Possible Shunt Components - MIETHKE proGAV 2.0 Instrucciones De Manejo

Fig. 17: Radiograph pressure setting 13 cmH
The following opening pressure ranges for the
gravitational unit are possible, the pressure ran-
ge selected can be checked postoperatively on
X-ray image:
Opening pressure
for vertical posture
10 cmH O
2
15 cmH O
2
20 cmH O
2
25 cmH O
2
30 cmH O
2
35 cmH O
2
coding ring
a)
Fig. 18: X-ray image of the gravitational unit
a) large, 1 ring = 20 cmH
b) small, no ring = 10 cmH
O
2
Coding of
gravitational unit
small, no ring
large, no ring
large, 1 ring
large, 2 rings
large, 3 rings
large, 4 rings
b)
O,
2
O
2
INSTrUcTIONS fOr USe |

PossIble shunt comPonents

The proGAV 2.0 is available in different configu-
rations. These shunt variations (for pediatric hy-
drocephalus and adult hydrocephalus) compri-
se of a variety of components, which are briefly
described below.
The borehole reservoir, the SPRunG RESER-
VOIR ore the McLAnAHAn RESERVOIR are
position ed in the cranial borehole. They allow
flushing and extraction of cSf, measurement
of the intraventricular pressure and the injec-
tion drugs. Their solid titanium base is highly
puncture-resistant.
with the SPRunG RESERVOIR it is possible to
flush cSf one-way in the direction of the val-
ve, this is achieved due to a non-return valve in
the bottom of the reservoir. with the aid of this
mechanism a flow in direction of the ventricular
catheter is avoided during the pumping proce-
dure. A control of the distal part of the shunt
system (the reservoir is hard to pump) and
whether the ventricular catheter is occluded
(the reservoir does not refill after pumping) can
be carried out.
The COntROL RESERVOIR or the (pedriatic)
prechamber are positioned on the craniu m. They
allow the measurement of intraventricular pressu-
re, injection of drugs, extraction of cSf and pal-
patory ventricle inspection.
Similarily to the SPRunG RESERVOIR the COn-
tROL RESERVOIR contains a non-return valve.
Its solid titanium base is highly puncture-resistant.
A puncture of the prechamber or the COntROL
RESERVOIR should be performed with a cannula
with a maximum diameter of 0,9 mm as perpen-
dicular to the reservoir surface as possible. 30
punctures are possible without any restrictions.
The opening pressure of the shunt system is not
increased by the implantation of the SPRunG
RESERVOIR or the COntROL RESERVOIR.
Warning note: Frequent pumping can lead
to overdrainage and thus to pressure con-
ditions outside the normal physiological
range. The patient should discuss the risks
(involved) with their surgeon.
GB
25