Drug filled delivery assembly
US9889258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2012 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jan 17, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2474
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drug delivery assembly includes a housing (110), a piston (120) axially displaceable in the housing, and a variable volume reservoir (105) formed by the housing and the piston and containing a fluid first drug. The assembly further includes an exterior fluid inlet (150) arranged in or configured to be arranged in fluid communication with the reservoir, a fluid outlet (145) arranged in or configured to be arranged in fluid communication with the reservoir, biasing means (130) configured for moving the piston forwards, and releasable retaining means (113) configured for retaining the piston in an initial position, whereby the biasing means is allowed to move the piston forwards to expel fluid drug from the reservoir when the retaining means is released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.