Dial-down mechanism for wind-up pen
US9132239B2 · kind B2 · utility
9Cited by
16References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2009 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3156
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a dial-down mechanism for an injection device comprising a torsion spring for assisting injection of a dose of medicament from the injection device, the dial-down mechanism comprising a ratchet arm (21) engaging a ring element (10) and a reset element (30) which acts on a knob located on the periphery of the ratchet arm (21) to move the ratchet arm (21) out of engagement with the ring element (10) in order to allow the set dose to be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.