Inhalation device

US7779836B2 · kind B2 · utility

Assignee

• ASTRAZENECA AB · SE

Inventors

• Jan Andersson · Erlangen, DE
• Allan Dagsland · Karlshamn, SE
• Hans Strid · Lomma, SE
• Jan Trofast · Lund, SE
• Stefan Friess · Hamburg, DE
• Harald Heckenmueller · Hamburg, DE
• Uwe Rollwage · Pinneberg, DE
• Volker Tiedemann · Itzehoe, DE
• John Kelshaw Conway · Manchester, GB

Key dates

• Filing date: Nov 15, 2007
• Grant date: Aug 24, 2010
• Expiry date: Jun 28, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2206/16
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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 (18) 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 (18).