nContact CS-3000 Manual Del Usuario página 10

CS-3000 RF Generator Unit Operator Manual
Figure 10. RF Generator Front Panel Display Entering "Power Control
Mode"
From Standby, when the user presses the "MODE" button, the generator passes a
self-test. If the self-diagnostic tests don't detect an Error code, the generator then
enters POWER CONTROL MODE (in this mode, the RF ON/OFF LED is blinking).
As displayed in the drawing above, the impedance measurement is Open Circuit (OC)
because the device and the indifferent electrode is not connected. The generator
Power is set to 4 W and Time is set to 0.
Figure 11. RF Generator Front Panel Display in "Power Control \
Ready State"
From POWER CONTROL MODE the generator enters a Ready State.
Note: An indifferent electrode and coagulation device are connected to the
generator and placed on the patient.
"RF ON/OFF" LED is not activated, but will be blinking.
When the user attaches a device, the generator detects device type and presets
information.
Refer to the Instructions for Use of the coagulation devices for the pre-set power and
time.
Figure 12. Sample Display in "RF ON" State with a Device Attached
POWER CONTROL \ RF ON State for Devices
In this mode, the user presses "RF ON/OFF" to activate and transmit RF energy to the
coagulation device. The "RF ON/OFF" LED is activated. Power is preset for the
coagulation devices. The cycle Time (e.g. 56 s) is displayed in lower right corner and
counts up to the set value.
Impedance is measured and the value displayed in the lower left (e.g. 105 Ω).
Impedance is graphed (in the right "Test" bar) against the baseline value measured at
initiation of RF. The baseline value is also displayed above the graph and in the left
"Baseline" bar.
The percent change in impedance from baseline is displayed on the right (e.g. ↓25%)
with an arrow (↑ or↓) to indicate whether the change in value was an increase or a
decrease.
During RF application, an audible tone will sound every second for a 200 millisecond
pulse.
nContact Surgical, Inc.
All manuals and user guides at all-guides.com
Figure 13. Front Panel Display in "RF ON" with Resistivity Active
POWER CONTROL \ RF ON with Resistivity Active, Device & Indifferent, Dispersive
Electrode Attached
"RF ON/OFF" is transmitted to the device and the "RF ON/OFF" LED is activated.
Measured impedance is displayed (120) but not graphed.
Resistivity is measured and graphed ("Test") against the "Baseline" value (300 Ω/cm).
Percent change in resistivity is displayed on the right (e.g. ↑ 20%)
Power transmitted at 50 W
Time (33 sec) counts up to set point
Figure 14. RF Generator Cycle Complete, Returns to Power Control
"Ready" State
When the RF cycle is complete upon reaching preset time, generator returns to the POWER
CONTROL MODE Ready State.
"RF ON/OFF" terminates when Time equals set point, and LED turns off.
"Time Limit" message is displayed in the upper right.
Parameters display for 3 seconds, then reset to preset values.
Final Impedance is measured (80 Ω) and displayed in lower left and is graphed against the
"baseline" value (100 Ω).
Final Percent change in impedance is displayed (↓ 20%).
Final Power transmitted shown (50W).
Time at Termination of RF energy is displayed (90 s).
LBL-2123 Rev. E
Page 10/ 79