Drive device for a piston in a container containing an injectable product
US7273472B2 · kind B2 · utility
5Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | May 7, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/14546
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drive arrangement for an injection device, including a first stage, a second stage and a drive for shifting the stages, wherein the drive acts on one of the stages to shift said one of the stages first and wherein the stage which is first shifted encounters a higher resistance than does the other stage, such that the other stage is shifted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.