Implantation Technique - Sophysa POLARIS SPV-SX Notice D'emploi

position that corresponds to the pressure selected for the
implantation by the surgeon, depending on the patient's
needs.
The double sterile packaging of each Polaris
includes a housing provided specially for a Polaris
adjustment kit, which makes it possible to adjust the sterile
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Polaris valve through the packaging.
PRECAUTION
Do not unpack or implant the valve without previously
adjusting it to the initial operating pressure defined by the
neurosurgeon.
WARNING
Do not use the adjustment kit in the operative field. As
the adjustment kit cannot be sterilized, using it during the
operation would cause a high risk of infection for the
patient.
9.2.1. Identification of the valve model (Step 1a)
Identify the reference and/or the pressure range for the
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Polaris valve to be adjusted: refer to the labeling on the
packaging.
F 7: D
IGURE ETAILS OF THE DOUBLE STERILE PACKAGING FOR A
P
OLARIS
NOTE
Reading of the setting position can also be performed
visually without using the Polaris
rotor is visible through the valve and the double sterile
packaging.
9.2.2. Choice of Locator reading area (Step 2b)
Se reporter au §4 - Principe de réglage de la valve Polaris
- Instrument de Localisation.
On the Locator, display the pressure range of the valve
model identified in step 1a.
9.2.3. Positioning the Locator (Step 3a)
Place the Locator in the slot provided for it on outside
of the packaging tray, centered above the valve, with the
green arrow on the Locator pointing in the direction of the
CSF flow as shown by the arrow on the valve.
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SPV
VALVE
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adjustment kit, as the
9.2.4. Positioning the Compass and Reading the
Pressure (Step 4a)
Refer to §4 – Principle of the Polaris
valve
Reading Instrument
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Place the Compass in the Locator using the guide pins:
align the lines on the Compass with the pressure values
engraved on the Locator.
On the Locator read the operating pressure shown by the
Compass needle.
NOTE
Reading of the setting position can also be performed
visually without using the Polaris
rotor is visible through the valve and the double sterile
packaging.
9.2.5. Positioning the Magnet and Adjusting the
Pressure (Step 5a)
Refer to §4 – Principle of the Polaris
Setting Instrument.
Remove the Compass, align the line on the Magnet with
the pressure read in Step 4b, and insert the Magnet in the
Locator aligning the marker on the Magnet with the initial
setting position.
Hold the Locator with one hand.
Slide the Magnet, back and forth quickly along the axis
of the initial position of the pressure setting, to unlock the
valve rotor, then replace it correctly in the center of the
Locator.
Turn the Magnet to the position chosen as the operating
pressure for the valve which is to be implanted.
Remove the Magnet vertically from the Locator to ensure
effective re-locking of the valve rotor at the new operating
pressure position.
9.2.6. Verification of the pressure setting (Step 6a)
Refer to §4 - Principle of the Polaris
Reading Instrument.
The verification is performed using the Compass in
accordance with the procedure described in Step 4a.
9.2.7. Recording the operating pressure chosen
for the implantation (Step 7a)
Note the pressure value read in Step 6a on the Polaris
Patient Identification Card (PC-SPV).

9.3. IMPLANTATION TECHNIQUE

Implantation of a Polaris
current aseptic neurosurgical practices.
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The implantation of a shunt including a Polaris
be performed in several ways.
The surgeon will choose the technique depending upon his
experience and the clinical status of the patient.
The final implantation of the device must satisfy the
conditions for optimal drainage of the CSF.
The surgeon must select the implantation area taking into
account the fact that the valve is a potential source of
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Valve Adjustment-
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adjustment kit, as the
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Valve Adjustment-
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Valve Adjustment-
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valve must take account of
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valve may
ENGLISH – 11
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