Piston valving for serially connectable drug modules of a combinatorial drug delivery device
US12233028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Feb 24, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J1/2075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valving arrangement is provided herein for regulating fluidics of modules usable in a combinatorial drug delivery device. The valving includes a slidable piston valve, adjustable to selectively seal an outlet path from a drug vial and a sealing port, in parallel to a vent, for selectively sealing an inlet path to the drug vial. Advantageously, the subject invention allows for applied negative pressure to adjust the valving to allow flow between serially-connected modules forming a drug delivery device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.