nasal mask

Abstract

A nasal mask (100, 100'), comprising a connector (10), a bent tube (20), a casing (30), a flexible mask casing (50), a support (60, 80) and a strap (70, 90). The bent tube (20) is connected to the connector (10), the casing (30) is connected to the bent tube (20), a plurality of protruding clamping positions (3311, 3313, 3333) and recessed fastening positions (3331) are arranged at intervals on the casing (30), at least a portion of the clamping positions (3311, 3313, 3333) and the fastening positions (3331) form at least two matching structures, the flexible mask casing (50) is arranged at the end of the casing (30) away from the bent tube (20), a cushioning structure (58) is arranged on the flexible mask casing (50), the support (60, 80) is detachably sleeved on the casing (30) and comprises a combining portion (61, 81) and a connecting portion (63) extending outwards from the combining portion (61, 81), the combining portion (61, 81) is provided with a combining hole (611, 811), and the combining portion (61, 81) of the support (60, 80) may be matched with at least one of the at least two matching structures of the casing (30) by sleeving the combining hole (611, 811) on the casing (30).

Description

technical field [0001] The invention relates to a respiratory nasal mask, in particular to a nasal mask used in conjunction with an air delivery system. Background technique [0002] In the treatment of sleep-breathing diseases such as obstructive sleep apnea, positive pressure ventilation therapy is generally used, that is, positive pressure gas is delivered to the patient's breathing airway through a breathing device. Such respiratory equipment usually includes a positive pressure ventilation device (CPAP, Continuous Positive Airway Pressure) or a bilevel positive pressure ventilation device (Bi-PAP, bilevel positive airway pressure), an air delivery tube, and a patient breathing interface. The breathing interface of the patient is generally a nasal mask or an oronasal mask. Nasal masks typically include fittings for connection to air delivery tubing, elbows, housings, flexible shells, straps, and brackets. The joint, the elbow, the casing and the flexible casing are con...

AI Technical Summary

Problems solved by technology

[0003] Commonly used nasal masks are in contact with people's mouth and nose, and wearing them for a long time will lead to reduced comfort

Moreover, the flexible shell of the existing nasal mask cannot better match the nasal contours of most patients. For example, the same nasal mask cannot meet the needs of patients with low and high nasal bridges of different ages at the same time, and its versatility is relatively low. Difference

In addition, the same nasal mask can only use the same bracket, and the installation method of the bracket is fixed, so that the wearing method of the nasal mask is single, which cannot meet the wearing needs of different patients

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