Medicament delivery device
US9005160B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2010 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Dec 3, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medicament delivery device includes a distal housing part; a proximal housing part in which a multi-chamber medicament container is arranged, with the proximal housing part movable relative to the distal housing part for mixing substances in the container; a plunger rod arranged to act on a stopper in the container, where movement of the housing parts toward each other forces the stopper against the plunger rod for mixing the substances in the container; a drive force unit for forcing the plunger rod for subsequent delivery of medicament; an activation member slidable through the distal housing part and releasably connected to the drive force unit; and a guide shell one-way rotatable in the distal housing part with threads that cooperate with threads on the proximal housing part. The guide shell and plunger rod have guide members such that they are rotationally locked but slidable in relation to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.