초록 ▼

A powder inhaler for administering powder by inhalation, comprising a chamber (58) which includes a base member (12) and a peripheral wall member (48), wherein the chamber (58) includes a first inlet (36) through which a first stream of air containing powder is in use drawn on inhalation by a user a

A powder inhaler for administering powder by inhalation, comprising a chamber (58) which includes a base member (12) and a peripheral wall member (48), wherein the chamber (58) includes a first inlet (36) through which a first stream of air containing powder is in use drawn on inhalation by a user and a plurality of second inlets (66, 67, 68, 69, 100) at the junction between the base member (12) and the peripheral wall member (48) through which a plurality of second streams of air of combined lesser flow than the first stream of air are in use drawn on inhalation by the user so as to minimize retention of powder at the junction between the base member (12) and the peripheral wall member (48).

대표청구항 ▼

[ What is claimed is:] [1.]1. A powder inhaler for administering powder by inhalation, comprisinga powder delivery component including a multiple-does storage region and a mechanism for accessing a single dose at a time from said storage region,an inhalation channel that is positioned to receive pow

[ What is claimed is:] [1.]1. A powder inhaler for administering powder by inhalation, comprisinga powder delivery component including a multiple-does storage region and a mechanism for accessing a single dose at a time from said storage region,an inhalation channel that is positioned to receive powder from said mechanism of said powder delivery component so as to provide a first stream of air containing powder when air is drawn through said inhalation channel,a chamber which includes a base member and a peripheral wall member, said base member having a transverse surface extending across said peripheral wall member,wherein the chamber includes a first inlet through said surface through which said first stream of air containing powder is in use drawn into said chamber on inhalation by a user and a plurality of second inlets at the junction between the base member and the peripheral wall member at said surface through which a plurality of second streams of air of combined lesser flow than the first stream of air are in use drawn on inhalation by a user so as to minimize retention of powder at the junction between the base member and the peripheral wall member at said surface.