Processes and devices for delivery of fluid by chemical reaction
US11925790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2018 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Jun 12, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7536
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Processes and devices provide parenteral delivery of therapeutic fluids, in particular high-viscosity therapeutic fluids (e.g., protein therapeutics), by a chemical reaction that generates a gas. A device may include a first actuation chamber containing a first reagent, a second reaction chamber containing a second reagent, and a third therapeutic fluid chamber containing the therapeutic fluid. In a loaded configuration, a plunger separates the first chamber from the second chamber. In a delivery configuration, the plunger allows the first reagent from the first chamber to communicate and react with the second reagent from the second chamber. The generated gas acts upon a plunger to deliver the therapeutic fluid from the third chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.