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Patient Monitoring with the SDMS
Sensor Application Using an Ear Clip
According to the procedure described point by point below, the
Ear Clip is first attached to the earlobe, then one small drop
of contact liquid is applied to the sensor surface, and, finally,
the sensor is snapped into the Ear Clip attached to the earlobe.
Alternatively, you may click the sensor into the clip’s retainer
ring first, apply one small drop of contact liquid to the center
of the sensor, pull off both liners protecting the clip’s adhesive
tapes, and then apply the sensor/clip assembly to the earlobe.
In this case, ensure to keep the clips jaws open and to hold
the sensor/clip assembly such that the contact liquid does not
run off the sensor face until the sensor/clip assembly is applied
to the earlobe.
WARNING: Application of any pressure to the
measurement site (e.g. by using a pressure bandage) may
cause pressure ischemia at the measurement site and,
consequently, inaccurate measurements, necrosis or – in
combination with heated sensors – burns.
1. Check current SDM Settings/SDM Profile and verify system
readiness (message ‘Ready for use’, p. 22). Change SDM
Settings/SDM Profile if necessary.
2. Clean the earlobe with a swab wetted
with 70% isopropanol (or according
to your institution’s skin cleaning/
degreasing procedures) and let it dry. If
necessary remove hair.
3. Take an Ear Clip out of the package,
open the clip jaws and pull off both
liners protecting the adhesive tapes of
the clip.
CAUTION: The SenTec Ear Clip (model EC-MI) is for
single-use. Neither reattach used clips on the same nor on
another patient!
4. Pull the earlobe to stretch its skin and
then attach the Ear Clip with its retainer
ring on the backside of the earlobe.
Verify that the skin under the retainer
ring’s adhesive is not wrinkled and that
the hole in the center of the retainer
ring completely covers the skin.
Then squeeze gently to ensure that
both adhesive tapes stick firmly to the
earlobe.
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