Ventilation mask

Abstract

A mask for the delivery of a medical gas under positive pressure, the mask including a single shell forming a chamber having an outlet, a first passage connecting the chamber to the exterior of the mask, a sealing recess isolated from the chamber and open to allow engagement with the face of a user, and extending around the periphery of the outlet, and a second passage connecting the sealing recess to the exterior of the mask, the arrangement being such that operatively the mask may be placed on a user so as to cover the airway, suction may be connected to the second passage so that the sealing recess seals the mask against the face of the user, and a medical gas may be supplied to the first passage for delivery through the outlet to the airway of the user.

Description

technical field [0001] The present invention relates to masks for delivering air or other gas to patients, especially but not limited to neonates. Background technique [0002] Face masks are used in various clinical settings, such as hospitals, to deliver air, oxygen or other medical gases to patients. In some cases, they are a relatively loose fit and are not required to maintain a seal against the face. [0003] In many cases, however, it is desirable to maintain a relatively tight fit. This is especially the case when gas is supplied to a patient under pressure, such as in a resuscitation situation. [0004] For example, neonatal resuscitation is often performed using relatively sophisticated, controlled sources of pressurized air and / or oxygen. This may include positive end-expiratory pressure and peak inspiratory pressure (PEEP and PIP) to aid in proper lung inflation and improve blood oxygenation. It is understood in the art that delivery of air at the correct pre...

AI Technical Summary

Problems solved by technology

However, these only provide general retention and therefore do not directly aid in sealing

Also, some users found the straps restrictive and even claustrophobic

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