Medication delivery apparatus and system and methods for the use and assembly thereof

摘要

A delivery system includes a holding chamber with first, second and third openings, and independently moveable first, second and third flow control members. A delivery system includes a holding chamber and a flow control member including a flap pivotable from an at rest position in a direction toward an outlet of a user interface and away from an output end of the holding chamber in response to a pressure being applied thereto.