GE Amx 4 Instruction Manual

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
4-3
Steps
To drive the AMX-4+, follow these steps:
1. Make sure that the telescoping arm is in the park/transport position and that 
the battery charging cord is unplugged and fully retracted. 
• In the park/transport position the telescoping arm is: 
a.)completely pushed in; 
b.)centered over the control panel (collimator skin spacers within well); and
c.)securely latched. See Illustration 4-3.
ILLUSTRATION...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
4-4
3 Grip the drive handle to activate the motors and disengage the brakes. Now 
simply steer the unit , like a shopping cart , to your destination.
• When climbing inclines or moving over carpeting or other rough surfaces 
the drive motors will automatically adjust to the floor surface.
• When descending inclines or pushing the AMX-4+ to make it go faster, it 
may stop and display the message RELEASE HANDLE....

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-1
SECTION 5
X-RAY PROCEDURE
Overview
In this section youll learn how to setup and position mechanical components of 
the AMX-4+. Steps for mechanical positioning are organized in the following way.
• Adjustment of column and telescoping arm
• Rotation of X-ray tube unit , and
• Adjustment of collimator
Youll also learn how to select patient parameters (technique selection) and, f inally, 
how to take an X-ray...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-2
5-3 Adjustment of Column and Telescoping Arm
In the following steps you can free the AMX-4+ components for positioning in one 
of two ways: by gripping the collimator handle(s) to keep the lock system released 
or, whenever necessary, overriding the lock system with slight force.
When possible, we recommend that you use the lock release system.
1. Rotate the arm and vertical column assembly to horizontally...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-3
5-4 Tube Unit Rotation
Because the tube assembly is counterbalanced, no active lock is required. And little 
effort is needed to override friction and rotate the tube.
1. Use the collimator handles to position the tube to the desired angle.
• You may rotate the tube in two directions: 
a.) clockwise and counterclockwise +180 degrees (detents at every 
90 degrees), or 
b.) backwards -10 degrees and forwards...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-4
5-5 Adjustment of Collimator
The AMX-4+ manual collimator limits patient radiation exposure to a desired area 
at a given distance from the X-ray tube focal spot .
1. Press the f ield light button (on either the collimator face or handswitch) to 
activate the high-intensity f ield lamp. See Illustration 5-4.
• The field light is timed and automatically turns off 30 seconds after you re-
lease the switch. To...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-5
2 Position the collimator and tube using the f ield light and crosshair shadow as 
guides. The crosshair shows the f ield center. For f ine positioning of the 
collimator, see Step 4.
• Use the tape measure on the side of the collimator to measure the SID 
(source-to-image distance). 
• Refer to the AMX-4+ Exposure Guide in the holder on the front of the column 
for suggested SID and exposure techniques....

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-6
3 Collimate by adjusting the size of the f ield with the two control knobs located 
on the front of the collimator. See Illustration 5-6.
• For fine positioning of the collimator, see Step 4
• The left knob controls the transverse dimension of the blades, and the right 
blade knob controls the longitudinal dimension of the blades. (A diagram on 
the face of the collimator shows which knob controls which...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-7
4 You may rotate the collimator about its vertical axis (that is, to the right or left) 
in two ways: by a simple 90× detent method or by a manual lock method for 
an angle other than 90×. 
•90-degree detent method: Pull out the knob (see Illustration 5-7) and rotate 
the collimator to the desired 90× detent position. The detent will snap in place 
and lock.
•Manual lock method: Pull out the knob, position...

AMX-4+ OPERATION
GE Healthcare (MODEL 2169360, 2236420 & 2275938 SERIES)
REV 15 om 2166913-1EN
5-8
5-6 Technique Selection
Be sure to refer to the AMX-4+ Exposure Guide (found in the card holder attached 
to the vertical column) for suggested techniques.
ILLUSTRATION 5-8 
Steps
1 If youd like to increase the kVp, press the
 UP kVp arrow. To decrease the kVp 
value, press the DOWN kVp arrow. See Illustration 5-8.
2 If youd like to increase the mAs, press the UP mAs arrow. Press the DOWN 
mAs arrow to...