8. Connect the Surgical Probe into the receptacle on the LOCalizer Reader by introducing it through
the cover connector hole. When connected, the LOCalizer Reader automatically identifies the
Surgical Probe as the active probe, performs a self-test and the LOCalizer Reader screen displays
the Surgical Probe icon. When the Surgical Probe is attached, the range of LOCalizer Reader is at
least 30 mm.
LOCalizer Surgical Probe
perpendicular to Tag
Weakest or no response
FIGURE 4. Assessing Tag location/position with Surgical Probe using signal strength (not to scale)
NOTE: Readings will vary depending on the orientation of the Tag, because the signal emitted
is directional along the long axis of the Tag. The LOCalizer Reader will receive the strongest
response and most accurate distance reading when the Surgical Probe is parallel with the Tag.
Signal strength decreases as the Surgical Probe head moves toward perpendicular to the Tag and
the distance accuracy may decrease.
9. During the surgical approach, the LOCalizer Reader may be toggled between the Loop Probe
and Surgical Probe by depressing the probe toggle switch. The active probe is indicated
on the display.
10. Excise intended tissue with implanted Tag.
11. Confirm the Tag is present in the excised specimen using the LOCalizer Reader or imaging
(ultrasound or radiography).
TROUBLESHOOTING
Little or No Tag
Response
Tag distance reading
is incorrect
Tag presence is
indicated and
incorrect
The Tag is out of LOCalizer Reader detection range.
Reposition the LOCalizer Loop or Surgical Probe until a signal is detected.
The Tag signal is receiving interference from another Tag or device.
Remove alternative source of signal or use alternate imaging guidance
such as ultrasound or radiography to confirm Tag location.
The Tag is broken.
An alternate imaging guidance such as ultrasound or radiography should
be used to ensure the entire Tag is removed with tissue removal.
Positioning of the Reader.
Resolution of system allows discrimination of two ends of Tag. Reposition
the LOCalizer Loop or Surgical Probe and look for readings from both ends
of Tag. Readings at these positions have the highest accuracy.
Interference of transmitting equipment.
If a Tag detection is indicated when no Tag is within the normal detection
distance, check for other RFID readers, wireless chargers or other nearby
equipment that may be transmitting in the region of 134 kHz.
Direction of decreasing response
LOCalizer Surgical Probe
parallel with Tag
Strongest response and most
accurate distance reading
User Manual 9