Portable nasal respiratory function detection device

Abstract

The invention provides a portable nasal respiratory function detection device. The portable nasal respiratory function detection device comprises a nasal pressure difference sensor, a nasal airflow sensor, a host and a display and is in an integrated portable design, and the nasal pressure difference sensor assembly is provided with an olive-head nasal plug, a pressure measurement connecting hose and a pressure sensing trigger switch; the nasal airflow sensor assembly is provided with a sealing nasal mask, an airflow connecting sleeve and an airflow sensor; and the host and the display are provided with an analog-to-digital conversion and calculation display chip, a liquid crystal display panel and a control button, and the pressure sensing trigger switch is set to trigger and record an air flow value and calculate and display an airway resistance value when the nasal air pressure difference reaches 150Pa or 75Pa. A nasal inspiration flow rate peak value can be displayed, main pulmonary respiration function indexes such as forced vital capacity, forced expiration volume in one second and the numerical value of the maximum expiration flow rate can be calculated and displayed, and results can be recorded and printed through an image-text work station. Operation is simple, results are visual and accurate, manufacturing cost is low, and application and popularization are convenient.

Description

technical field [0001] The invention belongs to a medical device, in particular to a portable nasal breathing function detection device. Background technique [0002] Nasal respiratory function testing is to understand the degree of nasal ventilation and the degree of response to certain substances or drugs. Most nasal diseases will affect the respiratory function of the nose, resulting in nasal congestion, runny nose and poor nasal ventilation, or nasal congestion, runny nose, sneezing and other symptoms under the stimulation of certain allergens and physical and chemical substances. There are many detection methods for nasal breathing function. The simplest method is the exhalation board method. By exhaling on the mirror exhalation board, the size of the aerosol formed during exhalation is observed to evaluate the respiratory function and function of the nasal cavity on both sides. Patency. More complicated instruments include nasal acoustic reflexometer, nasal resistanc...

AI Technical Summary

Problems solved by technology

At present, the peak nasal inspiratory flow detection instruments introduced abroad mostly use mechanical methods, and no electronic sensor is used to detect the nasal respiratory function peak detection instrument.

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