User's Manual

Radius-7 Chapter 3- Setup
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1. Remove the Armband from the packaging.
2. Slide the Instrument Module between the Armband fabric and the Armband
plastic as shown in the figure above.
3. The shaped hole in the Armband plastic should fit over the matching key
on the front side of the Instrument Module.
4. Connect the Battery Module securing the Armband Adapter between the Battery
Module and the Instrument Module.
5. Select a site on the patient's arm to secure Radius-7. Place the Radius-7 on the
arm with the Masimo logo on the top and making sure the Armband fabric is
between the Radius-7 and the arm.
CAUTION: If the device is being applied directly to the patient's skin, select a site
that is free from skin irritation or signs of chaffing.
CAUTION: Only the smooth side of the Armband fabric should make contact with
the patient when properly applied.
Note: The Radius-7 should be oriented so that the Acoustic Sensor connector is
the closest connector to the patient's neck.
6. Loop the Armband strap around the patient's arm and thread the strap through
the remaining open slot of the Armband plastic from the rear and secure the end
of the Armband strap by pressing the tab on the end onto the Armband fabric.
7. Check to ensure the strap fits comfortably around the patient's arm.
WARNING: Armbands applied too tightly or that become tight due to edema will
cause inaccurate readings and can cause pressure injury.
WARNING: The Armband site must be checked frequently or per clinical protocol
to ensure adequate securement, circulation and skin integrity.
WARNING: Discontinue and dispose of Armband if it appears to be stained or
becomes excessively moist to minimize risk of skin irritation.
CAUTION: Ensure that the Armband does not slide off the arm.
8. Connect sensor(s) to the Instrument Module.
9. See Directions for Use for each sensor for proper application of the sensor to the
patient.
WARNING: As with all medical equipment, carefully route patient cabling to
reduce the possibility of patient entanglement or strangulation.