Process and device for delivery of fluid by chemical reaction

US9321581B2 · kind B2 · utility

Assignee

• ELI LILLY AND COMPANY · US

Inventors

• Corrie Bennison · Lewis Center, US
• Chris Muenzer · Columbus, US
• Tim Blum · Columbus, US
• Chris McKenzie · Lancaster, US
• Steve Madland · Gahanna, US
• Jeff Ellis · Virginia Beach, US
• Amy M. Heintz · Dublin, US
• Brian J. Kaseman · Columbus, US

Key dates

• Filing date: Oct 15, 2013
• Grant date: Apr 26, 2016
• Expiry date: Dec 27, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D83/643
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Processes and devices for delivering a fluid by chemical reaction are disclosed. A chemical reaction is initiated in a reaction chamber to produce a gas, and the gas acts upon a piston to deliver the fluid. Preferred devices typically include an upper chamber, a lower chamber, a fluid chamber, a piston between the lower chamber and the fluid chamber, and a barrier between the upper chamber and the lower chamber. When the barrier is broken, reagents in the upper chamber and the lower chamber are mixed together to generate the gas.