Injection device with torsion spring and rotatable display
US11446443B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2019 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Oct 1, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to an injection device comprising a torsion spring operatively connected to a dose setting member being adapted to set a dose to be ejected from the injection device. A rotatably mounted display member adapted to display the dose to be ejected in accordance with a setting of the dose setting member is also provided. The rotatably mounted display member is adapted to be rotated over an angle corresponding to at least one revolution of the display member. The display member may be implemented as a dose indicator barrel having numerals arranged along a helical path on an outer surface thereof, or alternatively, as a counting device having two or more display wheels having numerals arranged on an outer surface thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.