Auto-injector
US9352090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | May 10, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/582
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An auto-injector comprising a tubular chassis, a carrier subassembly comprising a tubular carrier slidably arranged partially inside the chassis, a drive spring and a plunger, the syringe is lockable for joint axial translation with a carrier, a control spring, and a needle insertion control mechanism comprising a first collar biased by the control spring in a proximal direction. At least one resilient beam is proximally arranged on the first collar, wherein respective recesses are arranged in the carrier and case. A transversal extension of a head of the resilient beam is wider than a gap between the carrier and the chassis causing the head of the resilient beam to abut a distal face on the recess in the chassis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.