Orion rotary chairs
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 VisualEyes™ 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:
- Sinusoidal Harmonic Acceleration (SHA) from 0.01 – 1.28 Hz
- Step Velocity Testing up to 350 deg/sec
- VOR Suppression Test from 0.01 – 1.28 Hz with built-in laser fixation target
- Visual VOR Test, utilizing built-in optokinetic drum to enhance the VOR
- Static and dynamic subjective visual vertical (SVV) tests
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:
- 300 deg/sec velocity, on or off-axis
- Computer-controlled step motor provides up to ±7 cm lateral movement from center axis
- XY-axis laser-projected line
- Handheld remote control allows the patient to adjust the laser line in 0.1 ̊ increments to their perceived vertical
- Customizable protocol – set desired line offset and number of trials
- Completely darkened environment for the most accurate SVV otolith assessment
Full-field optokinetics
When combined with VisualEyes™ 525 VNG, the Auto-Traverse Chair offers a true full-field oculomotor experience. Perform full-field optokinetics with the built-in optokinetic drum. You can perform horizontal and vertical saccades, and smooth pursuit and gaze testing, with the in-booth XY laser projector.
Orion Comprehensive
Providing insight into the complexity of the balance system
The Comprehensive Chair offers the same state-of-the-art features as the Auto-Traverse Chair, but without the off-axis centripetal option.
- Static subjective visual vertical (SVV) tests – for dynamic SVV, see the Auto-Traverse Chair
- Also ideal for clinics doing extensive pediatric assessments
Orion Reclining
Combining rotary chair testing with VNG
The Reclining chair is a unique and space-saving solution that is designed with the practitioner in mind. With no booth enclosure, the chair can be reclined to varying positions, allowing the clinician to perform the entire VNG test battery from the rotary chair, with no need to move the patient to another exam able or separate room.
The enclosure is in the goggles
With multiple goggle options available for this chair, you can efficiently obtain a light-tight seal and comfortable fit for your patients. All goggle options utilize USB high-speed infrared cameras with multiple pupil tracking options for the most accurate data analysis.
Limitless possibilities for customization
The Reclining chair utilizes the same VisualEyes™ 525 software software application as the other rotary chairs, with limitless possibilities for customization. It can achieve maximum velocity of 200 deg/sec and acceleration up to 200 deg/sec2, and accommodates for patients up to 150 kg/350 lbs.
Accurate caloric assessment and supine testing
You can recline the chair to precisely 30 degrees using the built-in angle gauge for accurate caloric assessment and recline the chair to a supine position for positional tests, Dix-Hallpike tests and canalith repositioning maneuvers. The easy-to-remove headrest makes it an ideal solution for Dix-Hallpike evaluation.
Test battery
- Sinusoidal Harmonic Acceleration (SHA) from 0.01 Hz to 0.64 Hz
- Step Velocity Test up to 200 deg/sec - VOR Suppression Test from 0.01 Hz to 0.64 Hz
- Visual VOR using the included large- screen monitor
- All oculomotor tests: gaze, smooth pursuit, saccades, Saccadometry and Optokinetics
- Positional and Dix-Hallpike tests - Caloric evaluation
Need support or training?
Check out the latest training material for the Orion rotary chairs.
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