Astrazeneca Ab

Astra Aktiebolag

Astra Akteibolag

Allan Dagsland

Risto K Virtanen

Jan Andersson

John Kelshaw Conway

Volker Tiedemann

Uwe Rollwage

Harald Heckenmueller

Jan W Trofast

Stefan Friess

Hans Strid

Steven McGugan

Kjell Wetterlin

Karin Malmqvist-Granlund

A delivery device for administering particulate medicaments, such as dry powder. The delivery device comprises a body and a flow path comprising a chamber with an inlet and an outlet for the stream of air. The chamber is rotatable in relation to the body. Dislodging means are arranged in contact with the inner surface of the chamber. The dislodging means and the chamber are relatively rotatable in relation to one another, such that the inside of the chamber is cleaned by the dislodging means when the dislodging means and the chamber are rotated in relation to one another.

Delivery device

A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means () for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means ().

Inhaler with powder dislodging member

Inhalation device

A powder inhaler for administering powder by inhalation comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means () for providing a dose of powder to the flow path for entrainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means ().

Inhaler with vibrational powder dislodgement

A powder inhaler for administering powder by inhalation which includes: an inhaler body having an opening therein; an inhalation unit disposed in the inhaler body, the inhalation unit including an inhalation channel through which powder is in use inhaled; a dosing unit for providing a dose of powder to the inhalation channel disposed in the inhaler body so as to be rotatable about the central axis thereof, wherein the dosing unit includes a central shaft which is co-axial with the central axis of the inhaler body and has a spiral groove or protrusion on the end face thereof; and an indicating wheel for providing an indication as to the usage of the inhaler disposed in the inhaler body, the indicating wheel having a toothed periphery for engaging the spiral groove or protrusion on the shaft and being disposed such that at least a part thereof is visible through the opening and so as to be rotatable within a diametrical plane containing the central axis of the inhaler body. One side surface of the indicating wheel includes at least one indication which is representative of the usage of the inhaler. In addition, the inhaler body includes a recess in which the opening is provided. The opening allows at least a part of the one side surface of the indicating wheel to be viewed.

A powder inhaler for administering powder by inhalation, comprising: a flow path defined by a plurality of surfaces through which a stream of air is in use drawn on inhalation by a user; and dosing means ( ) for providing a dose of powder to the flow path for entertainment in the stream of air; characterized in that the inhaler further comprises dislodging means for dislodging powder accumulated on a surface of the flow path downstream of the dosing means ( ).

An inhaler for administering powder by inhalation and a method of constructing the same. The inhaler includes an inhaler body having an opening therein and an indicating wheel disposed in the inhaler body for providing an indication as to the usage of the inhaler. The indicating wheel is disposed such that at least part thereof is visible through the opening and so as to be rotatable in a diametrical plane containing a central axis of the inhaler body. The inhaler also includes a divider substantially closing one end of the inhaler body and a storage unit disposed in the inhaler body. The storage unit includes a storage chamber for storing powder for inhalation. The inhaler body and the divider are formed as a single integral unit of an opaque material and the storage unit is formed of a transparent material and has a portion which substantially fills the opening.

A powder inhaler for administering powder by inhalation, comprising a chamber (,) which includes a base member (,) and a peripheral wall member (,), wherein the chamber (,) includes a first inlet (,) through which a first stream of air containing powder is in use drawn on inhalation by a user and a plurality of second inlets (,) at the junction between the base member (,) and the peripheral wall member (,) 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 (,) and the peripheral wall member (,).

An inhaler for administering powder by inhalation, including a plurality of surfaces defining a flow path through which a stream of air is in use drawn on inhalation by a user. The flow path including a mouthpiece; and dosing means for providing a dose of powder to the flow path for entrainment in the stream of air. The inhaler further comprises a movable member downstream of the dosing means for inhibiting accumulation of powder on a surface of the flow path downstream of the dosing means.

Growing community of inventors

Karlshamn, Sweden

Allan Dagsland