Codman MICROSENSOR Bedienungsanleitung Seite 7

The transducer element is light sensitive and must
be shielded from direct light sources during zeroing
and usage.
Take care when tying sutures onto the sensor.
Tying sutures too tightly can collapse the wall of the
sensor body, causing damage to internal wires.
Prior to using the Tuohy-Borst adapter, finger-tighten
all LUER-LOK connections. These connections could
loosen during shipping and handling.
Do not expose ICP transducer to solvents or
cleaning agents, including alcohol; these may
cause inaccurate ICP measurements.
Do not hit the transducer tip with the stylet. Damage
could result.
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 may occur at the site of transducer
placement from either the skull, cortical or dural
areas. Testing of the blood clotting factor should be
conducted on patients before insertion.
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.
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