Neuron-Spectrum-5for Neurophysiological Studies

Applications:

32 EEG channels (35 digital ampli�ers)Possibility of recording of any of 32 monopolar derivations

Separate ECG channel2 direct current (DC) channelsSpO channelBreath channel

2

Routine EEG

PolysomnographyScienti�c researches

Any electrode can be used as a referent one,and the bipolar derivations can be recoded withoutplacing any other additional referent electrodes.

Any Electrode Can Be Usedas a Referent One

What's New?

The impedance measurement mode can be switched onby pressing the button located on the front panel ofEEG electronic unit. The impedance values of all theelectrodes are indicated on the front panel by coloredLED indicators. The technologist who places theelectrodes on the patient, can measure the impedanceon the spot.

Button for Impedance MeasurementMode Switching on

The separate channel with Touch proof connectorsis provided for ECG recording. Now you can recordthe ECG without enganging one of the fourpolygraphic channels.

Separate ECG Channel

The SpO channel complements the set of channelsrequired for the comprehensive polysomnographystudies.

2

SpO Channel (Oxygen Saturation Channel)2

This is a special engineering solution allowing todecrease the common mode rejection at least in threetimes in comparison with the traditional schematic ofEEG amplification.

DRL Derivation

To connect the electrodes to the polygraphic channels,you can use either Touch proof or DIN�6 connectors.

More Convenient Commutationof Polygraphic Channels

Neuron-Spectrum Software Features

The software provides the EEGrecording on any digital EEG systemof series by 8�32 channels(up to 64 digital derivations).During the recording the monopolar, bipolar ormixed montages in «10�20» and «10�10» schemescan be used. Any polygraphic channels (ECG, EMG,EOG, breath ( flow, chest abdominal

e ), snoring, body position, legsmovement, SpO can be used.The montage can be switched at any moment:before the recording, during the recording, in theprocess of the EEG review and analysis after therecording.For the first time software providesthe possibility to apply the different parametersfor the different channels. For example, if you cannot delete the trend of EEG isoline in frontalderivations, you can specify the more high valuesof high pass filter only for these derivations.

You can change the parameters of any channelin the process of the recording.The software allows performing the functional testswhich are standard for EEG checkups (photicstimulation, hyperventilation, eye opening) Besides,you can perform other functional tests of anyduration and in any sequence. The flexiblepossibilities of stimulators programming areavailable.You can watch the process of EEG recording bothfrom the computer connected to the digital EEGsystem or computer connected to the same localnetwork. After the acquisition finishing, EEG can bereviewed in the «as recorded» mode.

Neuron-Spectrum

Neuron-Spectrum

Neuron-Spectrum

air andrespiratory fforts

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.

2

EEG Recording

Example of the report automatically generatedby software.Neuron-Spectrum

The records are stored in the database providingwide possibilities of search. The long recordscan be stored on CD or DVD. If necessaryto review the record on such a disk, the program willinform the user of the required disk to be installedin the disk drive. Besides, the recordscan be stored not only on the computer connected

to the digital EEG system but also on any remotecomputer (file server).

it is

EEG Storage

Selection of individual parameters for any derivation.

EEG with the derivationsnames, recording parameters can be printedon any computer printer.

with the standard grid,

EEG Printing

EEG recording mode.

EEG spectrum trend.Graphs of spectral and coherent EEG analysis results.

Amplitude analysis of EEG fragment.

The program allows totrends spectrum components, EEG indexes,amplitude parameters, HR, number and amplitudeof epileptiphorm activity phenomena,etc in any selected derivations.

In spite of the record duration all the trendis displayed on the one screen. At that you can switchon any doubtful fragment from the trendwindow by one mouse click!

Neuron-Spectrum displayof

EEG

Trends

The records can be analyzed with the use of the mostmodern techniques of mathematical analysis. Anyfragment of the record or the whole record(with the epoch division) can be processed.As far as the digital EEG systemsof series allow EEG recordingnot only in 35 Hz standard range but also in thewider frequency range, then not only standardranges (alpha, beta, delta and theta) but alsoany ranges specified by the user can be analysedat spectral analysis.

