Integra Licox IP1P Instrucciones De Uso página 9

Fig. 6: Adjustment of the drill
stop
Drilling
• Drape the shaved and prepared area.
Infiltrating in the area of the incision
subcutaneously with a local anaesthetic is
a surgical option.
• Make a small linear incision carrying it to
the bone. A self-retaining retractor is then
inserted to provide good bone exposure.
• Drill the hole. Do not change the direction
of the drill while drilling, this could cause the
hole to become too wide or conical. Ensure
that the twist drill hole extends through the
inner table of the skull exposing the dura.
Care must be taken when penetrating the
inner table of the skull, to prevent damage
to the dura or brain. Remove the drill and
rinse the hole with sterile isotonic solution.
Dura mater opening
• Open the dura mater carefully by using an
appropriate blade to make a cruciate inci-
sion, securing haemostasis is necessary.
• Irrigate the skull hole with sterile isotonic
solution and make sure that the entry site
in the dura is of adequate size to allow the
probe to pass through without bending,
and that it is cleared of any debris.
Fixation of the bolt
• Thread the bolt into the hole. Fig. 7 and
Fig. 8 illustrate proper placement. Should
undue resistance be encountered, do not
use excessive force. If necessary, drill the
inner table again. If the bolt is too loose a
new hole must be drilled.
• The skin may be sutured around the shaft
of the bolt, at location [a] in Fig. 7.
• The stylet (Fig. 4, h) is advanced through
the bolt to ensure a good pathway for the
introducer and for the probe (Fig. 8); the
stylet is then removed.
Fig. 7: Distance to the sagittal
line >20 mm; scalp may be su-
tured to bolt (a)
Insertion of the introducer
• Hold the introducer by the outer tube (a)
Fig. 9: Insertion of the introducer
Fig. 8: Insertion of stylet
through the bolt ensures a
good pathway for the probe
DO NOT REMOVE THE GUIDE WIRE
FROM THE INTRODUCER
Fig. 4, b, BEFORE THE INTRODUCER IS
INSERTED INTO THE BOLT.
above the compression cap (b) shown in
Fig. 9 and insert it as far as possible into
the bolt. Then the introducer tip reaches
approximately 20 mm (Fig. 15) out of the
bolt.
LUMEN,
9