Positive end-expiratory pressure nose ventilation device

Abstract

The invention provides a positive end-expiratory pressure nose ventilation device which comprises a rigid supporting piece, a left nose ventilation pipe, a right nose ventilation pipe, a left slice membrane-shaped bidirectional valve and a right slice membrane-shaped bidirectional valve. The rigid supporting piece comprises a left arched supporting portion, a right arched supporting portion and a connecting portion which is connected between the left arched supporting portion and the right arched supporting portion. The left nose ventilation pipe and the right nose ventilation pipe are made of soft elastic materials, and the outer surface of the rear end of the left nose ventilation pipe and the outer surface of the rear end of the right nose ventilation pipe are fixed to the left arched supporting portion and the right arched supporting portion of the rigid supporting piece respectively. The left slice membrane-shaped bidirectional valve and the right slice membrane-shaped bidirectional valve are fixed to the opening in the rear end of the left nose ventilation pipe and the opening in the rear end of the right nose ventilation pipe in a sealed mode respectively, and when inverted airflow passes through the two slice membrane-shaped bidirectional valves, passing time of airflow is prolonged by decreasing the passing area of airflow and increasing airflow resistance. The positive end-expiratory pressure nose ventilation device enables the nasal cavity to be kept smooth through the nose ventilation pipes and the rigid supporting piece, and enlarges the application range of a positive end-expiratory pressure ventilation method in clinic.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a positive end-expiratory pressure ventilation nasal device for conservative treatment of snoring and obstructive sleep apnea hypopnea syndrome. Background technique [0002] At present, obstructive sleep apnea-hypopnea syndrome (OSAHS) is considered to be a complex multifactorial disease, and the incidence rate of OSAHS in my country exceeds 5%. The narrow or easy collapse of the upper airway structure is the root cause of OSAHS. Depending on the location of the obstruction, OSAHS is divided into the following four types: [0003] Type I: the stenosis is above the nasopharynx (nasopharynx, nasal cavity); [0004] Type II: the stricture is in the oropharynx (at the level of the palate and tonsils); [0005] Type III: the narrowing part is in the hypopharynx (base of tongue, level of epiglottis); [0006] Type IV: All of the above parts have stenosis or there are more ...

AI Technical Summary

Problems solved by technology

[0010] However, the above nasal expiratory positive airway pressure nasal strips are limited to the treatment of mild and moderate OSAHS patients, and based on the treatment principle of this device, it is objectively required that patients should not use devices that interfere with oral or nasal breathing during treatment. And there is no disease that can cause nasal obstruction, such as severe allergic rhinitis, sinusitis, nasal dyspnea or nasal congestion, and OSAHS patients with the narrow part above the nasopharynx, and can not breathe after wearing nasal expiratory phase positive airway pressure nasal strips Routine polysomnography (PSG) and nasal airflow examination

In addition, nasal expiratory positive airway pressure nasal strips have only one nasal valve and one vent hole, and the resulting positive end-expiratory pressure is uneven and unstable, especially when the vent hole is blocked, which will lead to Difficulty exhaling, life-threatening

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