B. Braun Aesculap Spine Quintex SC420R Gebrauchsanweisung/Technische Beschreibung Seite 8

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WARNING
Damage to the Quintex® plate/screw and cortical center punch
through the use of excessive force and torque when center punching
or screwing in the Quintex® screw!
►
Do not use the cortical center punch to prepare screw holes in hard
bone, instead use a drill and tap.
CAUTION
Incorrect drill depth and damage through the use of a re-sharpened or
shortened cortical center punch or drill!
►
Do not re-sharpen the cortical center punch (without outer sleeve)
and drill.
►
Replace blunt cortical center punches and drills with new ones.
a
b
Fig. 8
Legend
a Self-centering cortical center punch I complete
b Self-centering cortical center punch I, without outer sleeve 11
Fig. 9
►
Insert cortical center punch (without outer sleeve) I and drill K with
drill guides E, F, G or H only.
Note
The maximum penetration depth of the cortical center punch I with
mounted outer sleeve is 6 mm.
Note
The maximum penetration depth of the cortical center punch I through the
drill guide is 6 mm to the shoulder between distal tip with trochar and the
shaft.
This shoulder will act as a stop on the cortical bone.
CAUTION
Incorrect positioning of the center punch point or center punching too
deep!
►
Use the cortical center punch without outer sleeve only in combi-
nation with a drill guide.
►
Do not center punch too deep.
6
K
►
Insert the cortical center punch (without outer sleeve) I or drill K into
the drill guide and check depth with caliper (e.g. 14 mm).
►
To adjust the required drill depth with the depth-adjustable drill guides
E and F (10 mm to 28 mm), turn guide sleeve 3 of the drill guide in
direction + or –.
Note
The thread in the drill guide is a left-hand thread. Every half turn (= depth
adjustment by 0.5 mm) you will hear and feel the guide sleeve clicking into
position.
3
3
3
Fig. 10
K
Fig. 11
F
K
K
3
3
J
E
I
F