Integra Licox REF IT2 Gebrauchsanleitung Seite 11

• Apply an antiseptic in concentric circles,
beginning in the area of the proposed
incision. The prepared area should be
large enough to extend the incision or
create new incisions, if necessary. The
skin preparation procedure may need to
be modified depending on the condition
of the skin or location of the incision site.
Fig. 6: Adjustment of the drill stop
• Estimate the thickness of the skull and
adjust the drill stop accordingly (Fig. 6).
Loosen the drill stop (Fig. 4, d) with the
hex wrench (Fig. 4, c) about half to one
turn, so that the set screw is still in the
groove of the drill-bit (Fig. 4, b). Rotate
the drill stop around the drill-bit (Fig. 6)
until the exposed tip of the drill-bit is just
long enough to completely drill through
the skull with its inner table. The tip of
the drill-bit should not penetrate the
inner table by more than 1 mm. Tighten
the drill stop.
• Attach the drill-bit to a hand drill. Do
not use a powered drill, such as those
driven by compressed air or electricity.
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.
• Make a second incision of the scalp at
the desired insertion point for the
tunneling procedure
40 - 70 mm from the drill hole site
(Fig. 7).
Fig. 7: A second incision of the scalp approx.
40-70 mm from the drill hole site.
• Drill the hole. Do not change the
Dura mater opening
• Open the dura mater carefully by
• Irrigate the skull hole with sterile
Tunneling the probe guide
• Insert the sharp end of the trocar in the
approximately
Fig. 8: Insert the sharp end of the trocar for
tunnelling towards the drill hole
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.
using an appropriate blade to make a
cruciate incision, securing haemostasis
is necessary.
isotonic solution and make sure that the
entry site in the dura is of adequate size
to allow the catheters to pass through
without bending, and that it is cleared
of any debris.
incision 40 - 70 mm distant from the
drill hole or craniotomy site and tunnel
it below the scalp towards the drill hole
or craniotomy (Fig. 8).
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