Device and mixing and/or reconstitution method

US12109395B2 · kind B2 · utility

Assignees

• Sanofi · FR
• Sagentia Ltd. · GB

Inventors

• Michael Schabbach · Weinheim, DE
• Claus Geiger · Frankfurt am Main, DE
• Andrea Heiberger · Frankfurt am Main, DE
• Dieter Kadereit · Frankfurt am Main, DE
• Charlotte Emma Harvey · Harston, GB
• Congyi Huang · Cambridge, GB
• Timothy Charles Frearson · San Diego, US
• Alexander David Norman · Cambridge, GB

Key dates

• Filing date: Nov 15, 2018
• Grant date: Oct 8, 2024
• Expiry date: Feb 6, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2209/045
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The disclosure refers to a device, for example a cartridge, a syringe or an autoinjector, which reduces the possibility of user error and provides an easy and automatic operation during mixing and/or reconstitution. The device is adapted such that activation of the device causes movement one of a first piston and a second piston in second chamber in an axial direction of the device, thereby moving the other one of the first piston and the second piston into the same axial direction of the device, opening a fluid communication path between the second chamber and a first chamber of the device, and expelling a second material from the second chamber into the first chamber via the fluid communication path. The disclosure is further directed to a respective mixing and/or reconstitution method.