Device, cartridge and method for dispensing a liquid

US9050428B2 · kind B2 · utility

Assignee

• Boehringer Ingelheim International GmbH · DE

Inventors

• Stephen Terence Dunne · Stowmarket, GB
• Holger Holakovsky · Witten, DE
• Alexander Bach · Glückstadt, DE
• Jens Besseler · Bingen, DE
• Manuel Krakowka · Welver, DE
• Gilbert Wuttke · Dortmund, DE

Key dates

• Filing date: Aug 17, 2009
• Grant date: Jun 9, 2015
• Expiry date: Apr 23, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D83/48
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device, cartridge and method for dispensing a liquid, preferably a drug, are proposed. The liquid is pressurized in a cartridge to a first lower pressure and, then, pressurized in doses by a pump to a second higher pressure. A valve arranged between the cartridge and the pump is normally closed and/or opened only temporarily. Thus, evaporation and dripping of liquid can be avoided or minimized.