RETI-port gamma plus *****

RETI-port gamma

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  • Ganzfeld Q450 SC

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Electrophysiological Test Unit
RETI-port gamma

Pattern VEP + Pattern ERG + Flash VEP
ISCEV ERG, EOG Fast and Slow, mfERG    

The RETI port consists of the pattern stimulator unit and analyzer computer system. The bio signal amplifier includes a preamplifier near the patient. All patient data and the results are stored in the database. The bio signal and averaged curves from all channels can be displayed on the monitor. In the analyzer mode the system sets all markers and computes all defined parameters automatically.

The basic equipment already provides - in compliance with the ISCEV Standard - simple and rapid determination of PVEP and PERG. The software also ? allows computing latencies and amplitudes automatically.

In the EOG program provides visualization of saccades and online analysis of the amplitudes for right and left eye.
The Fast Fourier Transformation, OFF-Line Averaging, PreTrigger function are are among the advanced features of the system.        

The RETI-port features in brief:

  • Delivery with standard ISCEV programs
  • User can write own different programs
  • Bio signal and average result can displayed on screen
  • Automatic artefact elimination
  • All amplifier data are software-controller
  • Automated impedance test can start every time.
  • Easy graphical user interface with multiple independent windows
  • Offline averaging of single response
  • Multifocal Analyze each signal with N1, P1 marker, 2D, 3D groups and user groups
  • Many special mathematical features to calculate many different parameters,
  • FFT - Fast Fourier Transformation to analyze steady state results,
  • DSP - Digital signal Processing Filter
  • Database with backup on CDRW
  • All data can export to EXCEL for statistic analyze
  • Allow to analyze in Local area network
  • Compact interface technology in standard computers

Monitor stimulator unit :

  • High quality brand industrial PC-system
  • 19" TFT/ LCD monitor, luminance 80 cd/m²; high contrast
  • Pattern or strip position: full, half or quarter
  • Computer calculated the check size by input the angel in deg and minutes
  • Contrast controlled over the computer from 3% - 99%
  • Pattern reversal, appearance / disappearance
  • For work with children special pictures during the test

Operating unit:

  • Intel Core i5-650 / 3,2 GHz / 500 GB HDD / 2GB RAM
  • DVDRW for backup the database
  • Analog-digital-converter KPCI 12 bit
  • Windows XP
  • Keyboard, mouse
  • 19” TFT monitor
  • Operating table

New version coming soon!

  • ISCEV Standard
  • Full field globe D=400 mm; dimension: 400 x 360 x 540 mm
  • Adjustable chin rest, head band integrated
  • All function full computer controlled, USB connection
  • USB camera internal
  • Trigger input (TTL)
  • 1x Fixation LED 0° / 2 x EOG-fixation LED +/- 15°,D
  • Intensities of LED’s adjusted to backlight
  • Integrated loud speaker to increase attention of the patient

Stimulus: white flash - standard intensity 3 cds/m²

Interval    -40 dB to +5 dB in steps of 5 dB

Stimulus: color flash  - standard flash 3 cds/m²

royal blue (455 nm)  interval -50 dB to -5 dB in steps of 5 dB
blue (470 nm) interval -45 dB to  0 dB in steps of 5 dB
green (525 nm)  interval -45 dB to  0 dB in steps of 5 dB
amber (590 nm) interval -45 dB to  0 dB in steps of 5 dB
red (625 nm) interval -45 dB to  0 dB in steps of 5 dB
  - Pulse-width modulation (max. flash length = 5 ms)
  - Extended flash duration, 1 ms to 500 ms in 1 ms steps

Stimulus ON-OFF – all colours: 1ms to 1000 ms adjustable in steps of 1 ms

Background luminance: adjustable in 1 cd/m² steps up to

White 1000 cd/m²
Royal blue (455 nm)  100 cd/m²
Blue (470 nm)   200 cd/m²
Red (625 nm)  200 cd/m²
Green (525 nm)  500 cd/m²
Amber (590 nm) 750 cd/m²
  Simultaneous use of colour LED’s to generate other background colour

Option X: (Q450SCX)

Xenon tube for white high flash


  • 9,5 cds/m² ( +5 dB)
  • 30 cds/m² (+10 dB)
  • 95 cds/m² (+15 dB)

Please note:  New version coming soon!


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