Patent ID: 6655380
Filing Date: 2003-12-02
Classification: A61M

Abstract:
A powder inhaler for administering powder by inhalation, comprising:a dosing unit for providing a dose of powder; and a flow path downstream of the dosing unit which is defined by a plurality of surfaces though which a stream of air entraining the dose of powder is in use drawn on inhalation by a user; characterized in that at least one of the surfaces of the flow path is movable relative to at least one other of the surfaces of the flow path and in that the inhaler further comprises a powder dislodging member which is of fixed position relative to one of the at least one or at least one other of the surfaces of the flow path and is configured on relative movement of the at least one and one other of the surfaces of the flow path, to contact the other of the at least one or at least one other of the surfaces of the flow path such as to dislodge powder accumulated thereon.