Injection device without a gearing
US9956351B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2010 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | May 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/582
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dose delivery device is disclosed wherein a dose can be set by rotating a dose setting member, whereby a push button (4) is elevated from one end of the device a distance proportional to the set dose from a position fixed relative to the housing, and wherein the set dose can then be injected by pressing the push button back to its non-elevated position, through which motion a piston rod will move approximately the same distance. The invention provides a method of forcing a numbered scale drum to rotate both during dose setting and injection to allow the user to read the remaining dose at any time during setting and injecting a dose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.