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CODFR06058xx01v10.qxd
3/8/07
1. Lay approximately three inches of the tip of the MicroSensor or
ventricular catheter flat in the marked well of the sterile blister. Pour
sufficient sterile water or saline into the well to just barely cover the
MicroSensor or ventricular catheter. CAUTION: Do not submerge the
tip of the MicroSensor or ventricular catheter vertically in a cup of
sterile water or saline. Doing so will impose pressure on the
transducer diaphragm that is higher than atmospheric zero,
resulting in an inaccurate zero reference value.
2. While keeping the tip of the MicroSensor or ventricular catheter flat
in the sterile water or saline, press the
Monitor front panel. The message "TRANSDUCER ZEROING IN
PROCESS (PLEASE WAIT)" will appear on the ICP EXPRESS Monitor
screen while the zeroing process takes place.
3. Upon successful completion of the zeroing process, the ICP EXPRESS
Monitor will display the MicroSensor's three digit zero reference value.
Record the displayed zero reference value on the MicroSensor
connector housing and on the patient's chart for future use.
NOTE: When zeroing is complete, the MicroSensor's zero reference value
is automatically stored in the memory element embedded in the attached
ICP EXPRESS Cable. By storing the zero reference value in the cable, the
user has the ability to move the patient to a different ICP EXPRESS Monitor
without having to manually adjust the zero reference value on the new unit.
This feature can only be utilized if the original ICP EXPRESS Cable remains
with the patient whenever he/she is moved to another patient monitoring
system. If the original cable does not remain with the patient, the user
will be required to manually adjust the zero reference value on the new
ICP EXPRESS Monitor to the zero reference value previously recorded
on the MicroSensor connector housing or the patient's chart.
4. If the transducer zeroing process is unsuccessful, the message
"TRANSDUCER ZEROING ERROR" will appear. Verify that the tip of the
MicroSensor or ventricular catheter is still laying flat in the sterile water or
saline, then press the
key to clear the error and reinitiate the zeroing
process. Discontinue use if the transducer zeroing error persists, and
consult with appropriate technical personnel.
5. After recording the zero reference value on the MicroSensor connector
housing and the patient's chart, press the
6. The ICP EXPRESS Monitor is now in standard display mode. The
MicroSensor is now ready for placement.
Alarm Functions
Changing Alarm Limits
The HI and LO mean ICP alarm limits have default values of
20 mmHg and 0 mmHg, respectively. The following instructions
describe the correct procedure for changing these limits.
1. From the standard display mode, press the
main menu screen.
2. Use the
or
keys to move the cursor to the SET ALARM
LIMITS line, then press the
above the mean ICP value.
3. Use the
or
keys to increase or decrease the displayed
HI alarm limit to the desired value. Press the
The LO alarm limit will be displayed above the mean ICP value.
4. Use the
or
keys to increase or decrease the displayed
LO alarm limit. Press the
standard display mode.
NOTE: The HI and LO alarm limits will reset to their original default
values (HI: 20 mmHg; LO: 0 mmHg) whenever the ICP EXPRESS
Monitor power is turned OFF.
Changing Alarm ON/OFF Status
1. From the standard display mode, press the
main menu.
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key on the ICP EXPRESS
key to proceed.
key to bring up the
key. The HI alarm limit will be displayed
key to enter the value.
key to enter the value and return to the
key to bring up the
2. Use the
or
keys to position the cursor on the TURN ALARM
ON or TURN ALARM OFF line item.
3. Press the
key to enter the new alarm condition and return to the
standard display mode. The new alarm status will be displayed at the top
center of the screen.
Manual Functions
The following additional functions are available while ICP monitoring
is in progress.
Adjusting the Transducer Zero Reference Value
The following instructions describe the procedure for manually adjusting
the zero reference value for the attached MicroSensor. CAUTION: The
ICP EXPRESS Monitor transducer zero reference value setting should
only be adjusted manually if the displayed value differs from the value
recorded on the MicroSensor connector housing or patient's chart.
1. From the standard display mode, press the
main menu.
2. Use the
or
keys to position the cursor on the MANUAL
ZERO line, then press the
key.
3. Use the
or
keys to position the cursor on the ADJUST
REFERENCE line, then press the
4. Use the
or
keys to change the three digit zero reference
value until it matches the value recorded on the MicroSensor connector
housing or patient's chart.
5. Press the
key to enter the zero reference value and return to the
standard display mode. The new zero reference value is automatically
updated in the internal memory of the ICP EXPRESS Cable.
Re-Zeroing the Patient Monitor
The following instructions describe the procedure for manually re-zeroing
the patient monitor.
1. From the standard display mode, press the
ICP EXPRESS Monitor front panel.
2. Wait for the external patient monitor display to stabilize. If the monitor
displays a value other than 0 mmHg, proceed to zero balance the patient
monitor per the monitor manufacturer's instructions. CAUTION: Discontinue
use if the patient monitor can not be properly zeroed to the
ICP EXPRESS Monitor. Consult with appropriate technical personnel.
3. Press the
key to resume patient monitoring.
Re-Calibrating the Patient Monitor
The following instructions describe the procedure for manually re-calibrating
the patient monitor.
1. Press the
or the
key on the ICP EXPRESS Monitor panel.
2. If the
is selected, verify that the patient monitor displays exactly
20 mmHg. If the
key is selected, verify that the patient monitor
displays 98 to 102 mmHg. There may be a short delay (10–15 seconds)
before the patient monitor display stabilizes. If the patient monitor does not
display the correct value, refer to the monitor manufacturer's instructions for
information on how to adjust the pressure channel calibration or gain (some
patient monitors do not have this feature). CAUTION: Discontinue use if
the patient monitor cannot be properly calibrated to the ICP EXPRESS
Monitor. Consult with appropriate technical personnel.
3. Press the
key to resume patient monitoring.
Changing System Components During Monitoring
The following procedures must be followed whenever any component of
the original ICP patient monitoring system (i.e., ICP EXPRESS Monitor,
ICP EXPRESS Cable, patient monitor) is changed or substituted while
patient monitoring is in progress.
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key to bring up the
key.
key on the
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