PULSAR Minimal Stress Installation and operating Manual
OPTIKON 2000
Cod. 111001EN 2012-02-16 Rev.J
7-3
PHACOEMULSIFICATION
The OPTIKON 2000 S.P.A. piezoelectric U/S handpiece contains a piezo transducer
designed to vibrate at a frequency of 40 KHz and end strokes of about 100µm.
The U/S handpiece piezo transducer comprises three distinct structures:
PIEZOELECTRIC CERAMIC ELEMENT, BODY and the surgical titanium alloy TIP.
The PIEZOELECTRIC CERAMIC ELEMENT converts the electric energy provided by
the OPTIKON 2000 S.P.A. PULSAR control console directly into a mechanical
vibratory motion of 40,000 cycles per second (40 KHz).
The BODY amplifies and mechanically transmits the motion of the piezoelectric
ceramic to the surgical tip.
The TIP vibrates longitudinally at high velocity thus enabling a fragmentation of
tissue very locally, around tip's contact surface. The OPTIKON 2000 S.P.A. titanium
alloy tips can be re-used and have a long life.
The internal energy loss processes of the piezo ceramic element leads to a warm up
of piezo transducer during high frequency vibration work, therefore the aspirated
fluid from the eye is also used for heat dissipating.
The Minimal Stress logo indicates an exclusive patented feature of our
phacoemulsifier, which leads to an extraordinary innovation in the phaco surgery.
This feature has been achieved by measuring the phaco tip movement (stroke) in
real time. This information is used by the microprocessor in order to stabilize the
stroke of the tip.
The main advantages of this system are:
• U/S Power preset indicates the effective tip stroke and corresponds to
microns of tip movement.
• Different phaco handpieces are equalized and compensated against the
typical degradation of efficiency due to aging.
• The amount of tip vibration is no longer affected by diversity in cataract
hardness as well as temperature fluctuations in the handpiece.
• Reduction of corneal burns is likely to be expected as the required average
energy and peak energy are lower compared to standard phacoemulsification.
• Reduction of bouncing of cataract fragments.
• Handpieces can be tested by the equipment in order to verify their
efficiency, avoiding to operate when below the acceptable limits.
Ultrasonic power can be delivered in Continuous or Pulsed mode.
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