Affirm Breast Biopsy Guidance System Service Manual
Appendix D: Biopsy Device Evaluation Procedure
Page 86 MAN-05754 Revision 002
Calculate New Needle Parameters
1. Open the same procedure used earlier with the QAS needle.
2. Select the same stereo pair acquired earlier.
3. Select the new Device from the list.
4. Select OK at the warning message Target outside biopsy aperture.
5. Select Resend Target.
6. At the Biopsy Control Module, press and hold the Motor Enable buttons to move to
the target.
7. Install the new Needle Guide and device in the extended (post-fire) position.
8. Jog 0.5 mm away from the chest wall.
9. Move the Z down to align the needle tip at the same height as the tip of the Phantom
pin.
10. Note the Z Diff from the Biopsy Control Module. This number is added to the
previously entered length in the Acquisition Workstation Biopsy Devices menu in
the next procedure.
11. At the Acquisition Workstation, close the patient "In Progress".
Adjust the Needle Length at the Acquisition Workstation
1. Select Admin; then in the System section, select Biopsy Devices.
a. Select the Biopsy Device in the list.
b. Select Edit.
c. Calculate the "Length".
Length = Manufacturer Length + Z Diff
Manufacturer Length was recorded earlier in Obtain Needle Specifications on page
84.
Z Diff was noted earlier in Calculate New Needle Parameters on page 86.
2. Enter the new calculate Length as the "Length".
3. Replace the previously entered "0" for the Aperture and Dead Space with the values
from the manufacturer for Aperture and Dead Space as recorded in Obtain Needle
Specifications on page 84.
4. Select Save.
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