LBL-2019-41-v4 OptoMonitor 3 IFU wTAVI_en Rev 2022-03
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11.4
Aortic Input Zeroing Failed
The transducer Pa Input zero cannot be performed under the following circumstances:
a.
Pressure is varying (such as pulsatile blood pressure).
b.
The difference between the transducer AO value and the Display Unit Pa value is
±200mmHg.
If the Pa Zero failed, in the case where zero has not been performed on Pa, the message”
Aortic zero
failed!
” is shown.
In the case where Pa has been zeroed once, and a zero value is stored in the memory, the message “
Aortic
zero failed, old value used”.
Ensure aortic stopcock is open to air.
1-
Ensure all connections are properly established.
Press the Ao Zero button to initiate the Pa zero.
11.5
Equalization Failed
“No Pd signal detected”
Equalization will not be performed because Pd signal isn’t detected. Check connections between pressure
guide wire, Handle-Unit, Optical-Unit and Display-Unit. Make sure both OU and DU are powered-on.
“No Pa signal detected”
Equalization will not be performed because Pa signal isn’t detected. Check connections between Pa Source
(can be transducer or Aux), Optical-Unit and Display-Unit. Make sure both OU and DU are powered-on.
“
Communication error with Optical Unit. Please check Wireless Signal Strength or Physical
Connection.”
Equalization will not be performed because there is a poor or no connection between the Optical-Unit
and the Display-Unit. Check cable connections and signal strength if Optical-Unit and Display-Unit are
connected via wireless.
“
Pressure average difference is out of limit. Please check setup and make sure live pressure.”
Equalization will not be performed because there is a difference of at least twice the value between aortic
and distal pressures.
This means the equalization factor isn’t between 0.48 and 2.08.
“Cannot compute dPR. Please make sure live pressure curves are valid and aligned.”
After a first attempt to equalize, if the equalization factor or dPR factor can’t be applied to the OU, the
software will automatically try to equalize a second time. After trying two unsuccessful equalizations in a
row, this message will be displayed, and
equalization will not be performed because the pressure curves
are not good enough quality (pressure damping, contrast agent, etc.) or have an unexpected shape.
“Equalization not completed.”
If this message appears on the screen, contact Opsens for troubleshooting steps.
11.6
Pressure Wire Delay messages
“Please make sure live pressure curves are valid and aligned.”