Integra Budde Mode D'emploi page 8

EN – ENGLISH
CAUTION:
Always be sure the two sets of sunburst teeth
on the halo's hinge mesh properly. Failure to do so
may result in damage to the device.
NOTE:
When positioning the patient for Posterior Fossa
approaches with the patient in the Park Bench
position, it is recommended that the halo ring's
adjustable segment be positioned to the inferior
direction relevant to the patient. This allows the
ring's adjustable segment to be angled, so the halo
ring can be lowered closer to the operative site and
avoid the patient's shoulder.
7. Attach retractor arms. Openings for the retractor
arms are located on the halo ring directly under
the two locating arrows. Insert the dovetail
section of the retractor arm into the opening and
slide into the groove (Figure 9).
Figure 8
Figure 9
8. Attach the retractor blades to the retractor arms.
Grasp the chuck on the retractor arm between
the thumb and index finger, while other fingers
grasp the remainder of the retractor arm. Slide
the chuck forward and insert the stem of the
retractor blade. Then release chuck. (Figure 10)
NOTE:
Groove on stem must align with centering dot on
chuck.
9. After locating retractor arms in the desired
positions, lock them in place securely by turning
the thumbscrew clockwise. (Figure 11)
10. To make adjustments in the retractor arm
position, loosen the knob until the arm becomes
limp. Position the retractor as desired. The
retractor arm may be positioned over or under
the split halo ring. Retighten the knob. Once
the retractor blades are set in the field and only
subtle movements are needed, no readjustment
of the knob is required.
CAUTION:
Forcing the retractor arms to move against
their present tension will cause the cable in the
retractor arm to wear and possibly break. The ball
joints will also become scored and the arm will
7
Figure 10
Figure 11