Abstract
AbstractA new caloric test irrigation handle incorporating a temperature sensor and flow control valve was found to provide temperature measurements which accurately represented temperature of the irrigation fluid. Fluid temperature within the handle was never more than .06° different from that in the nozzle tip, whereas bath temperatures ranged unpredictably between 0.12° to 0.46° higher. There was a delay of about 10 seconds between a step‐wise change in water bath temperature and the appearance of this change in the irrigation nozzle; there was no measurable delay between registration of temperature change in the handle and in the nozzle. A change of 1.5° in irrigation fluid temperature was found to be erroneously registered in the water bath as 1.8° but correctly registered in the handle.
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