Using The Instruments - MIETHKE proGAV 2.0 Mode D'emploi

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GB | INSTRUCTIONS FOR USE

USING THE INSTRUMENTS

With the proGAV 2.0 Tool Set the selected
opening pressure of the proGAV 2.0 can be
determined, varied and controlled.
The proGAV 2.0 Compass is used to locate
and verify the DP adjustable unit.
Fig. 7: proGAV 2.0 Compass
a) open b) closed
The proGAV 2.0 Adjustment Tool is used for
adjusting the valve opening pressure of the
proGAV 2.0 from 0 to 20 cmH
Fig. 8: proGAV 2.0 Adjustment Tool
Each proGAV 2.0 is calibrated under strict
quality control procedures. The presetting of
the adjustable DP-unit is 5 cmH
be checked before implantation. The setting is
changed in the following steps:
1. Locating the valve
If the instrument is opened a template is visi-
ble (fig. 10). Then the valve can be located on
the patient's head with the forefinger.
18
O.
2
O, but it must
2
Fig. 9: Locating the valve
with the proGAV 2.0 Compass
The proGAV 2.0 Compass must be positioned
centrally on the valve. The markings on the
instrument "proximal" and "distal" show the
flow direction.
2. Verifying the opening pressure
When the compass is closed, the pressure
setting is indicated automatically (fig. 11).
Fig. 10: Verifying the pressure setting
with the proGAV 2.0 Compass
CAUTION
Placing the proGAV 2.0 Compass in a non-
central position on the valve can lead to erro-
neous readings!
The proGAV 2.0 Compass is sensitive to exter-
nal magnetic fields. To exclude undesirable
interactions the proGAV 2.0 Adjustment Tool
should not be in the immediate vicinity of the
proGAV 2.0 Compass while determining the
opening pressure. We recommend a distance
of about 30 cm.
proGAV 2.0

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