Using the BrainZ Adaptor Set
The BrainZ Adaptor Set is for single-patient use with hydrogel, needle, or disc electrodes.
Electrodes must have 1.5 mm touch-proof connectors (DIN 42802 standard).
Short electrode wires (e.g. 30 cm) may provide better signal quality.
Read these instructions in conjunction with the BRM Brain Monitor Reference Manual, the BRM
Onscreen Help or BRM3 Quick Guide, and any instructions provided by the electrode manufacturer.
Caution: US Federal law restricts this device to sale by or on the order of a physician.
Caution: Use hydrogel electrodes only on unbroken skin.
Items you will need:
Hydrogel electrodes (available from BrainZ Instruments Ltd), or needle or disc electrodes
O>FK7ÐA>MQLOÐ0BQÐkÐFK@IRABPÐQBOJÐ>KAÐpre-term electrode positioning aids
Skin preparation gel e.g. NuPrep (for hydrogel or disc electrodes)
Standard medical supplies for preparing the skin and securing needles (for needle
Positioning and attaching the electrodes
Warm hydrogel electrodes by placing them in the incubator or under the first layer of linen
on a heat table.
Use the appropriate electrode positioning aid to locate the correct electrode positions.
Mark the sites with a skin marker. Select a site with no hair for the reference electrode, on
or near the shoulder.
For hydrogel or disc electrodes, use gauze to apply NuPrep gel to the electrode sites.
Gently rub to remove the surface layer of dead skin. Use clean gauze to remove any excess
gel and dry the skin.
For needle electrodes, clean the site around the insertion point.
Attach hydrogel electrodes, insert needles or attach discs to the marked sites. Make sure
there is no contact between the electrodes. For hydrogel electrodes, cup your hand over
each sensor and apply gentle pressure for 20 - 30 seconds, to warm and seat the gel. For
needle electrodes, secure the needles to prevent them being pulled out.
Connect the Adaptor Set black wires to the back electrodes hBLACKISBACKv and the
?>?VgPÐIBCQÐ>KAÐOFDEQ Ð LKKB@QÐQEBÐDOeen wire to the reference electrode.
Connect the Adaptor Set to the BRM Brain Monitor DAU. Make sure the arrows on the
connectors are aligned.
Route all cables so they are out of reach of the baby.
Check for good electrode contact using the BRM Brain Monitor Signal Status screen.
Removing the electrodes
The recommended maximum usage period for the BIB@QOLABPÐABMBKAPÐLKÐQEBÐJ>KRC>@QROBOgPÐ
FKPQOR@QFLKPÐ>KAÐVLROÐELPMFQ>IgPÐFKCB@QFLKÐcontrol policy. The recommended maximum usage
period for the BrainZ Hydrogel Electrodes is 72 hours.
For hydrogel electrodes, carefully lift one edge and wipe underneath with a damp gauze
pad to wet the gel. Remove the sensor as the gel releases. Never try to pull the sensor free
quickly or without water. For other electrode QVMBP ÐOBCBOÐQLÐQEBÐBIB@QOLABÐJ>KRC>@QROBOgPÐ
Dispose of the used Adaptor Set in accordan@BÐTFQEÐVLROÐELPMFQ>IgPÐFKCB@QFLKÐ@LKQOLIÐ
If the impedance of any electrode drops to a low value (less than 0.3 kOhms), check the
electrodes are not touching each other.
If any electrode is indicated as yellow or red on the Signal Status screen:
a. For hydrogel electrodes, apply heat and pressure from cupped hand to re-seat the
b. For other electrode types, or if (a) is ineffective, remove the faulty electrode, reprepare the site, and re-apply the same electrode or a new electrode.
CZD00101 Issue 2, 06/2008