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iASSIST 2-Pod Version
Surgical Technique
LED Information
As illustrated in figure 5.1, the pods each have an emplacement for the status/error LED and navigation LEDS. The
status and error LEDs are at the same location and are distinguished by their color and general meaning (green
for the status LED indicating normal functioning of the pods and the system in general and red for the error LED
indicating that an action is required from the user in order to proceed with the surgery.
The navigation LEDs display indication on the resection angles during navigation and on the manipulations needed
from the user in the actual step.
Specific information on the LEDs’ behavior is detailed in the following table.
Status/Error LED
Navigation LEDs Status
Required Action
Pod Power-Up
Blinks rapidly (green)
N/A
The pods are trying to join the system
network for procedure
Wait for the blinking to slow down, indicating
that the network is up
Blinks slowly (green)
N/A
The network is up and ready for the
procedure
Proceed with surgery
Calibration
Blinking green
N/A
The pod needs to be clipped to the
calibration jig for intraoperative
calibration or intraoperative calibration is
over and the pods can be unclipped from
the calibration jig to proceed with surgery
Follow instructions onscreen to clip or unclip
pods from the calibration jig
Solid green
N/A
The pods are adequately clipped to the
calibration and ready for the calibration
process
Proceed with surgery
N/A
Solid green
Indicates the expected calibration jig
position for the intraoperative calibration
Position the calibration jig so that the face
marked with that number is directed upward
and wait for the acquisition to be completed
Registration and Validation
N/A
Blinking green
Manipulations are needed to complete
the registration / validation acquisitions
Use the pattern of the LEDs or the indications
onscreen to perform necessary manipulation
N/A
Steady green
The leg is in the required orientation for
the next acquisition
Stabilize the leg in the actual position until
the registration sound is heard and another
movement is needed
Blinking green
N/A
Successful computation after a sequence
of acquisitions
No action needed. Continue with next step of
surgery.
Navigation
N/A
Blinking red
Resection angle is out of the pod’s range
Use the gold (F/E -Slope) and green (V/V)
screws to adjust the resection angles.
N/A
Solid red
Resection angle is not aligned with target
Use the gold (F/E -Slope) and green (V/V)
screws to adjust the resection angles.
N/A
Solid green
Resection angle is aligned with target
Proceed with surgery
Anytime during procedure
Blinking red
N/A
The pod’s battery level is low: end of life
within the next 30 minutes.
No action needed.
Solid red
N/A
System or pod error
Follow indications on the system controller
display in order to resolve the error
Solid red
N/A
End of battery life
Consider opening a new iASSIST Knee Pod Kit
or switching to conventional instrumentation.
Blinking green
N/A
Everything is working as it should
Proceed with surgery
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