B. Braun Aesculap S4 Cervical, Инструкция по эксплуатации / Техническое описание

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8
en
DANGER
Risk of injury to the patient!
►
Before use, ensure that the selected instrument has been correctly
assembled. Ensure that the arrow on the underside of the reference
star unit ML is pointing to the tip of the tool.
►
Prior to using the instrument with the correctly held screw, perform
manual calibration with the Brainlab instrument calibration matrix
version 4, see Brainlab user manual.
►
Screw in the screw under control with the Brainlab navigation system.
When doing so, hold reference star unit ML at the planned indentations
with one hand, and turn the S
4
C handle C to screw in the screw 11
with the other hand.
2.3.6 Smooth-shaft screw instruments
WARNING
Risk of injury to patients due to incorrect navigation!
►
Observe the combination specifications
Instruments for smooth-shaft screws are marked with a light-blue ring.
They are used to center punch, drill and tap holes for smooth-shaft screws
Ø
4 mm.
DANGER
Serious complications for the patient can be caused by incorrect posi-
tioning of instruments or implants!
►
Carry out operative steps with radiographic visualization.
►
When removing the smooth-shaft screw awl (FW085R) and during
the further operating steps, ensure that the S
4
C navigated smooth-
shaft screw guide sleeve remains securely fixed in place.
►
Ensure that the window on the S
4
C navigated smooth-shaft screw
guide sleeve is closed during the preparation of the screw hole and
while the screw is being inserted, see laser marking on the inner
sleeve.
►
Take care that no tissue gets caught when opening and closing the
window on the S
4
C navigated smooth-shaft screw guide sleeve,
after the screw has been put in place.
►
For mounting the reflective Brainlab marker spheres 4 onto Aesculap
star unit H , see Brainlab user manual.
►
Retract and hold locking sleeve 1 against the spring pressure in the
direction of the arrow.
►
Aesculap star unit H is then pushed onto adapter 2 . When doing so,
ensure that the recess on the star unit is seated over the pin 3 of the
adapter.
►
Release locking sleeve 1 .
Fig. 10 Mounting the Aesculap star unit on the S
4
C guide sleeve for
smooth-shaft screws
DANGER
Risk of injury to patients due to incorrect navigation!
►
Slide reduction sleeve into the Brainlab instrument calibration
matrix version 4, until you hear an audible click.
►
Prior to each use, check and/or validate the instrument with special
reduction sleeve J with the Brainlab instrument calibration matrix ver-
sion 4, see Brainlab user manual. Ensure that all other instruments
(centering tool, drill, tapper etc.) are removed for the instrument vali-
dation.
Fig. 11 Reduction sleeve for validation/verification with the Brainlab
instrument calibration matrix version 4
►
To ensure that the camera has an unrestricted view of the reflective
marker spheres, loosen knob
6 on the S
4
C handle of the S
4
C guide
sleeve I and rotate Aesculap star unit H to the desired position, see
Fig. 10.
►
Once the desired position is reached, tighten knob 6 again.
►
Place S
4
C guide sleeve I for smoothshank screws in the operating field.
When doing so, ensure that the window of the guide sleeve is closed
during the preparation and insertion of the screw with the guide sleeve,
see laser marking on the inner sleeve
13 .
►
Center punch the cortical layer of the vertebral body with the smooth-
shank screw aw (FW085R), see TA011984 and Operating Technique
(O34202).
►
If necessary, insert the awl into the inner sleeve 13 and center punch
the bone as far as the stop-position. The stop-position is indicated with
a marking on the awl.
►
Remove the awl from the operating field.
►
Insert the smooth-shaft screw drill (FW086SU) 14 with mounted han-
dle (FJ839R) or Intra-handpiece into the inner sleeve 13 .
►
Before drilling, the pre-set drill length must be checked with a caliper
(e.g. AA845R, Caspar instrument for anterior cervical fusion).
4
13
14
6
1
2
3
H
H
I
J