Medicament delivery device
US9033935B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2010 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Jul 24, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3143
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medicament delivery device has a housing and a sleeve; a shield within and protruding from the housing; a container having a delivery member, a chamber containing a medicament, and a piston; a drive mechanism having a spring and a plunger rod in contact with the piston; and a container holder having a first locking device releasably connected to a corresponding locking device on the sleeve for holding the holder in an initial state against the drive mechanism and a second locking device surrounded by the sleeve and releasably connected to a corresponding locking device on the plunger rod for protecting the piston from force from the drive mechanism until the holder has moved a certain predetermined distance. The shield releases the first locking device when the shield is pressed against a medicament delivery site, whereby the drive mechanism forces the holder the certain predetermined distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.