| 摘要 |
An oxygen diffuser for a lightweight oxygen delivery system for a patient, t he oxygen delivery system being of the type comprising a mount for seated engagement on a patient's head or ear, an elongated tubular boom for oxygen delivery secured at one end to the mount and having the diffuser secured to the other end, the diffuser to deliver oxygen passed through the boom to a space in the vicinity of the patient's nose and mouth, the diffuser comprisi ng a body having a wall, the interior surface of which wall is of generally concave configuration, circumscribing a centrally positioned oxygen outlet s o as to direct the flow of oxygen from the outlet generally towards the patient's nose and mouth; and a baffle seated over the oxygen outlet so as t o assist in mixing of oxygen with ambient air and avoid a direct flow of oxyge n towards the patient's face. |
