Using The Instruments - MIETHKE proGAV 2.0 Mode D'emploi

proGAV 2.0

USING THE INSTRUMENTS

With the proGAV 2.0 Tool Set the selected ope-
ning pressure of the proGAV 2.0 can be deter-
mined, varied and controlled.
The proGAV 2.0 Compass is used to locate and
verify the DP adjustable unit.
a)
Fig. 8: proGAV 2.0 Compass
a) open b) closed
The proGAV 2.0 Adjustment Tool is used
for adjusting the valve opening pressu-
re of the proGAV 2.0 from 0 to 20 cmH
Fig. 9: 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 visible
(fig. 10). Then the valve can be located on the
patient's head with the forefinger.
Fig. 10: 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 in-
strument "proximal" and "distal" show the flow
b)
direction.
2. Verifying the opening pressure
When the compass is closed, the pressure set-
ting is indicated automatically (fig. 11).
O.
2
Fig. 11: Verifying the pressure setting with the
proGAV 2.0 Compass
O, but it must
2
Caution: Placing the proGAV 2.0 Compass in
a non-central position on the valve can lead
to erroneous readings!
The proGAV 2.0 Compass is sensitive to ex-
ternal 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.
3. Adjusting the opening pressure
The proGAV 2.0 Adjustment Tool must be po-
sitioned centrally on the valve. For a correct
placement the valve should be palpated with
the forefinger through the opening in the middle
INSTRUCTIONS FOR USE |
GB
19