FONA XPan 3D Operating Instructions
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69 683 70110
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150831
7.2 Positioning the patient
Preparations
Have the patient remove from head and neck all metallic items
such as removable denture, earrings, necklaces, glasses which
might cause ghost images on the radiograph.
Physical constitution, clothing, bandages, etc. must not interfere
with the movement of the arm.
If in doubt, perform a test rotation without radiation by having
selected before the TEST mode.
In case a protective apron is used leave the neck free not to
interfere with the X-ray beam: radiation enters from sides and
from back.
Insert bite block or chin rest according need.
With the arm in “PATIENT ENTRY” position, have the patient
stand in front of the mirror close to the unit.
Bring the unit the proper height using UP or DOWN keys.
NOTE
The height adjustment motor starts slowly and then increases its
speed. Press the height adjustment key until the unit has reached the
desired height.
Standard exposure program
Bring the carriage to have the bite block or the chin rest slightly
higher.
… with bite block, and chin rest with bite block
Have the patient bite into the indentation in the tip of the bite
block.
Mouth is closed but teeth are not superimposed.
… with chin rest and support for patient without anterior teeth
Make sure the upper and lower jaws are lined up with each
other.
Use of a cotton roll to prevent superimposition of teeth.
The patient must stay with lowered shoulders and advanced feet,
close to the column, to favor spine stretching at cervical level for
a better beam penetration, holding firmly the handles.
Switch on the light beam localizers.
ATTENTION
The light beams are LASER lights. Avoid unnecessary exposure of the
eyes of the patient or of the operator to the laser radiation and pay
attention that the laser beams are not intercepted by any optical
device.