Oro-nasal patient interface

Abstract

A patient interface to provide breathable gas to a patient, comprising: a plenum chamber assembly, comprising: a nasal plenum chamber at least partly defining an upper gas chamber; an oral plenum chamber at least partly defining a lower gas chamber; and a decoupling structure at least partly connecting the nasal plenum chamber and the oral plenum chamber and at least party defining a flow path; a top plate including at least one connection feature configured to releasably retain a first portion of a positioning and stabilising structure; and a faceplate configured to releasably retain a second portion of a positioning and stabilising structure.

Description

1 CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 823,353, filed May 14, 2013, and U.S. Provisional Application No. 61 / 954,201, filed Mar. 18, 2014, each of which is incorporated by reference herein in its entirety.2 BACKGROUND OF THE TECHNOLOGY[0002]2.1 Field of the Technology[0003]The present technology relates to one or more of the diagnosis, treatment and amelioration of respiratory disorders, and to procedures to prevent respiratory disorders. In particular, the present technology relates to medical devices, and their use for treating respiratory disorders and for preventing respiratory disorders.[0004]2.2 Description of the Related Art[0005]The respiratory system of the body facilitates gas exchange. The nose and mouth form the entrance to the airways of a patient.[0006]The airways consist of a series of branching tubes, which become narrower, shorter and more numerous as they penetrate deeper into the lun...

AI Technical Summary

Benefits of technology

[0048]Another aspect of one form of the present technology is a patient interface that is moulded or otherwise constructed with a clearly defined perimeter shape which is intended to match that of an intended wearer. The patient interface system may have a reduced part count compared to currently available patient interface systems. The patient interface system may provide a visible mouth region of the patient if the faceplate is semi-transparent or transparent. The patient interface system is an oro-nasal mask meaning it covers the nasal airways a

Problems solved by technology

It often causes excessive daytime somnolence, and it may cause cardiovascular disease and brain damage.

It is possible that CSR is harmful because of the repetitive hypoxia.

In some patients CSR is associated with repetitive arousal from sleep, which causes severe sleep disruption, increased sympathetic activity, and increased afterload.

Symptoms include dyspnea, morning headache and excessive daytime sleepiness.

Some NMD patients are characterised by progressive muscular impairment leading to loss of ambulation, being wheelchair-bound, swallowing difficulties, respiratory muscle weakness and, eventually, death from respiratory failure.

Symptoms of respiratory failure in NMD include: increasing generalised weakness, dysphagia, dyspnea on exertion and at rest, fatigue, sleepiness, morning headache, and difficulties with concentration and mood changes.

Chest wall disorders are a group of thoracic deformities that result in inefficient coupling between the respiratory muscles and the thoracic cage.

Scoliosis and/or kyphoscoliosis may cause severe respiratory failure.

Symptoms of respiratory failure include: dyspnea on exertion, peripheral oedema, orthopnoea, repeated chest infections, morning headaches, fatigue, poor sleep quality and loss of appetite.

A range of patient interface devices are known, however a number of them suffer from being on

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