Selecting The Appropriate Shunt; Using The Instruments - MIETHKE proGAV 2.0 Instrucciones De Manejo

selectIng the aPProPrIate shunt

The proGAV 2.0 is a position-dependent shunt,
meaning the opening pressure changes depen-
ding on the position of the patient.
To choose the suitable proGAV 2.0 for an indi-
vidual patient, one opening pressure is set for
the horizontal position (patient lying down), and
one for the vertical position (patient standing
upright).
Horizontal position
The opening pressure for the horizontal position
is defined by the adjustable dP-unit. The pres-
sure level should be choosen according to the
clinical situation and indication. The unit can be
adjusted to a pressure setting between 0 cmh
and 20 cmh O. The valve is preset to 5 cmh
2
Vertical position
The opening pressure of the proGAV 2.0 for
the vertical position is calculated by the sum
of the opening pressure of both the adjustable
unit and of the gravitational unit. The selection
of the gravitational unit depends on the activity
and the abdominal pressure (adiposity).

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.
O
2
O.
Fig. 7: proGAV 2.0 Compass
2
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. 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:
INSTrUcTIONS fOr USe |
a) b)
O, but it must
2
GB
O.
2
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