Medicament injection device

US11213627B2 · kind B2 · utility

Assignee

• Sanofi-Aventis Deutschland GMBH · DE

Inventors

• Marc Schader · Frankfurt am Main, DE
• Michael Helmer · Frankfurt am Main, DE
• Peter Nober · Rommersheim, DE
• Michael Varga · Donzdorf, DE

Key dates

• Filing date: Nov 21, 2016
• Grant date: Jan 4, 2022
• Expiry date: Aug 29, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/2474
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medicament injection device comprising a main body arranged to receive a medicament cartridge; a needle carrier carrying a needle, wherein the needle carrier is axially movable with respect to the main body; and a rotatable cap at a distal end of the device, wherein the cap is removably coupled to the needle carrier, a releasable arrangement between the main body and the cap comprising a guide element and a slotted link, wherein the slotted link is arranged to cause the guide element to follow a predefined path at least partly in an axial direction during rotational movement of the cap, thereby causing the needle carrier to move axially towards a proximal end of the device as the cap is rotated up to a predefined point, wherein the main body comprises a medicament cartridge holder comprising the guide element depending therefrom for engagement with the cap.