Medicament injection device

US11419992B2 · kind B2 · utility

Assignee

• Sanofi-Aventis Deutschland GMBH · DE

Inventors

• Marc Schader · Frankfurt am Main, DE
• Michael Helmer · Frankfurt am Main, DE
• Sebastian Braun · Rüsselsheim am Main, DE
• Michael Varga · Donzdorf, DE

Key dates

• Filing date: Nov 21, 2016
• Grant date: Aug 23, 2022
• Expiry date: Nov 14, 2039

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/3267
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medicament injection device comprising: a main body configured to receive a medicament cartridge, a needle sleeve axially movable with respect to the main body, a needle holder holding a needle, and a displacement element coupled to the needle holder and disengageably coupled to the needle sleeve; wherein, upon axial displacement of the needle sleeve by a predefined distance in a proximal direction, the needle carrier and needle are displaced axially in a proximal direction.