4.
Turn the Magnet until it reaches the position chosen as
the new valve pressure.
NOTE
Clockwise rotation increases the pressure of the
valve, while counter-clockwise rotation reduces it.
5.
Remove the Magnet vertically to ensure effective re-
locking of the valve rotor in the selected position.
6.
Place the Magnet more than 50 cm from the valve.
8.2.7. Checking the pressure setting
Verification is performed using the Compass in accordance
with the procedure described previously.
CAUTION
Adjusting the pressure using an adjustment kit requires
experience. If you are not familiar with the kit, it is rec-
ommended that you check the pressure adjustment via
X-ray.
CAUTION
The pressure setting may not always be performed on
first attempt. Do not hesitate to repeat the adjustment
procedure several times from the beginning, starting
from the positioning of the Locator, in order to be sure
that the desired pressure setting is obtained.
In case of difficulties with adjustment, make sure that:
– the patient is positioned so that the valve is fully horizontal,
– the centering operations were properly carried out.
If adjustment difficulties persist, see Section 10. Solutions in
case of difficult adjustment (p. 16), which explains the
measures to be taken if adjustment is difficult.
8.2.8. Recording the new pressure
Note the pressure value read during verification on the Pa-
tient Identification Card (PC-SPV).
8.2.9. Post-adjustment monitoring
It is advisable to monitor the patient carefully for 24 hours
following any change in pressure setting.
9. Checking the performances of the
adjustment kit
Although, there is no maintenance to perform on the adjust-
ment kit, it is recommended to check it with each use. The
following checks will ensure that the adjustment kit is fully
functional, and that it is not damaged in any way.
Failure to perform the checks described in this section may
cause injuries to the patient, the major risk being overdrain-
age or underdrainage, which would require medical treat-
ment.
NOTE
The use of the adjustment kit has been tested over 5
years. However, the results of the following checks pre-
vail. They will indicate whether or not the adjustment kit
can still be used.
9.1. Visual checks
Perform the following visual checks:
– Make sure the markings and labels on the components of
the kit are complete and legible.
– Check that the Magnet handle moves properly to perform
backwards and forwards motions.
NOTE
Air bubbles may appear inside the Compass. They do
not have any impact on the product performances.
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