Dose mechanism for an injection device for limiting a dose setting corresponding to the amount of medicament left
US9775953B2 · kind B2 · utility
8Cited by
29References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Feb 21, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3151
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A mechanism for preventing setting of a dose, which exceeds the amount of a medicament in a reservoir in an injection device. The device can contain a threaded piston rod, a limiter and a driver. The three elements can be arranged such that during dose setting, the limiter is moved towards an end-of-content position, wherein dose setting is limited. The invention contains an accumulative and a non-accumulative embodiment. The invention further relates to a mechanism for preventing ejection of a dose exceeding the set dose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.