Chapter 3
Page no. 26
3-gantry.fm
GE Healthcare
Senographe DS Acquisition System
Revision 1
Operator Manual 5307907-3-S-1EN
Senographe DS Gantry and Generator
1-2-3
Arm elevation control buttons (reference 5 in the illustration)
•
Use one of these buttons to move the Arm up or down. Press the top or bottom of the button lightly to
move the Arm up or down at low speed. Press harder to increase the speed of movement. Release
the button to stop the movement.
Note:
If the Arm touches an obstacle during downward movement, the movement is stopped.
•
Collimator light and FOV button
(behind the tube head):
When the collimator light is off, press this button to switch the light on for approximately 45 seconds.
When the light is on, press the button to change the field of view to the next available size.
With the Bucky mounted, the sequence is 19 x 23, 13 x 18, 9 x 9 (and then back to 19 x 23).
With a mag stand mounted, the sequence is 13 x 23, 13 x 18, 9 x 9 (and then back to 13 x 23).
1-3
Compression Arm
The
compression system
includes the paddle holder, the manual compression adjustment knobs, and
the interchangeable compression paddle.
Compression and decompression
are controlled by the manual compression knobs or by foot pedals
placed on the floor. Pre-programmed decompression may be activated automatically at the end of an
exposure, or by use of the compression release button on the X-ray Console.
Maximum compression force,
speed of compression and decompression height
are programmed
from the
medical set up
menu.
•
Automatic compression speeds
The speeds of movement when using automatic compression are normally set to:
Up: 9 cm/sec (3.54 inch/sec).
Down: 7 cm/sec (2.76 inch/sec), falling to 5 mm/sec (0.2 inch/sec) on breast contact.
•
Manual compression knobs
Located on each side of the compression paddle arm, they allow manual adjustment of the compres-
sion. Turn the top of the knob towards the patient to increase compression, away from the patient to
decrease compression.
Manual compression
knobs
Paddle holder
Interchangeable paddle
Arm Movement knobs
Control buttons
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TRAINING
PURPOSES
ONLY!
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