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The caloric evoked nystagmus by irrigating of both ears with warm and cold air is an itegral part of the vestibular examination, as commonly done in the ENT office.
The comparative caloric test requires exact control and producibility of all parameters of the stimulus such as amount of air flow, temerature and duration of action of the stimlating medium. The VARIO Dry has been designed to meet these requirements.
The VARIO Dry provides a constant cold or warm air flow, with the air flow temperature being electronically controlled. A digital timer ensures exact reproductibility of the irrigation period.
The use of air as the caloric stimulus offers the distinct advantage that the caloric irrigation can even be conducted as a perforated tymanic membrane and that, furthermore, water supply and drain systems are not necessary.
Caloric stimulator VARIO Dry