Medicament dispensing device, medicament magazine therefor and method of removing a medicament from a medicament chamber

US8561610B2 · kind B2 · utility

Assignee

• Boehringer Ingelheim International GmbH · DE

Inventors

• Herbert Wachtel · Ingelheim am Rhein, DE
• Johannes Geser · Gerlingen, DE
• Burkhard Metzger · Ingelheim am Rhein, DE
• Michael Spallek · Ingelheim am Rhein, DE
• Michael Krueger · Ingelheim am Rhein, DE
• Hubert Kunze · Dortmund, DE
• Achim Moser · Pocking, DE
• Elmar Mock · Bienne, CH
• Antonino Lanci · Bern, CH
• Andre Klopfenstein · La Neuveville, CH

Key dates

• Filing date: May 29, 2012
• Grant date: Oct 22, 2013
• Expiry date: May 29, 2032

Classification

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

Abstract

A medicament dispensing device, a medicament magazine thereof, and a method of removing a medicament from the medicament magazine. The inhaler has a mouthpiece (9) and an air channel (4) connected thereto, as well as a medicament magazine with at least one medicament chamber containing a powdered medicament. A drive current is produced in the air channel, while a vacuum flow (5′) can be produced by the drive current and a constriction formed in the air channel. This narrowest part of the air channel that produces the vacuum flow is connected to a removal opening (2) which communicates with a control opening (3), in order to form an emptying current through the control opening via the removal opening. In a preferred embodiment the at least one medicament chamber including the control opening, the removal opening and a fill opening are housing in the one-piece medicament magazine.