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How to use two EEG amplifiers for 64 channel recordings

Оглавление

Neuron-Spectrum-5 and Neuron-Spectrum-6g EEG amplifiers from Neurosoft company can be paired up to increase EEG channels. It is usually necessary for invasive EEG recording or for High-density EEG.

64 EEG channels according international "10-10%" system
64 EEG channels according international "10-10%" system

64-78 channel solutions

Neurosoft has special solution for such needs with two Neuron-Spectrum-6g amplifiers and all accessories.

Neurosoft 78-channels solution with two NS-65
Neurosoft 78-channels solution with two NS-65

You also can combine all NS-6g series devices, not only NS-65. For example with two NS-64 you can get up to 50 EEG channel. Also you can paired NS-65 with NS-64, for example.

As for NS-5, you can use paired solution for 64 EEG channels recording (or up to 68 with Ref referent - in this case A1, A2 will be used as active electrodes).

Mount

For the mountain two device on one stand, you can use special unit for mounting two amplifiers:

Mounting plate for two amplifier units
Mounting plate for two amplifier units

For NS-5 it is necessary to order:

  • Mounting plate for two amplifier units NS016221.022 (code 222752): 1 pcs.

For NS-65 it is necessary to order:

  • Mounting plate for two amplifier units NS016221.070 (code 241268): 1 pcs.
Two amplifiers mounting
Two amplifiers mounting

Also you can use our new VESA mount for amplifiers

VESA mount for amplifier
VESA mount for amplifier

Connection

To use two EEG amplifiers as one device you should connect them to PC via two nearest USB-ports or via KM-7-2 USB-hub (order code: DS042.02.01.001.000).

KM-7-2 USB-hub
KM-7-2 USB-hub

Also for recording EEG with two amplifiers from one patient , GND and REF sockets of each amplifier should be connected to the patient. To do this you can use two different electrodes for each amplifier, but it is more convenient to use special Y-adapter to connect to amplifiers and put on the patient only one electrode for GND and one for REF.

Y-adapter NS006103.019 for connecting two EEG amplifiers (REF anf GND)
Y-adapter NS006103.019 for connecting two EEG amplifiers (REF anf GND)

For NS-5 it is necessary to order:

  • Y-adapter NS006103.019-01 (code 241577): 2 pcs.

For NS-65 it is necessary to order:

Electrodes

For 64 and more EEG channels you can use:

Single cup electrode (NS245073)

Single cup electrode (NS245073)
Single cup electrode (NS245073)

Electrode cap

Electrode cap
Electrode cap

To order such electrode cap use this codes:

  • MCS cap PROFESSIONAL 64 (code 033-3-032);
  • MCS TP2KEL40F adapter (code 033-6-010).

Invasive EEG electrodes

Invasive EEG electrodes (grids)
Invasive EEG electrodes (grids)

Montages

Using EEG montage manager window you can create new montages both for scalp recording (according to "10-10%" system) and for invasive recordings. In derivation setting it is necessary to set amplifier number:

Montage editor window in 10-10% vew mode
Montage editor window in 10-10% vew mode

For example, to record TP7 derivation we use C4 channel of the second amplifier.

Also you can use table editor for the montage:

Montage editor window in table vew mode
Montage editor window in table vew mode

Recording

When amplifiers are connected, montage is created we can start new exam, put electrodes and start recording.

32 EEG channels
32 EEG channels
61 EEG channels
61 EEG channels

Conclusion

Special solution with two EEG amplifiers, connected and used as one device, can be useful for invasive EEG recordings and High-density EEG with up to 64-78 channels.