MIETHKE proGAV Instrucciones De Manejo página 29

proGAV ® Tools
3. Adjustment process
WARNING
When adjusting the adjustable differential
pressure unit, care must be taken that the
opening pressure is changed by a maximum
of 8 cmH O per adjustment process.
2
Example: The opening pressure is to be
changed from 3 to 18 cmH
one adjustment process, the rotor will rotate
anti-clockwise (short route) and stop at the
setting 0 cmH O (Fig. 10a).
2
The correct method is an adjustment in two
stages: Adjustment from 3 to 11 cmH
from 11 to 18 cmH
wise (Fig. 10b).
Fig. 10: Rotor rotation during adjustment
a) wrong direction
b) correct direction
NOTE
If the implantation site is unfavourable or
the skin above the valve is too thick, the
adjustable differential pressure unit may no
longer be able to be adjusted. The valve
then works with unchanged pressure levels.
The patient should be made aware of this
risk.
NOTE
Swelling of the skin can make adjustment
difficult for a few days after the operation.
During preoperative adjustment through
the sterile packaging, the Adjustment Tool
is only placed on the valve. Do not press
the push-button. Excessive pressure with
the Adjustment Tool can damage the valve
housing and impair its function.
O. If there is only
2
O and
2
O. The rotor rotates clock-
2
3a. Adjustment using the proGAV
Adjustment Tool
WARNING
When pressing the release button, make sure
that the Adjustment Tool is not removed from
the valve.
NOTE
For sensitive patients, look into whether
local anaesthetic should be used during the
adjustment process (e.g. via plasters) pro-
vided there is no contraindication.
Adjustment Tool
Fig. 11: Setting the desired pressure level on the Adjust-
ment Tool
Adjustment Tool
Fig. 12: Placing the Adjustment Tool
EN