EMG and other physiological signals are required for Gait, Sports, Neuro Biomechanics and Ergonomics studies. There are following systems available for the purpose.


MCS Biosignal Recording Systems and Accessories:

Medical Computer Systems is specialized in the design and manufacture of high-tech medical devices since 1993 year. Projects cover a wide spectrum of EEG equipment and accessories: clinical electroencephalography, EEG amplifiers for research, including multi-channel amplifiers (more than 160 channels), MR compatible EEG amplifiers, wireless EEG recorders, active EEG electrodes. Partners of MCS are leaders of EEG equipment for scientific research world market. MCS supports the international quality system ISO 9001, ISO 13485 and manufactures many products with CE marking for the demanding European market.

FLEXIBLE EEG ACQUISITION FOR CLINICS AND RESEARCHERS 

NVX is the DC amplifier with 24, 32 or 48 monopolar channels for electrodes and 4 auxiliary bipolar channels for sensors NeoSens. The device is used in training systems, clinical and scientific researches as a part of computer-based research system for short-term registration of the electro-physiological signals, primarily EEG. The amount of channels and presence of auxiliary channels depends of models. 

Basically NVX amplifiers is used with NeoRec application software. NeoRec is software for the acquisition of EEG and other biomedical signals during the process of scientific or medical research. The program records the signals in various file formats for further analysis and processing by third-party software. 

Supported file formats: EDF+, BDF+, GDF, EEG, SM. For viewing or processing the recorded data, the following third-party programs and software packages are recommended: EDFbrowser, Polyman, SigViewer, EEGLAB, ERPLAB, OpenViBE, BioSig.

For Real-time access/control of data stream from amplifiers into Matlab/C++/Python/OpenVIBE for BCI and Neuro-Cognitive experiments, support for Open Source, Lab Steaming Layer ( https://github.com/sccn/labstreaminglayer ) is available.

AVAILABLE MODELS 

  1. NVX24 with EEG DC monopolar channels, 1/1 input/output triggers
  2. NVX36 with 32 EEG DC monopolar channels, 4 DC AUX bipolar channels for probes, 9/1 input/output triggers, OLED display 
  3. NVX52 with 48 EEG DC monopolar channels, 4 DC AUX bipolar channels for probes, 9/1 input/output triggers, OLED display 

SPECIFICATION 

  NVX 24 NVX 36   NVX 52 
 EEG DC monopolar channels 24 36 52
 AUX bipolar channels  -4 halvanic isolated from EEG for probes 4 halvanic isolated from EEG for probes 
 TTL triggers 1 input / 1 output 9 input / 1 output 9 input / 1 output 
  Display -Graphic OLED  Graphic OLED  
 EEG dynamic range±400 mV ±400 mV  ±400 mV  
 EEG channel’s input impedance more than 100 MOhm @ DC more than 100 MOhm @ DC  more than 100 MOhm @ DC 
 EEG channel’s noiseless than 0.9 uV p-p @ 0,1...30 Hz  less than 0.9 uV p-p @ 0,1...30 Hz  less than 0.9 uV p-p @ 0,1...30 Hz   
  EEG test signal  200 μV (±1%), 1 Hz200 μV (±1%), 1 Hz 200 μV (±1%), 1 Hz 
 Electrode impedance measurement range 1...120 kOhm (±10%) @ 30 Hz1...120 kOhm (±10%) @ 30 Hz 1...120 kOhm (±10%) @ 30 Hz 
 AUX channel’s dynamic range 0...4 V0...4 V 0...4 V 
  AUX channel’s input impedance  more than 100 MOhm @ DC more than 100 MOhm @ DCmore than 100 MOhm @ DC 
 AUX channel’s noise less than 15 uV p-p @ 0,1..30 Hzless than 15 uV p-p @ 0,1..30 Hz less than 15 uV p-p @ 0,1..30 Hz 
 AUX probe powering +5 V (±5%). Up to 15 mA per probe with electronic protection+5 V (±5%). Up to 15 mA per probe with electronic protection+5 V (±5%). Up to 15 mA per probe with electronic protection
 Digitization Resolution  24 bit, 6th order delta-sigma modulator with 64x oversampling, one converter per each channel  24 bit, 6th order delta-sigma modulator with 64x oversampling, one converter per each channel   24 bit, 6th order delta-sigma modulator with 64x oversampling, one converter per each channel  
 High-pass response  DC coupled and digital filtration by application software  DC coupled and digital filtration by application software DC coupled and digital filtration by application software 
 Sampling rate 125, 250, 500, 1000, 2000 Hz @ all channels 5000 Hz @ 24 EEG monopolar or bipolar channels 10000 Hz @ 16 EEG monopolar or bipolar channels 50000 Hz @ 4 EEG monopolar or bipolar channels  125, 250, 500, 1000, 2000 Hz @ all channels 5000 Hz @ 24 EEG monopolar or bipolar channels 10000 Hz @ 16 EEG monopolar or bipolar channels 50000 Hz @ 4 EEG monopolar or bipolar channels  125, 250, 500, 1000, 2000 Hz @ all channels 5000 Hz @ 24 EEG monopolar or bipolar channels 10000 Hz @ 16 EEG monopolar or bipolar channels 50000 Hz @ 4 EEG monopolar or bipolar channels  
 Control and poweringfrom USB +5V, 450 mA  from USB +5V, 450 mA  from USB +5V, 450 mA  
 Safety   IEC 60601-1, IEC 60601-2-26, class IIa, type BF IEC 60601-1, IEC 60601-2-26, class IIa, type BF  IEC 60601-1, IEC 60601-2-26, class IIa, type BF 
  Size  200 x 155 x 40 mm  200 x 155 x 40 mm 200 x 155 x 40 mm  
 Weight less 650 gr less 650 gr less 650 gr

