Mouthpiece and method for delivering nebulized medicament to the airway of a subject

A method of guiding nebulized medicament to the airway of a subject, wherein the method is implemented by a mouthpiece that is removable from a nebulizer, the method comprising:

• releasably engaging an outlet of the nebulizer through which the nebulizer outputs nebulized medicament;
• physically engaging the mouth of the subject with a subject interface of the mouthpiece;
• guiding nebulized medicament from the outlet of the nebulizer to the airway of a subject through a medicament flow path during an inhalation by the subject;
• placing ambient atmosphere in fluid communication with the medicament flow path during the inhalation by the subject;
• stopping fluid communication of ambient atmosphere with the medicament flow path responsive to an end of the inhalation by the subject;
• receiving gas exhaled from the airway of the subject during an exhalation of the subject into an exhaust flow path;
• and
• placing the exhaust flow pa h in communication with an exterior of the mouthpiece in response to the exhalation of the subject so that the exhaled gas can be exhausted from the mouthpiece through the exhaust flow path.

A mouthpiece that is removable from a nebulizer and is configured to deliver nebulized medicament to the airway of a subject, the mouthpiece comprising:

• means for releasably engaging an outlet of the nebulizer through which the nebulize outputs nebulized medicament;
• means for physically engaging the mouth of the subject;
• means for guiding nebulized medicament from the outlet of the nebulizer to the airway of a subject during an inhalation by the subject;
• means for placing ambient atmosphere in fluid communication with the medicament within the means for guiding during the inhalation by the subject;
• means for stopping fluid communication of ambient atmosphere with the means for guiding responsive to an end of the inhalation by the subject;
• means for receiving gas exhaled from the airway of the subject during an exhalation of the subject;
• and
• means for placing the means for receiving in communication with an exterior of the mouthpiece in response to the exhalation of the subject so that the exhaled gas can be exhausted from the mouthpiece through the means for receiving.