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SeedNet® User’s Manual
Computer Interface
• Blue for Freeze: The intensity of the freezing is represented by the darkness of the blue
color. From dark blue for 100% to very light blue for 20%.
• Red for Thaw.
• Gray for OFF
A new colored bar is added to the row every minute. The intensity of freezing can be preset
or changed during operation using the Up/Down arrows. The color of the bar will change
during the next minute period.
Figure 6-18 Choosing CM for a group of needles
6.3.6 TEMPERATURE CONTROL MODE
The basic concept behind the Temperature Control mode is to use the external Temperature
Sensors as a control device for the cryosurgical freezing.
The surgeon can define specific external Temperature Sensors (TS) to be used as the Control
Device (CD) for one or more group of needles.
The Temperature Sensors should be inserted into the tissue in locations where the surgeon is
interested in controlling the temperature; for example to verify low temperature or to verify
high temperature.
In order to use the TS as a control device, the arrow next to the % sign has to be pressed and
then the TS, to be used as a CD, should be chosen (see figure 6-18).
The target temperature for the group should be set in the window to left of the Freeze button,
using the arrows or by typing.
After pressing the Freeze button, the specific group will freeze continuously as long as the
temperature measured by the CD is higher then the target temperature.
The target temperature can be changed during the freezing.
Shifting from the Temperature Control mode to the Intensity Control mode can be done
during the freezing.
If the machine does not detect a signal from a specific TS during the operation, due to
failure, disconnection, or any other reason, the machine will terminate the gas flow to the
groups to which the TS is related and will mark the specific groups’ CD button.
Galil Medical Proprietary Information
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