| 摘要 |
An inexpensive, disposable, collapsible medication inhalation apparatus for use with an MDI inhaler includes an elongated housing for receiving a plume of medication particles ejected by the MDI inhaler, a mouthpiece, and an inhalation valve disposed between the mouthpiece and the housing. An exhalation port or valve in the mouthpiece allows exhalation through the mouthpiece, presenting very little resistance to the exhalation effort of the patient. An adapter receives and stabilizes a mouthpiece of the MDI inhaler. The inhalation valve includes an inhalation flap hanging adjacent to a valve seat. Exhalation into the mouthpiece presses the inhalation flap against the valve seat, forcing exhaled gas through the exhalation port or valve. Inhalation causes the inhalation flap to swing away from the valve seat to open a path for the medication plume. In one embodiment, the entire inhalation apparatus is constructed from a single sheet of foldable sheet material. |
