Hologic Nova Sure 08 RF Mode D'emploi Et Manuel page 19

ENGLISH
NOTE: If a system fault occurs during the POST, toggle off the
power at the power input module and repeat the POST. If a
system fault occurs a second time, remove the RF controller
from service and contact Hologic customer service.
CAUTION: Do not attempt to repair the controller if problems
are suspected. Follow the troubleshooting guide in this
manual. If problems persist, call Hologic Technical Support
for instructions.
Sterile NovaSure disposable device: No maintenance is necessary.
Single-patient use only. Do not reuse or re-sterilize the NovaSure
disposable device.
NovaSure RF Controller LED Descriptions
The following is a description of the alert LEDs on the
NovaSure RF controller.
CAVITY ASSESSMENT LED: illuminates in four modes:
1. Flashes red in conjunction with an audible tone at a rate of
once per second for the first 10 seconds when the system is
purging air out of the disposable device. After 10 seconds, the LED
and audible tone will cease, although CO
of the vacuum feedback line.
2. Flashes green in conjunction with an audible tone at a rate of
once per second when the system is performing a cavity integrity
assessment.
3. Steady green light appears when the cavity integrity
assessment has passed and the system can deliver RF energy.
Power cannot be applied to the disposable device until the CAVITY
ASSESSMENT LED is a steady green.
4. Steady red lights and an audible tone at a rate of four times
per second occur when the cavity integrity assessment has failed.
The CIA test may be tried again.
ENABLE LED: illuminates amber when the user presses the
ENABLE button. Acts as a safety so that the NovaSure disposable
device will not accidentally activate when the foot switch is
touched. The ENABLE LED will not illuminate when the ARRAY
POSITION LED is on.
RF ON LED: illuminates blue when the ablation is proceeding
(the foot switch has been depressed to activate the
NovaSure RF controller with the NovaSure disposable device array
in place in the uterus).
PROCEDURE COMPLETE LED: illuminates when the tissue impedance
reaches 50 ohms and the ablation procedure runs a minimum of
30 seconds.
ARRAY POSITION LED: illuminates red when one pole of the electrode
array may be in contact with another. This LED should be illuminated
when the array is not fully deployed. The ENABLE LED cannot be toggled
on, nor can power be delivered to the array when the ARRAY POSITION
LED is illuminated.
VACUUM LED: illuminates in two conditions:
will continue to flow out
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1. Flashes red accompanied by an audible tone while the system is
stabilizing the vacuum level for up to 10 seconds before energy
delivery commences (only for Model 09 controllers with a vacuum
pre-check function).
2. Illuminates red when the vacuum relief valve is stuck in the closed
position, when a blockage is detected in the disposable device or the
connection tubing or when the system has a leak. Such a situation
might be created by:
an over-dilated cervix with poor contact between the cervical collar
•
and the external os;
a poor attachment of the desiccant tube to the suction tubing;
•
an obstruction in the disposable device tubing; or
•
an obstruction in the disposable device.
•
SYSTEM FAULT LED: illuminates red if the system faults or if there is a
self-diagnostic check failure with the system clock or power delivery. If
this event occurs, terminate the procedure immediately and contact an
authorized Hologic service representative for instructions.
Troubleshooting Most Common Alarms
CAVITY ASSESSMENT LED illuminated red
If the CAVITY ASSESSMENT LED is steady red, the cavity integrity
assessment has failed. If the cavity integrity assessment fails, then the
CAVITY ASSESSMENT LED on the NovaSure RF controller will flash red,
and a rapid audible tone will sound at a rate of four times per second.
The CIA test may be tried again.
If a perforation is suspected, the procedure should be terminated
immediately.
If the cavity integrity assessment fails, press the foot switch to stop the
sound. The cause of the cavity integrity assessment failure is the inability
to pressurize the cavity. It may be caused by:
1. Device leak: ensure that the suction line desiccant filter has been
installed. Check all tubing connections to ensure that they are tightly
connected.
2. Leak at the external os of the cervix: Look for visible bubbles or a
"hissing" sound at the external os of the cervix.
Use the tab on the cervical collar to advance the cervical collar
towards the external os of the cervix to ensure there is a tight seal.
Test again. If the test fails again, use a second tenaculum to grasp
the cervix around the sheath of the NovaSure disposable device. Test
again.
3. Uterine perforation: If a uterine perforation is suspected, the
procedure should be terminated immediately.
NOTE: CO leakage may occur at the external cervical os due to the
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presence of an over-dilated cervix. Visible bubbles or the "hissing"
sound of escaping gas may accompany CO
these conditions.
leakage under either of
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