Rhinomanometry:I. Simple equipment

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Abstract
A rhinomanometer for clinical work and research is presented. It adheres to the principle that pressure and flow should be recorded X-Y wise. A storage oscilloscope is used and the tracing pencilled down on a preprinted diagram via an oscillotracer. Anterior and posterior rhinomanometry can be performed. In the former variety, one nostril is occluded and connected to the pressure transducer by an adhesive tape. This does not deform or irritate the nasal airway. A mask for anaesthesia connects the nose to the pneumotachograph. Miniature transducers mounted on the pneumotachograph provide mechanical advantages. Simple means that allow dynamic calibration of the rhinomanometer are described. The cost to set up and operate the equipment is low.

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