29.05.09
VV016011E
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buttons, PHACO1, PHACO 2, PHACO3, PULSE, IRR, AUX,
VOICE and RESET – will remain blocked.
8.3.3
Phaco pulse and phaco burst
The pulse or burst function is switched on and off by pressing
the PULSE button or by moving the pedal to the left (if linear
phaco with PULSMODE is selected in ParaProg). Changing
between pulse and burst is done by repeated pressing of the
PULSE button.
Pulse
In the pulse function, phaco output is given in short pulses.
The number of pulses per second (
pulse frequency
) can be
selected between 0.5 and 40. To do this, press the PULSE
button and hold it down while you set the chosen values
using the arrow buttons beneath the value display. The pulse
frequency as selected by each surgeon remains stored, even
when the unit is switched off.
The cooling factor
can be specified while keeping the
PULSE button from 10% to 99% in 1% increments or in 10%
increments.
Burst
In the burst function, phaco output is given in short pulses
(bursts). The number of bursts per second is (
frequency
)
proportionally controlled by the pedal, from a single burst
(0.5Hz) up to continuous power delivery To do this, hold the
PULSE button down and set MAX PEDAL accordingly. The
phaco power always corresponds to the value selected with
the arrow key on the panel (1% to 100%), irrespective of
pedal position.
NOTE: If Phaco PANEL has been selected in the ParaProg, only one single
burst with the selected values is delivered in pedal position 3. The next burst
will be released only after the pedal has been brought back to position 2.
The burst duration
(duration of phaco power delivery) can be selected from
10ms to 500ms. To do this, press the PULSE button and hold
it down while you set the chosen value using the arrow
buttons beneath the value display. The burst length as
selected by each surgeon remains stored, even after the unit
is switched off.
NOTE: If PULSMODE was selected in ParaProg (pulse or burst switched on by
moving the pedal horizontally), pulse or burst will not be stored as a part of
PHACO1, 2 and 3. Otherwise, pulse will also be stored.
8.3.4
CMP Phaco
Press the CMP button to switch the CMP function on and off.
In the CMP function phaco power is delivered in short pulses.
The pulse frequency and the cooling factor can be selected
as desired within the limits set by the machine. To do so hold
the CMP button down and select the values with the arrow
keys. Independent of the values selected the phaco tip will
remain cool, even at 100% phaco power. This allows
operations without infusion sleeve. The phaco power is
always proportional to the pedal deflection.
Note: CMP1, 2, 3 have their own memories. By holding down the
corresponding button phaco 1, 2, 3 (see 8.1) for a short period, all settings will
be memorized.
8.3.5
Occlusion Mode Phaco
In occlusion mode, the unit operates until a freely-definable
vacuum limit is reached (occlusion vacuum) with the values
stored in PHACO1, PHACO2 or PHACO3 (or CMP1, CMP2,
CMP3) and above with the values of the respective OCC-M
memory. When the occlusion vacuum is reached, the unit
switches to the OCC-M values for flow (venturi), phaco output
and pulse. Example:
PHACO1
OCC-M 1
Vacuum
200mmHg a)
150mmHG b)
Flow
15ml/min
25ml/min
Power
70%
50%
Pulse or burst
Off
On
a)
Maximum vacuum, is never exceeded
b)
Occlusion vacuum. When this has been reached, the unit switches to the
OCC-M values.
Must be lower than vacuum a).
Switching on the OCC-M
To switch on and off, press the OCC-M button lightly. The
OCC-M is ready when the LED lights up. As soon as the
occlusion vacuum is reached in the course of the operation,
the LED begins to flash rapidly. The OCC-M values are now
active.
Storing the OCC-M values
First store the multimode values for PHACO1, PHACO2 and
PHACO 3 (or CMP1, CMP2, CMP3) as described in Section
8.1. Then call up the memory to be programmed.
Fully depress the OCC-M button. The LED will flash slowly.
The displays will show the values for the OCC-M.
Using the arrow buttons, firstly set the chosen value for the
occlusion vacuum. It must be lower than the vacuum in the
respective multimode memory. Higher values will not be
accepted.
Next, set the values for flow (venturi speed) and phaco
power, and switch PULSE or BURST on or off (not possible
in CMP).
Hold down the PHACO 1 (or PHACO2 or PHACO3) button as
described in 8.1. When "VALUES SET" appears, fully
depress the OCC-M button again. The LED extinguishes.
Repeat the procedure for the other multimode memories
(PHACO2, 3 etc.).
NOTE: The OCC-M function can only be switched on and off when the pedal is
in the zero position or position 1.
8.3.6
Proportional override for Phaco
To override the vacuum limit value in pedal position 3
through moving to the right, a higher limit value up to
600 mmHG can be inputted using the OOC-M button.
First save the multimode values for PHACO1, PHACO2
and PHACO3 (or CMP1, CMP2, CMP3) as described
in chapter 8.1.
Then, in the program PHACO1, PHACO2, or PHACO3
(possible individually), press hard on the OCC-M button
and change OCCM-SET to OVERRIDE using the arrow
button beneath the IOP display. Then, using the arrow
button beneath the vacuum display, set the upper limit
value. It should be higher than the PHACO limit value.
Then end the setting procedure by pressing hard on
the OCC-M button. That fact that override is active is
indicated by the blinking of the word OVERRIDE and