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The MICROSENSOR must be zeroed at
atmospheric pressure prior to implantation.
The transducer element is light sensitive and
must be shielded from direct light sources during
zeroing and usage.
Do not expose ICP transducer to solvents or
cleaning agents, including alcohol; these can
cause inaccurate ICP measurements.
Read all instructions included with the
ICP EXPRESS Monitor prior to use.
Use CODMAN Patient Monitor Interface Cables
only with the patient monitors for which they are
specifically designed and designated.
Do not submerge the tip of the transducer or
catheter vertically in a deep pool or cup of sterile
water/sterile saline. Doing so will impose a
hydrostatic pressure on the transducer diaphragm
that is higher than atmospheric zero, resulting in
an inaccurate zero reference.
The MICROSENSOR transducer tip must remain
wet during the zeroing process.
Exposure to electrostatic discharge (ESD) energy
could damage this device. High levels of ESD
could damage the electronic components and
cause the transducer to be rendered inaccurate
or inoperable. Take all precautions to reduce the
buildup of electrostatic charge during the use of
this product and avoid touching the transducer
connector pins. Refer to Electrostatic Discharge
(ESD) Information section.
The use of a defibrillator or any electrosurgical
equipment; e.g., monopolar, bipolar, diathermy,
can cause damage to the MICROSENSOR. This
could lead to permanent or temporary disabling of
the sensor.
Adverse Events
Hemorrhage can occur at the site of bolt placement
from either the skull, cortical or dural areas. Testing
of the blood clotting factor must be conducted on
patients before insertion of the bolt.
Decisions regarding the possibility of subarachnoid,
intracerebral or extracerebral hemorrhage at the
site of placement are the sole responsibility of the
attending neurosurgeon.
Infection, subcutaneous CSF leakage and
neurological sequelae are potential complications of
this procedure.
Connecting and Zeroing the Transducer
CAUTION: Read all instructions included with the
ICP EXPRESS Monitor prior to use.
CAUTION: The MICROSENSOR must be zeroed
at atmospheric pressure prior to implantation.
1. Connect the MICROSENSOR to the
ICP EXPRESS Monitor using the appropriate
sterile transducer interface cable. Use cable
model 82-6636. The cable must be sterilized prior
to use. Refer to product insert provided with the
cable for sterilization information.
2. If applicable, connect the ICP EXPRESS Monitor
to an available pressure channel on an external
patient monitor using a CODMAN Patient Monitor
Interface Cable. CAUTION: Use CODMAN
Patient Monitor Interface Cables only with the
patient monitors for which they are specifically
designed and designated. Secure the two
locking screws on the cable to prevent inadvertent
disconnection during use.
3. Proceed to zero and calibrate the external patient
monitor according to the instructions provided with
the ICP EXPRESS Monitor, as well as the external
patient monitor manufacturer's instructions.
4. Prepare to zero the MICROSENSOR by laying
the tip of the transducer (or ventricular catheter)
in a shallow pool of sterile water or sterile saline.
The accompanying sterile blister package has a
marked well that is suitable for this procedure. Pour
sufficient sterile water/sterile saline into the well,
then lay at least a 5 cm section of the transducer
(or ventricular catheter) horizontally just under the
surface of the sterile water/sterile saline. CAUTION:
Do not submerge the tip of the transducer or
catheter vertically in a deep pool or cup of
sterile water/sterile saline. Doing so will impose
a hydrostatic pressure on the transducer
diaphragm that is higher than atmospheric zero,
resulting in an inaccurate zero reference.
5. While keeping the tip of the MICROSENSOR
(or ventricular catheter) flat in the sterile water/
sterile saline, proceed to zero the MICROSENSOR
according to the instructions provided with
the ICP EXPRESS Monitor. CAUTION: The
MICROSENSOR transducer tip must remain
wet during the zeroing process.
6. Record the three-digit zero reference number
provided by the ICP EXPRESS Monitor. Mark the
number on the MICROSENSOR connector housing
or patient's chart for future reference.
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