Orion
Micromedical by Interacoustics
Rotary chair testing made versatile
A solution for every clinic’s needs
Rotary chair testing is an objective assessment of vestibular function. The VisualEyesTM platform integrates with the Orion chairs for advanced vestibular evaluations.
Choose between Orion Auto-Traverse, Orion Comprehensive and Orion Reclining.
The benefits of rotary chair testing
Many people experience some form of dizziness or imbalance during their lifetime. As there are a wide variety of symptoms, as well as duration of symptoms, it is extremely important for the balance clinic to have the right assessment tools
to meet the needs of adult and pediatric patients with dizziness.
Rotary chair testing has the advantage of allowing us to evaluate the vestibular system over a wide range of frequencies. This provides clinicians with a more comprehensive insight into the vestibular system by encompassing physiological stimuli in which normal head movements occur.
The gold standard
Rotary chair testing is the gold standard for confirmation of suspected bilateral vestibular hypofunction but can also aid in the diagnosis of unilateral peripheral vestibular loss due to its high sensitivity at 0.01 Hz. With three different chair options, Interacoustics has the right fit for your patient population and needs.
Vestibular testing in pediatrics
Pediatric assessment of the vestibular system can be challenging, but rotary chair testing is a well established and well tolerated procedure for this population. Interacoustics has taken great care to incorporate pediatric modifications to our rotary chairs to help clinicians effectively evaluate infants and pediatrics with confidence.
Orion Auto-Traverse
Rotary chair with off-axis centripetal acceleration
The Auto-Traverse Chair is a state-of-the-art enclosed rotary chair, engineered to deliver precisely controlled stimuli and superior data analysis of the VOR. The innovative Auto-Traverse Chair offers maximum acceleration up to 200 deg/sec2 and can accommodate for patient weight up to 180 kg/400 lbs.
A comprehensive test battery
The Auto-Traverse test battery provides the clinician with advanced protocols, which can be customized to meet the needs of a diverse patient population from infants to adults:
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Sinusoidal Harmonic Acceleration (SHA) from 0.01 – 1.28 Hz
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Step Velocity Testing up to 350 deg/sec
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VOR Suppression Test from 0.01 – 1.28 Hz with built-in laser fixation target
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Visual VOR Test, utilizing built-in optokinetic drum to enhance the VOR
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Static and dynamic subjective visual vertical (SVV) tests
Pediatric add-on package
The pediatric add-on package allows
for even more versatility with the Auto-Traverse chair. The package includes a car seat adapter for testing of infants, along with an in-booth observation camera to provide the clinician with
the ability to see the infant’s eye movements for situations when the goggle cannot be placed on the child’s eyes.
Additionally, the pediatric package includes a small face goggle with a monocular USB camera that is ideal for tracking eye movements in young children that cannot fit in the traditional binocular goggle.
Dynamic assessment
The off-axis centripetal acceleration offered with the Auto-Traverse chair provides for advanced dynamic assessment of eccentric otolith function with the dynamic subjective visual vertical (SVV) test of perceived tilt:
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300 deg/sec velocity, on or off-axis
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Computer-controlled step motor provides up to ±7 cm lateral movement from center axis
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XY-axis laser-projected line
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Handheld remote control allows the patient to adjust the laser line in 0.1 ̊ increments to their perceived vertical
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Customizable protocol – set desired line offset and number of trials
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Completely darkened environment for the most accurate SVV otolith assessment
Full-field optokinetics
When combined with VisualEyesTM 525 VNG, the Auto-Traverse Chair offers a true full-field oculomotor experience. Perform full-field optokinetics with the built-in optokinetic drum, along with optokinetic after nystagmus (OKAN), to measure your patient’s optokinetic velocity storage. You can perform horizontal and vertical saccades, and smooth pursuit and gaze testing, with the in-booth XY laser projector.
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