplitude of the first millisecond of the On Time “kick”, and then
setting the remaining part of the On Time to the standard power setting. This is
repeated for each On Time period, resulting in increased control and efficiency in
phacoemulsification.