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Figure 11.
ILLUMINATION TECHNIQUE
Maximum illumination, shadow reduction, and pos-
sible obstruction by the surgeon or surgical staff
are also major concerns for lighthead positioning.
The following examples are offered as a basic
guide for lighthead placement for large diameter/
satellite, dual lighthead, or triple lighthead fixtures.
Large Diameter/Satellite Lighthead
Positioning
The large diameter lighthead should be pre-posi-
tioned over the surgical site. The satellite can be
used on either side of the surgeon for augmentation
and shadow control.
The large lighthead should be positioned perpen-
dicular to the bottom of the surgical cavity.
Head
To illuminate the head area, position the large
diameter lighthead radial arm parallel to the table
centerline. See figure 10. Position the lighthead
behind the surgeon. Tilt the lighthead to the desired
position using pitch axis movement. This will allow
the multiple light sources of the lighthead to pass
around the head and shoulders of the surgeon and
at the same time permit adequate head clearance
for the surgeon.
Tilt the lighthead to position the focus control knob
where it can be easily reached by non-sterile
personnel.
Position the satellite to the left or right according to
surgeon preference. This allows a second light
source to come from another angle which will help
eliminate obstructions or shadows.
Torso Area
For most chest and abdominal procedures, posi-
tion the large lighthead directly over the surgical
site. See figure 11. Position the radial arm on
approximately a 45° angle from the surgical table
centerline. This position will locate the sterile focus/
positioning handle on the lighthead where it can
easily be reached by the surgeon. The focus con-
trol will be where it can easily be reached by non-
sterile personnel. Position the satellite lighthead,
depending on lighting needs, to augment the larger
lighthead.
Figure 10.
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