| 摘要 |
<p>The present invention provides a hand-held device (10) capable of delivering a flow of oxygen to its user. One embodiment of the present invention comprises a canister (12) adapted to releaseably store pressurized oxygen, a mouthpiece (14), and a valve (16) operably connected to the canister (12) and to the mouthpiece (14). The valve (16) in this embodiment selectively permits oxygen to flow from the canister (12) to the mouthpiece (14). The canister (12) in this embodiment can be removed from the mouthpiece (14) and replaced.</p> |
