Portable drug mixing and delivery device and associated methods

US12239822B2 · kind B2 · utility

Inventors

• Brent A. Buchine · Watertown, US
• Adam Standley · Boston, US
• Christopher J. Stepanian · Somerville, US
• Kaliappanadar Nellaiappan · Lexington, US
• Cole Constantineau · Cambridge, US
• Michel Bruehwiler · Newton, US
• Jeffrey Thomas Chagnon · Bow, US
• Robert Brik · Cambridge, US

Key dates

• Filing date: Nov 5, 2019
• Grant date: Mar 4, 2025
• Expiry date: Jun 24, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/366
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A portable dual chamber auto-injector configured to store a dry opioid antagonist medicament separately from a liquid component, wherein a user actuated mixing system comprising a movable component to create a fluidic pathway between the first and second chambers and release a portion of energy from a pre-stored energy to drive a displacement mechanism into the first chamber and displace the liquid component into the second chamber and solubilize the opioid antagonist. A needle assembly in fluid communication with the second chamber can be used to transfer the solubilized opioid antagonist.