A family of Electroencephalograph-Analysers: with 8, 16, 19 or 24
EEG-inputs (32 digital channels and 2marker channels) plus
photo-,
video-, audio-, and electric stimulation and patterned video
stimulation outputs. Optionally, up to 6 polygraphical (ECG, SCG, SGR,
EMG, EOG, PPG, CHD, RESP, TEMP, etc.) inputs and up to 6 timeshared
rheoencephalographical (REG) inputs
Hospital or mobile system design with battery supply for
emergency care and extremal situations service
High-quality data analysis and representation under Windows XP.
Continuous recording and check-up of ultra-slow scalp potentials
and electrode impedances
Convenient tools of visual EEG analysis including re-montage,
split-screen review of EEG data, fast data scrolling,
automatic artefact detection and rejection capabilities, 2D/3D mapping of
EEG parameters in the Toposcope mode, etc
Comprehensive mathematical signal processing and analysis
including spectral analysis (autocorrelation, cross
correlation,
coherence, etc.) and statistical analysis, with
topographical mapping of all data
Analysis of functional asymmetry of EEG parameters with estimation of the degree of intra- and interhemispheric
relationships
Automatical finding of epileptiform and transient
events with marking-up of the transitory segments in
long-term monitoring studies
A unique opportunity of concurrent recording and
analysis of electroencephalograms (EEG),
impedance plethysmograms (REG) and ultra-slow
scalp activity (electrode impedances and slow
potentials).
Automatical report generating with classification of EEG activity and manual editing of the report
3D source localization of abnormal EEG sites
Late-latency EPs, somatosensory EPs, cognitive EP (CNV and P300), MMN and
pattern stimulation
studies
Long-term Video/EEG monitoring of a patient's state
Sleep EEG studies and objective psychophysiological
testing intended for occupational care and
psychophysiological research, based on an optional
in-depth analysis of the polygraphical signals
Electronic Card Index (patient database) for running,
editing and printout of patient and hospital documents,
with convenient data exchange via a hospital information system
The Electroencephalograph-Analyser is intended for functional diagnosis, neurology and psychiatry
departments, post-operative recovery rooms and neurological intensive care units in the neural
diagnostic and rehabilitation centres and hospitals in a wide scope of clinical, educational and research
applications
Complete set of "Encephalan 131-03" (depending on version/modification)
Patient Box: a recording box with a corresponding set of inputs.
Desktop Holder or Mount Pillar for fixing a patient box/peripherals.
IB-2-USB Interface Unit (communication unit between a patient box and PC).
Software-controlled Photo and Audio Stimulators (2 stimulating channels each), Electrostimulator, Videostimulator and
3-button Remote Patient Terminal.
Set of EEG, ECG, EMG, EOG, SGR, PPG, and PG electrodes and accessories.
Application Software, Procedure Guide, and Help System under Windows XP
Pentium IV 2 GHz or better, 17" Monitor, Printer (Notebook PC for mobile applications)
Specifications
Digital Signal Processing: 22-bit ADC, RS-133, ADSP-2181 microprocessor
Sensitivity: 0.1 - 200.0 uV/mm (in 21 steps) for EEG and EP; 0.02 - 5.0 mV/mm (in 8 steps) for Ultra-
Slow Potentials; 0.02 - 1.0 kOhm/mm (in 21 steps) for Electrode Impedances
Time Constants: 10.0, 3.0, 1.0, 0.3, 0.1, 0.03, and 0.01 sec
High Frequency Filter (HFF): 0.016, 0.05, 0.16, 0.5, 1.6, 5.0, and 16.0 Hz
Low Frequency Filter (LFF): 5.0, 15.0, 30.0, and 70.0 Hz
AC Rejection Filter (50/60 Hz): 1:1000 or better
Automatic suppression of myographical
artefacts: 20 dB (30 Hz).
Ultra-low Noise Level: 0.9 uV(p-p) max
Common Mode Rejection Ratio (CMRR): 125 dB or better
Patient Isolation: MEC601-1, Class I, Type BF
Calibration: Square (1 Hz) or Sine (5 Hz) signal of 5, 10, 20, 50, 100, 200, 500, 1000, 2000,
4000 uV
REG Channel Sensitivity:
Total Impedance: 5.0 - 500.0mOhm/mm(7 steps),
First Derivative: 0.1 - 10.0 (mOhm/sec)/mm (7 steps)
Polygraphic Channel Sensitivity: 0.1 - 200.0 uV/mm (in 13 steps).
“Encephalan-131-03” Software Versions
Basic Version. Routine EEG studies with computerized analysis and topographical mapping.
Optionally, rheoencephalographical studies
Optimal Version. In-depth analysis of EEG/EP activity, analysis of epileptiform activity, differential
diagnosis, long-term EEG monitoring, combined assessment of EEG and REG data using integral
estimation of the brain activity and cerebral blood flow with REG-based topographical mapping of cerebral hemodynamic indices
Professional Version. Total analysis of cerebral activity (EEG, REG and ultra-slow scalp activity) with estimation of the degree of intra- and interhemispheric
relationships
Elite Version. Advanced capabilities for carrying out EEG studies by using state-of-the-art techniques of electrophysiological data processing with total analysis of EEG,
polygraphical, and ultra-slow cerebral activity. Automatical detection and suppression of ECG, EMG and EOG
artefacts, mathematical processing and analysis of
statistical data, data export in MatLab, EDF/UDF, and ASCII formats with a diverse spectrum of intelligent servicing tools
Elite-REG Version Same as "Elite" but with a full set of rheoencephalographic studies, concurrent EEG and REG visual analysis and integral assessment of
electroencephalographic activity and cerebral hemodynamics
