Microstructured high pressure nozzle with built-in filter function

US7896264B2 · kind B2 · utility

Assignee

• Boehringer Ingelheim International GmbH · DE

Inventors

• Joachim Eicher · Karlsruhe, DE
• Johannes Geser · Gerlingen, DE
• Matthias Hausmann · Rees, DE
• Holger Reinecke · Emmendingen, DE

Key dates

• Filing date: Jun 25, 2004
• Grant date: Mar 1, 2011
• Expiry date: May 26, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/0244
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A microstructured nozzle consists of a number of channels produced by microstructuring a plate-shaped member. In the nozzle the channels are located between projections which are arranged side by side in rows and project from a base plate. This microstructured base plate is covered with a cover plate. The channels are narrowly defined in terms of shape, cross sectional area and length. The nozzle contains a filter as the primary structure and a secondary structure downstream of the filter.The nozzle is used, for example, with an atomiser which produces an aerosol from a fluid containing a medicament.