Patent ID: 8550074
Filing Date: 2013-10-08
Classification: A61M

Abstract:
1. A dose delivery device for delivering a dose in a flow of air, comprising: an upper housing defining at least a portion of a primary air pathway having an upstream portion and a downstream portion, the upper housing including an opening in fluid communication with the primary air pathway and a diverter structure downstream of the opening, the diverter structure having a downstream edge positioned in the primary air pathway and arranged to divert air flowing in the primary air pathway into the opening, the opening including an upper chamber portion at a lower side of the upper housing; a lower housing defining a lower chamber portion at an upper side of the lower housing, the lower housing being slidably attached to the upper housing for movement between a first position in which the lower chamber portion is closed, and a second position in which the lower chamber portion is in fluid communication with the primary air pathway via the opening and is aligned with the upper chamber portion to form a dose chamber; and a dose located in the lower chamber portion; wherein the dose chamber and the diverter structure are arranged to recirculate air and the dose in the dose chamber with flow of air along the primary air pathway.