Nellcor™ OxiMax™ forehead SpO2 sensor
INTERNAL CAROTID ARTERY –THE KEY TO SENSOR PLACEMENT
The lower forehead just above the eyebrow is ideal
for sensor placement because its circulation stems
from the internal carotid artery. Advantages are:
vasoconstriction compared with peripheral
or ear sensor sites.
pulsatile signals without interference from
PROPER PLACEMENT IS ESSENTIAL
lace the sensor just above the left or right eyebrow
centring it with the iris.
the sensor firmly on the site for 10 seconds to
For optimal results this position is key, as pulse
perfusion is stronger in the lower forehead
area and weaker higher up.
Do not place the sensor on the temple.
BENEFITS OF USING THE HEADBAND
The use of the headband is necessary
to assure optimum performance:
the Velcro™* tab until the green arrows
on the elastic band are within the green
secure the headband, fasten with the Velcro™*
check the headband.
Read the sensor’s “Directions for Use” insert for complete instructions for use,
including all warnings, cautions and specifications, prior to use of this product.
WHY correct SENSOR PLACEMENT IS ESSENTIAL
he Max-Fast™ OxiMax™ Pulse Oximetry System offers an advancement
in patient safety monitoring, because it detects changes in arterial oxygen
saturation (SpO2) significantly before digit sensors for patients with poor
pulse perfusion1. However, complexities of the anatomy make it essential
to place the Max-Fast sensor on the correct area of the forehead to ensure
reliable, accurate pulse oximetry readings.
BENEFITS OF USING THE HEADBAND
The Max-Fast Headband helps hold the sensor in place and applies
gentle pressure to expel any pulsing venous blood from the sensor
site, if present. The headband is recommended for all patients, in
particular for patients that are:
Lying down and the head is near or below chest level.
Subject to elevated venous pressure.
Moving excessively, such as during exercise.
Note: Forehead sensors are contraindicated for patients in the Trendelenburg position (headdown).
AREAS TO AVOID
Large pulsing blood vessels (e.g., temporal
artery) can cause inaccurate SpO2 readings
because the sensor detects any large lightabsorbing objects that move with the
heartbeat. Therefore, do not place the
Max-Fast sensor on the temple or on the
SENSOR APPLICATION TIPS
Rotate the forehead sensor site every 8-12 hours for skin integrity and
sensor adhesion. Move the Max-Fast Forehead Sensor to a new area
When repositioning the sensor following a site check, remove the
current adhesive ring to expose a fresh layer of adhesive and clean
the new site prior to application.
midline or upper areas of the forehead.
If you have any questions about the Max-Fast™
D.E. Bebout, P.D. Manheimmer and C-C. Wun, “Site-Dependent Differences in the Time to Detect Changes in Saturation
Forehead Sensor or would like to receive
During Low Perfusion,” Critical Care Medicine, December 2001, Vol. 29, No. 12, p. A115
additional copies of this Application Guide,
D.B. MacLeod, L. I. Cortinez, J.C. Keife et al., “The Desaturation Response Time of Finger Pulse Oximeters During Mild
please contact your local Covidien representative.
Hypothermia”, Anastesia, january 2005, Vol. 60, No 1, pp. 65-71
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