Drive mechanism for a drug delivery device
US10864328B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Sep 3, 2014 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jul 14, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drive mechanism (4) for a drug delivery device comprising—a piston rod (14), —a trigger member (9) coupled with the piston rod (14) in such a manner that rotational movement between the piston rod (14) and the trigger member (9) is constrained in a first state, the trigger member (9) being elastically deformable in such a manner that the piston rod (14) is rotationally moveable with respect to the trigger member (9) in a second state, —a trigger button (10) being suitable for activating the deformation of the trigger member (9).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.