Application Guide
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Nellcor™ OxiMax™ forehead SpO2 sensor Application Guide 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:
• Little vasoconstriction compared with peripheral
or ear sensor sites.
• Strong pulsatile signals without interference from
large vessels.
PROPER PLACEMENT IS ESSENTIAL •
P lace the sensor just above the left or right eyebrow centring it with the iris.
• Press the sensor firmly on the site for 10 seconds to
ensure adherence.
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:
• Pull the Velcro™* tab until the green arrows
on the elastic band are within the green tension indicator.
• To secure the headband, fasten with the Velcro™*
tab.
• Periodically 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 T 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: Temporal Artery
Lying down and the head is near or below chest level. • Subject to elevated venous pressure. • Diaphoretic. • 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 as necessary. 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
1
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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