Nasal resistance testing device and method

Abstract

The invention discloses a nasal resistance testing device and method, and relates to the technical field of medical equipment. An airway connection device is connected with a respiratory flow detection device and a pressure detection device separately, the pressure detection device is connected with a data processing device, and the nasal resistance testing device is used for detecting nose ventilation conditions when people breathe. By putting a ventilation pipe C into a mouth of a patient, bilateral nasal resistance can be tested through nasal respiration; by putting the ventilation pipe C into the mouth of the patient and using a nose plug to plug one nasal cavity, the nasal resistance of the other nose cavity can be tested; and by connecting the ventilation pipe C with the nose plug and putting the nose plug into one nose cavity, the patient closes the mouth, and the nasal resistance of the other nose cavity can be tested. Pressure sensors are used for measuring a pressure difference value of anterior and posterior nasal cavities and a pressure difference value of the two sides of a respiratory flow sensor, the respiratory flow sensor is used for measuring a respiratory flow value, and the nasal resistance is calculated by utilizing related airway resistance algorithms. The nasal resistance testing device is simple in structure, convenient to use and easy to disinfect and needs few consumables.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a device for testing nasal resistance, in particular to a nasal resistance testing device and method. Background technique [0002] At present, most of the preoperative evaluations of patients rely on the clinical experience of rhinologists, and lack of objective basis. The understanding of nasal diseases by rhinoscopy, endoscopy, laryngoscopy and imaging examinations is mainly reflected in the observation of morphology. Ventilation function assessment is rare. On the other hand, the cost of rhinoscopy, endoscopy, laryngoscopy and imaging examinations is high, and the radiation is large. Patients and their families have concerns to a certain extent. They cannot afford it economically and it is difficult to effectively objectively It can reflect the degree and nature of the patient's nasal obstruction, and there is no effective evaluation index in the treatment effect an...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the preoperative evaluations of patients rely on the clinical experience of rhinologists, and lack of objective basis. The understanding of nasal diseases by rhinoscopy, endoscopy, laryngoscopy and imaging examinations is mainly reflected in the observation of morphology. Ventilation function assessment is rare. On the other hand, the cost of rhinoscopy, endoscopy, laryngoscopy and imaging examinations is high, and the radiation is large. Patients and their families have concerns to a certain extent. They cannot afford it economically and it is difficult to effectively objectively It can reflect the degree and nature of the patient's nasal obstruction, and there is no effective evaluation index in the treatment effect and postoperative evaluation. Sometimes there is a difference between the patient's subjective feeling of nasal ventilation and the actual nasal resistance, so it is easy to cause medical contradictions and disputes. The ventilation resistance detection device objectively reflects the degree of nasal obstruction and has the function of comparing the curative effect before and after the operation, objectively reflects the effect of the operation, and can largely overcome the problem of discrepancy between the patient's chief complaint and the actual situation in clinical work, and effectively avoid the contradiction between doctors and patients

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