EEG Accessories-CAPS. Ag/AgCl Electrodes, Digitizer etc.


MCS CAPs 

MCScap is system of the textile EEG-recording cap with removable electrodes placed according to 10-20 or 10- 10 systems and set of passive Ag/AgCl electrodes for EEG registration. 

The cap is made of elastic material that provides the most comfortable fit of the electrodes without additional adjustment and minimizes the number of caps for all possible head sizes. Numerous holes are intended for ventilation and electrode alignment to head. 

MCScap combines the advantages of textile caps with possibility of easy reconfiguration and replacement of broken electrodes. Ag/AgCl sintered technology of sensors guaranties minimal polarization and long-term stability. 

MCScap can be used in clinical practice, neurology and functional diagnostics, and also to scientific researches. 

Sintered AG/AgCl Electrodes

There are 2 types of MCScap electrodes:                                                               
  1. Point electrode MCScap-E
     
  2. Thin (cup) electrode MCScap-T - MCScap-T – is a new flat (D12*4) and lightweight (<1gr) EEG electrodes. Primarily the electrodes are designed for long-term registration, requiring maximum comfort and stability, such as EEG monitoring, somnografiya, biofeedback. Attaching electrodes to the head is possible with: - Conductive paste, - EEG cap MCScap-T, - Disposable adhesive rings through the ring-adapter. 

BIOMEDICAL AUX SENSORS

FPSens - photoplethysmography sensor on finger 
TRSens - respiration nasal thermometric sensor 
GSRSens - galvanic skin resistance sensor 
AXSen - 3-axis accelerometer with a choice of axes and amplification VGAsens - TTL output optical sensor for synchronization

3D Digtizer- for digitizing 3D electrode positions on scalp and head shape for accurate source localization.

Patriot, Fastrak or Liberty 3D Digitizers can be used to digitize 3D eeg electrode or fNIR system's optodes positions on scalp and also for head shape digitizing for accurate source localization in EEG/ERP studies. Digitized electrode head positions and ahead points can be exported in many standard formats compatible with popular EEG/ERP analysis softwares like Neuroscan, EEGLab, CAR Tools etc..

Delsys makes premier technology Physiological Signal recording systems and sensors that are artifact free and reliable. There are following models:
Trigno:
Trigno is the new face of Electromyography! This revolutionary hybrid EMG/ Movement sensor with
motion artifact suppression (Patent Pending) provides an unprecedented combination of data in a reliable manner. This new design delivers the unchallenged high-quality performance expected from Delsys products. Now you may have freedom of movement and freedom from recording noise sources in one package.
Features: 
    • Patented Parallel-Bar technology guarantees high fidelity signals 
    • Multi-function design embeds Triaxial Accelerometry in each sensor
    • 16 EMG channels, 48 accelerometer channels 
    • Patent Pending Motion Artifact Suppression 
    • Selectable +/-1.5g or +/-6g range 
    • 64 Ch. of Real-time Analog Output for Motion Capture integration 
    • Guaranteed performance to 40m 
    • 37mm x 26mm x 15mm 
    • 8 hours of operation in full transmission mode 
    • 2-hour recharge time 
    • 16-bit resolution, 4000 Hz sampling rate 
    • Compatible with EMGworks software 
    • USB Connection to PC (laptop or desktop) 
    • <500us inter-sensor latency 
    • Real-time feedback of signal strength & battery status
  1. Surface EMG Sensors: 
    Delsys has been at the forefront of innovative developments in electromyography since 1993. Parallel-bar EMG Sensors establish the foundation for unmatched signal quality, consistency and reliability in Delsys EMG Systems. A pioneer in the field, we are committed to furthering the technology and the applications of electromyography through novel sensor designs and EMG signal detection concepts.
    • Single Differential and Double Differential models 
    • No gel or skin preparation necessary 
    • Can be affixed to skin or used as a probe 
    • Convenient adhesive skin interfaces 
    • Slim profile for unobstructed usage
  2. Bio Signal Sensors: 
    Expand the capabilities of Delsys Bagnoli and Myomonitor EMG Systems to include additional physiological measurements
    in synchrony with EMG recordings. All Delsys Biosignal Sensors plug directly into EMG channels and conform to the same exacting standards as EMG Sensors. All body-worn sensors are medical grade, require no additional components and are fully compatible with EMGworks Software.
    • Foot Switches
       
