Products
VHIT ULMER
VIDEO HEAD IMPULSE
VHIT ULMER
THE VHIT ENABLES TO TEST ALL 6 SEMI-CIRCULAR CANALS AT HIGH FREQUENCY AS WELL AS THE SACCADES STRATEGIES (OVERT AND COVERT).
MAIN ADVANTAGES
– Fast test : 5 minutes to test the 6 canals and detect saccades (overt and covert) and to obtain a complete and relevant analysis
– Non invasive test : no mask or device on patient’s head thanks to goggleless camera
– Independant analysis of the 6 semi-circular canals through fast head movements
– Simultaneous observation of eye and head movements thanks to goggleless camera
– Maneuvers simple to carry out : automatic detection of the tested canal and visual information given by software in real time + maneuver guide
– 2 scalable software versions : from VHIT SCREENING (lateral canals only) to VHIT EVOLUTION (6 canals)
– No disposable (because of goggleless camera)
DESCRIPTION
Combined to the VNG Ulmer that tests the lateral canals at low and medium frequencies, the VHIT enables to obtain a complete analysis.
CONNECTIVITY
Available on Windows PC.
STANDARDS
Class I medical device (European medical device directive 93/42/EEC)
Class II electric device
CLASSIFICATION
Not available in the US
EC conformity / EN 60601-1 / EN 60601-1-2 / IEC 62471-1
LAST SOFTWARE VERSION
– Ulmer Canalogram evolution
– New interactive graphs (gain/velocity, superimposed velocities)
– A new maneuver guide
– New printout reports
– Results of asymetry calculation of VOR gain
– Gain calculation zone indicator
RELATED PRODUCTS
VNG Ulmer
MINIMUM COMPUTER CONFIGURATION
Intel Procesor I5-xxx (3rd generation)
300 Gb of free space on hard disk
4 Gb RAM
Graphic card with dedicated memory (NVIDIA or AMD RADEON type)
One free USB 2.0 or 3.0 port
PRODUCT COMPOSITION
A scalable and intuitive software that enables adjustments of the camera and 3 usage modes (video, acquisition and rereading)
A remote camera ensuring comfort for the patient and freedom of movement for the practitioner.
TECHNICAL SPECIFICATIONS
VHIT Camera :
| Camera | Goggleless camera |
|---|---|
| Settings | Motorized adjustement : image sharpness, horizontal & vertical alignment of the camera |
| Power supply | 12 VDC |
| Weight | 6 kg / 13.26 lb (without cable) |
| Pc connection | 2.0 or 3.0 USB port |
| Sampling rate | Up to 100 Hz |
| Definition | 752 x 480 |
| Cell type | CCD 1/3 ‘’ |
| Sensitivity | <0.005 lux |
| Infrared lighting | Wave length : 830m Light cone : +/- 22 deg. per LED |
Elements included
– VHIT camera + base
– VHIT software (CD)
– User manual
– Power supply
– USB cable Packaging : suitcase
VHIT software :
| Modes | Video live, acquisition, replay (results) |
|---|---|
| Adjustments | Inter-pupillary distance, pupill size, acceleration threeshold |
| Protocole examination guide | Visual indicators, synthetic voice message |
| Detection of movements | Automatic (manual correction available) |
| Detection & analysis | High-frequency VOR Saccades strategies (overt and covert) |
| Graphs | Right / Left gaze, Head movements, Position, Velocity, Gain |
| Replay | Slow motion, key frame, slow motion showing gaze deviation, synchronized with graphs |
| Patient manager | Compatible with VNG Ulmer patient manager |
| Print report | Canalogram Ulmer, Results Table, VOR gain value, Saccades description, Eyes pictures sequence (PDF format save available) |
| Visual stimulation | Target projection (dots, random letters, cartoon pictures for children) |
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