(a) Identification.
         An air or water caloric stimulator is a device that delivers a stream of air or water to the ear canal at controlled rates of flow and temperature and that is intended for vestibular function testing of a patient's body balance system. The vestibular stimulation of the semicircular  canals produce involuntary eye movements that are measured and recorded by a nystagmograph.
     
    
        
        (b) Classification.
         Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of  part 807 of this chapter subject to  § 874.9.
     
    
        
            Code of Federal Regulations
        
        [55 FR 48440, Nov. 20, 1990, as amended at 65 FR 2316, Jan. 14, 2000]