Gearing mechanism for a dose delivery device
US8864721B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Nov 16, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a gearing mechanism for a dose delivery device wherein the dose can be set by rotating a dose setting member (2, 102), and by which the dose setting member (2, 102) and a push-button (4) elevates from one end of the device proportional to the set dose from a position fixed relative to a housing (1, 101), and by which an injection of the set dose can be done by pressing the push-button back to its not elevated position, moving a piston rod (10, 110) cooperating with the piston in an cartridge (12, 112) and expelling a medicament out of the through a needle. The gearing mechanism is arranged in the device in such a way, that the loss of energy is very low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.