Medication delivery device

US9802003B2 · kind B2 · utility

Assignee

• Sanofi-Aventis Deutschland GMBH · DE

Inventors

• Michael Harms · Frankfurt am Main, DE
• Steffen Raab · Frankfurt am Main, DE
• Dominic George Webber · Cambridge, GB
• James Roberts Howarth · Cambridge, GB
• Tevor John Beckett · Cambridge, GB
• Geoffrey Philip Gray · Berkhamsted, GB
• John David Cross · Northampton, GB

Key dates

• Filing date: Oct 9, 2013
• Grant date: Oct 31, 2017
• Expiry date: Dec 11, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2207/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A medication delivery device having a housing having a proximal and a distal end, a medication receptacle designed to be engaged with the distal end of the housing by engagement of a first engagement feature with a second engagement feature and a dosing mechanism. The dosing mechanism includes a piston rod which is rotatable and moveable in a distal direction for medication delivery and a drive device for moving the piston rod in the distal direction for medication delivery. The medication receptacle includes an actuation element that brings a guiding element in a guiding position. The guiding element guides the piston rod for medication delivery. The first engagement feature and the second engagement feature are moveable into engagement by a movement of the medication receptacle which ends in a rotational movement without axial movement of the medication receptacle with respect to the housing.