Patent ID: 6837238

Claim:
A lightweight oxygen delivery device for a patient comprising: an oxygen diffuser connected to an oxygen supply tube, the diffuser comprising a body having a wall, an interior surface of which wall is of generally concave configuration with a triangular peripheral contour and rounded corners, to direct a flow of oxygen generally towards the patient's nose and mouth; a carbon dioxide intake formed of a concave-shape wall centrally secured within the diffuser body wall, the carbon dioxide intake filling a significant part of the interior of that body, such that the carbon dioxide intake blocks most of the oxygen diffuser but leaves the rounded corners of the triangular peripheral contours unobstructed to deliver oxygen out of the top rounded corner directing oxygen toward the nose of the user and leaves the bottom rounded corners of the triangular peripheral contours unobstructed to direct oxygen toward the mouth of the user; flexible wings secured to the tube, the wings extending outwardly to either side, and an elongated flexible strap secured to and extending between the wings, the strap, when the device is in operation, to extend around a patient's head and secure the wings in position to hold the diffuser proximal to the patient's nose and mouth.