    • Goniometers
       
    • EKG Sensors 
    • Respiration Sensors
  3. Accessories:
    • Trigger Output Module (Wireless) 
    • Analog Output System for the Myomonitor 
    • Trigger Module
    • EMG Works Software

    Delsys.pdf, Bagnoli.pdf, Myomonitor.pdf, Trigno.pdf, EMG Works.pdf, Biosignal.pdf, EMG Sensors.pdf, Data Acquisition.pdf

FNIR System

Functional NIRS equipment Spectratech OEG-16H

Spectratech OEG-16H is designed to simultaneously measure a change of the amount of blood in each in vivo part not so deep in by the multi-channel (up to 16 channels) method. It utilizes the light absorption characteristics in the neighborhood of near infrared to red light that changes with the bonding state of the in vivo hemoglobin (Hb) with oxygen. The spread spectrum modulation method that is the latest digital technique and originally developed by our company is adopted for the optical modem technology that underlies the equipment. It has achieved great reduction in costs, downsizing, and high performance compared with the conventional technologies. It is assumed that the equipment is used mainly on the frontal lobe part that has few hairs. So, a simple and non-invasive measurement is possible, and it is also considered to use it for a battery-powered mobile measurement system, and simultaneous measurements for multiple examinees. 

In addition, the equipment has been developed consistently for research purpose, so you are kindly requested not to use it for other purposes. 

The equipment can be used in stand-alone mode, or by connecting with PC with a USB port and Microsoft Windows 7 or 8 installed.

Specifications:

Spectratech OEG-16H-01 Head Module 

1) Light emitting part Six units equipped Built-in type LED with two waves (Wavelength 1: 840nm 2: 770nm) Output power: 5.0mW/770nm, 5.0mW/840nm max. on surface of light emitting part Safety of lamps and lamp systems : IEC 62471 Exempt
 
2) Light-receiving part Six units equipped Si PIN photo diode with visible light cutoff filter
 
3) Number of simultaneous measurement channels 16 channels
 
4) Distance between light injection part and optical light-receiving part 3cm

Note: The head module is assumed to use on the frontal lobe part that has few hairs. It is not recommended to use it on other part. In addition, even if it is measured on the frontal lobe with little hairs, the device’s sensor may not sense because some of the examinees might have extremely weak signals. Please be forewarned. 

Spectratech OEG-16H Main unit 

1) Measuring method of biological signal Based on the modified Beer-Lambert Law Hb change (ΔCoxy・L, ΔCdeoxy・L, ΔCtotal・L) Unit: mMol・mm Apparent SpO2 (Apparent arterial oxygen saturation) Unit: % 

2) Optical multi-modulation method Modulation method: Spread spectrum modulation DS (Direct Sequence) method Note 1 PN CODE: M-sequence code (Code length: 65535 bits (Max)) Effective bandwidth of biological signal: Fine Mode: 0.76 Hz (Sampling interval: 0.65535sec) Fast Mode: 6.10 Hz (Sampling interval: 0. 08192sec) 

3) Event input function It can input an event trigger manually at an appropriate time using the accessory box (Spectratech OEG-16-05 with entry acknowledge LED). 

4) External trigger input function (1) It equips two systems of the photo-isolated “external trigger input block” to work cooperatively with external devices. It is connected with external devices via BNC cable for external signal input (Spectratech OEG-16-04 accessory). It accepts the usage in both the external event trigger and external measurement/record start trigger. Input condition: TTL level (Isolated by photo-coupler in the main unit) Note 2 (2) Possible to input from other PC via Network (Use of UDP protocol) Details of how to use from Network are described in §6 and §7 in Applied Technology Edition. 

5) Measurement time (1) AC power supply Continuous measurement: Up to about 10 hours (Fine Mode) Up to about 2 hours (Fast Mode) (2) Battery operation Continuous measurement for up to about 1 hour 

6) Connection with PC It is connected with PC with a USB port, and Windows 7 (32Bit OS or 64Bit OS) or Windows8 via the USB cable for PC connection (Spectratech OEG-16-06 accessory). And, Installation software (Spectratech OEG-16H-07 accessory) is installed so that PC can output various commands, and record or display the measurement data received. As for PC performance, Intel I5 CPU or above, and 4GB main memory or above are required. 

7) Built-in battery For main part of Main unit: 4 x AA battery (Continuous operation for about 1 hour) For photo isolation part: 2 x AA battery (Continuous operation for about 6 months) For internal clock: CR2032 Lithium battery (Continuous operation for about 3~5 years) 

8) The latest firmware can be downloaded from our website as needed. 

Note 1: 

The DS (Direct Sequence) method is one of the spread spectrum signal generation methods, called direct diffusion method as well, and modulates by using the random numbers called spread code sequence (PN sequence). In addition, there is FH method (Frequency Hopping) method. 

Note 2: TTL input means +3~+5V digital signal input at high impedance.