. The program allows mappingof practically any parameter: EEG amplitude andspectrum power, EEG amplitude and spectrumpower in a specified frequency range, rhythm index,etc.

is doneautomatically. In the result of search the programprovides the list of the detected phenomena andmapping of these phenomena distribution by scalp.The program provides the possibility of coherent andcross�spectral analyses performing and coherencemaps generating.After the EEG mathematical analysis the programallows creating the automatically generated EEGdescription in checkup report. Besides, the doctorcan edit the report at her/his discretion, add anypictures and graphs. At that you can usecomprehensive glossary.

Neuron-Spectrum

Mapping

Search of spikes and sharp waves

EEG Analysis

Automatic search of spikes and sharp waves.

Optional Software

Module allows performing the recording long�termsynchronous EEG and video from one or two videocameras controlled from the computer and audioinformation from one or two microphones.

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There are wide possibilities to store, review and editthe recorded data.

Neuron-Spectrum-VideoVideo Monitoring Module

Module allows recording long�latency auditory, visual(on flash and pattern), and cognitive EP by EEGchannels (up to 32 ones) with brain mapping withthe use both built�in and external stimulators.

Neuron-Spectrum-LEP Module

Module provides the possibility to study short�, middle,and long�latency auditory, visual, somatosensory andcognitive EP by 4 wide band polygraphic channels.�

Neuron-Spectrum-EP Module

The specifications of 4 polygraphic channelsof allow to perform the EMGstudies by the following techniques:

Surface EMG (spontaneous activity,interference curve)Stimulation EMG (M�wave, nerve conductionstudy, F�wave, H�reflex (also including pairedstimulation), T�reflex, blink reflex, magneticstimulation)Rhythmical stimulation (by impulse series,by user�defined algorithm, tetanization)Needle EMG (spontaneous activity, interferencecurve, motor unit potentials)

To perform the EMG, the digital EEG system can besupplemented by the magnetic stimulator,the dedicated keyboard, the footswitchand the tendon hammer.

Neuron-Spectrum-5

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Neuron-Spectrum-EMG Module

Module is intended for the heart rate variability analysis(HRV) with the use of data received from the ECGchannel built in the digital EEG system.

Poly-Spectrum-Rhythm Module

Poly-Spectrum-Rhythm module. .Spectrogram

Neuron-Spectrum-EP module. Recording and analysisof short�latency EP.

Neuron-Spectrum-EMG module. Stimulation EMG.

Neuron-Spectrum-PSG odule.m

Module allows performing comprehensivepolysomnography studies (sleep stages analysis,analysis of sleep ).disorded breathing

Neuron-Spectrum-PSG Module

Delivery Set

Speci�cations

EEG Channels Other Channels

General Parameters and Characteristics

Number of channelsSensitivity

High pass �lter

Low pass �lter

Sampling rateA/D converter

Suppression ratio of powerfrequency by notch �lter

Noise levelInput impedance

Number of channelsSampling rate per channel

High pass �lterLow pass �lter

SensitivityInput range

Number of channelsHigh pass �lterLow pass �lter

32

0.05, 0.5, 0.7,1.5, 2.0 Hz15, 35, 75, 100,150, 200 Hzup to 2000 Hz16 bitnot less than 1 0 dB

100 M

4up to 40000 Hz0 02 000 Hz10 10000 Hz10 10000 /mm0.5 100 mV

10.5, 0.7, 1.5, 2.0 Hz15, 35 Hz

10

, 10

140 dB

not more than . Vnot less than

V

0 8

Polygraphic Channels

ECG Channel

Breath channelSpO channel

Direct current channelPhotic stimulator

Trig in/outAuditory stimulator

Electrical stimulator

InterfaceSupply Voltage:

Electronic unit

Electronic unit powerconsumption

Electronic unit dimensionsElectronic unit weight

Delivery set weight (withoutcomputer and printer)

Safety

2

Delivery set dimensions

yes

USB

5 V DC220/230 V AC (50 Hz)220/230 V AC (50 Hz)/batterynot less than 2.8 VA

150 200 60 mm0.9 kg

mmnot more than 12.2 kg

BF type

yesyes channelsyesyesyesyesyes

(2 )

х х

350х440х170

* The use of other recording systems is possible

Electronic unit with a standLED photic stimulator with a standSet of accessories for EEG recording*:

Bridge or cup EEG electrode 21 pcs.Ear EEG electrode 3 pcs.Cable for bridge

and ear EEG electrode 25 pcs.Helmet for EEG electrode placement(big, medium, small) 3 pcs.CD with softwareUser manualTechnical manualRegistration certi�cateTransportation bag

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