AU2006324478B2 — Manifold for use in medicament dispenser

USPTO Abstract

There is provided a manifold (450) for use in a medicament dispenser device for the delivery of medicament powder from an open blister pocket (404a,b) of a blister pack (400a,b). The manifold comprises a body, said body defining a chimney (452) having a chimney inlet (453) and a chimney exit (454a,b) for directing airflow (485) from said chimney inlet to said chimney exit; the body further defining a chamber (460) having a chamber inlet (473a,b) and a chamber exit (474). The chimney exit and said chamber inlet lie side-by-side each other such that when said open blister pocket of said blister pack is positioned adjacent thereto said airflow (485) may be directed from the chimney exit to the chamber inlet via the open blister pocket to entrain said medicament powder and enable transport thereof in the airflow from the chamber inlet to said chamber exit. One or more bleed holes (480) are provided between the chimney and the chamber such that bleed airflow (486) may be directed into the chamber to disruptively impact the airflow (485) that transports the entrained medicament powder.