Arrangement for determining a longitudinal position of a stopper

US8773660B2 · kind B2 · utility

Assignee

• Sanofi-Aventis Deutschland GMBH · DE

Inventors

• Christian Pommereau · Frankfurt am Main, DE
• Anke Liewald · Frankfurt am Main, DE
• Nils Basso · Frankfurt am Main, DE
• Thomas O. Nagel · Rockford, US
• René Richter · Rabenau, DE
• Robert Witt · Dresden, DE

Key dates

• Filing date: Sep 15, 2010
• Grant date: Jul 8, 2014
• Expiry date: Apr 19, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/6081
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention refers to an arrangement and a method for determining a longitudinal position of a stopper for sealing a compartment of a translucent medicament container for a liquid medicament (M). The arrangement comprises a circular light source and a photo sensitive sensor, wherein either the light source or the sensor is laterally arrangeable next to the medicament container extending over at least part of the length of the medicament container, and wherein the respective other of the light source and the sensor is arrangeable in a circular manner around a head of the medicament container. The light source is arranged to emit light into the medicament container. The light is scattered by the medicament or medicament container and detected by the sensor. The sensor is connected to a processor unit for detecting the position of the stopper).