Portable Electroretinography (ERG) Device
Electro-diagnostic instrument recording retinal electrical responses to light stimuli for diagnosing retinal diseases. HTS 9018.19.95.50 as other electro-diagnostic apparatus for visual pathway functional testing. Used in ophthalmology clinics for glaucoma and macular degeneration assessment.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If incorporating ophthalmoscopes for direct retinal viewing
Instruments combining diagnostic functions may fall under specific compound apparatus
If classified as spectrophotometer for clinical chemistry analysis
Optical instruments for chemical analysis sometimes overlap with physiological testing
If measuring optical properties rather than physiological responses
Measuring/checking optical instruments distinguished by Chapter 90 note 7
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Import Tips & Compliance
• Document Ganzfeld bowl uniformity and light calibration standards compliance
• Include patient comfort features like disposable contact lens electrodes
• Specify implicit time and amplitude measurement precision specifications
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Digital Electromyography (EMG) System
Electro-diagnostic device measuring electrical activity of skeletal muscles to diagnose neuromuscular disorders like carpal tunnel syndrome. Classified under HTS 9018.19.95.50 as other electro-diagnostic apparatus for functional physiological examination. Includes surface electrodes and analysis software for nerve conduction studies.
Biofeedback Stress Monitor
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Handheld Nerve Conduction Velocity Tester
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Ambulatory Blood Pressure Analysis System
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Evoked Potential Audiometer
Electro-diagnostic system measuring brain stem auditory evoked responses for objective hearing threshold assessment. Classified under HTS 9018.19.95.50 as other apparatus for functional neurological examination. Critical for pediatric and non-responsive patient audiology testing.