| 摘要 |
An inhalation device utilizing a controlled oxygen concentration selected which entrains air to modify a source gas, such as pure oxygen at 100% down to different selected levels of lower oxygen concentrations with a high total gas flow being achieved for inhalation without being perpendicular to the breathing orifices and allowing eating and suctioning without interference thus maintaining a constant uninterrupted oxygenation supply during eating and or suctioning is provided, which is adapted for disposal adjacent a nose and a mouth of a subject, including a nose hood connected to a chamber. The chamber has a central portion defining a longitudinal axis oriented perpendicular to the nose hood. A mixing section delivers fluid to a first end portion of the chamber in a fluid flow path configured to travel in a direction along the longitudinal axis and exit from a second end portion, coaxial with the first end portion. The central portion defines an opening aligned with and facing the nose in a configuration such that the fluid is inhalable from the central portion to the nose without direct impact by said fluid to the breathing orifices. |
