Cerebral function monitor "Encephalan-CFM"


cfm 1Dynamics of changes in brain activity, which cannot be traced during short-term EEG study, is clearly represented during continuous EEG monitoring in the form of amplitude-integrated EEG trends (aEEG), compressed spectrum and other CNS quantitative parameters, calculated by the signals received via few (3 to 5) EEG derivations.

Cerebral function monitor "Encephalan-CFM" is designed to solve the problem of risk assessment of brain damage associated with a lack of oxygen (asphyxia), low cerebral perfusion, and with paroxysmal brain activity, which cause sensory, motor and cognitive dysfunctions of different severity particularly in newborns in intensive care units and is widely used in developed countries.

Cerebral function monitor provides continuous dynamic analysis of amplitude-integrated EEG (aEEG) for detection of perinatal asphyxia and epileptiform activity in neonatology, and for neurophysiological control in ischemic strokes and unconscious post-comatose states.

cfm 2aEEG patterns detected with cerebral functions monitoring have a characteristic appearance, corresponding to different normal and pathological states of the brain, which allows assessing the severity of hypoxic-ischemic disorders, identifying seizure activity, monitoring the dynamics of the patient state at drugs administration and predicting neurological outcome.

The sales package of Cerebral function monitor "Encephalan-CFM" includes autonomous patient transceiver-recorder ABP-5, doctor’s PC, "Encephalan-CFM" Software (detailed description), wireless pulse oximeter module, EEG electrodes and other accessories.

Monitor "Encephalan-CFM" can be delivered in mobile and portable variants. All equipment and the notebook from the portable variant can be placed into the notebook carry bag. Computer, monitor to display information, printer to document monitoring results, videomonitoring kit, and components of CFM monitor (patient transceiver-recorder, additional devices, sensors, gel, accessories) form the mobile variant and are placed on the comfortable equipment trolley.


Main technical characteristics of autonomous patient transceiver-recorder ABP-5


 Number of EEG channels

 Number of bipolar EEG derivations with ECG and EOG channels  2
 ADC resolution  24 bit
 Maximum AC input voltage before clipping  ≥ 8 mV (peak-to-peak)
 Noise voltage, µV

 ≤ 1,5 µV (peak-to-peak)

 Sensitivity  0,1….200 µV/mm (or wider range)
 Common-mode rejection ratio (CMRR)  ≥ 120 dB
 Input Impedance  ≥ 200 MΩ
 Electrode impedance registration range  0-50 kΩ (or wider range)
 Weight  ≤ 200g
 Size  90x60x25 mm (W x H x T)
 Wireless telemetric BlueTooth-channel is meant for data transition from autonomous patient transceiver-recorder, wireless devices and sensors to PC 
 HPF (high pass filter) and LPF (low pass filter) setting    
 Continuous record and control of electrode impedance and electrode potential during EEG record
 Defibrillator proof is provided when using cup or disposable electrodes during EEG monitoring
 Power – 2 rechargeable Ni-MN (or alkaline) AA batteries


Main functional capabilities of "Encephalan-CFM" software


Forming amplitude-integrated EEG trends (aEEG)

aEEG is a special algorithm for processing and visualization of EEG meant for continuous monitoring the dynamics of the EEG amplitude.

The following is also displayed on aEEG trends:

  • A graph of aEEG suppression manifestation is lower than minimal threshold of aEEG amplitude.
  • Classification of aEEG patterns.

The following is calculated and displayed below aEEG trend:

  • aEEG events panel – "burst", "suppression" and "remains".
  • A graph of aEEG bursts dynamics.
  • A graph of aEEG suppression dynamics.


cfm 3   cfm 4
"Encephalan-CFM" interface

aEEG trend with graphs of aEEG 
events dynamics


Channels configuration library allows using

  • Simplified 1-channel variant (for cerebral functions monitoring in newborns).
  • 2-channel bipolar montages with an common sagittal electrode or separated by hemispheres EEG derivations and combinations of these montages with ECG, EMG and EOG signals.
  • 4-channel monopolar montages, which allow conducting reference reconstruction.

Additional types of analysis and visualization of amplitude-integrated EEG trends (aEEG)

  • Trends of density spectral array for operative evaluation of spectral content dynamics and EEG power.
  • 3D presentation of compressed spectra.
  • Trends of spectral power indices by range (SPIR).

    cfm 5 cfm 6

    Example of cerebral function
    monitoring in the infant with
    hypoxic-ischemic encephalopathy


    Distribution of spectral indices
    cfm 7 cfm 8
    Density spectral array Compressed spectral array


    EEG analysis and service options

    Functional capabilities of "Encephalan-EEGR" software:

    • Visual analysis of current EEG changes during monitoring.
    • Electrode impedance and cross-electrode potential control and record during electrodes attachment, real EEG record and for subsequent analysis.
    • Manual and automatic markers setting during EEG record and analysis. Markers are displayed in a special window for quick switch to corresponding record fragment.
    • Data printing. Print manager allows easily preparing and printing analysis results of cerebral functions monitoring, results in tabular and graphical form, and conclusions.
    • Storage of studies in the "Cardfile" database with the ability to export and import studies, as well as data backup to external media.


    Please contact us to receive full quotation, catalogues and price-list with your personal conditions.

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    Skype: tenmed1


    Simultaneous cerebral functions monitoring in 4 patients


    cfm 9


    Option of simultaneous cerebral functions monitoring in several patients in ICU.

    Data on each patient are displayed in a specified window. Any window may be displayed in full-screen mode for detailed analysis. Option of videomonitoring synchronized with brain electric activity monitoring.

    Information of patient transceiver-recorder (up to 4 pcs) is transmitted via wireless channels to central station.



    Optional capabilities of video- and neuromonitoring


    Videomonitoring synchronized with recorded data (videomonitoring kit and software "Encephalan-Video" are required) allows detecting movement and seizure activity that is important for differential diagnosis of the CNS functional state and detection of epileptiform activity.

    Optional "Encephalan-NM" Software allows observing trends of such diagnostically significant parameters as median and weighted average frequency, spectral edge frequency, effective bandwidth, asymmetry index and others, synchronously with CFM trends.

    Additional wireless modules and sensors expand a set of trends with such parameters as heart rate, breathing frequency and depth, muscle tense, movement activity, etc.


    cfm 10 cfm 11
    Synchronous cerebral functions
    and neuromonitoring
    Synchronous cerebral functions
    and EEG videomonitoring


    Optional software


    • "HRV" Software for Heart Rate Variability Analysis provides evaluation of autonomic nervous system (ANS) state on the basis of HRV analysis.
    • "Encephalan-EP" Software for EP-studies provides long latency evoked potentials (EP) studies to stimuli of different modality (visual, auditory, somatosensory) with stimulators.
    • "Encephalan-MPA" software for multiparameter analysis of signals from polygraphical channels in combination with EEG signals (if additional wireless devices and sensors are purchased).
    • "Encephalan-AVS" Software Suite for EEG and EP Studies Using Audiovisual Stimulation. Software provides flexible generation and playback of scenarios of cognitive stimulation using graphic images, audio files and text information as stimuli.
    • "Encephalan-VLFA" Software for Analysis of Very Low Frequency Activity. Software provides analyzing of very slow EEG responses simultaneously with recording of EEG by the same derivations.

      Please contact us to receive full quotation, catalogues and price-list with your personal conditions.

      Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

      Skype: tenmed1