Accessory device for drug delivery device
US11986639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2018 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Oct 12, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/6081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An add-on device adapted to be releasably mounted on a drug delivery device, the add-on device comprising an outer assembly with an add-on dose setting member adapted to be coupled to the outer housing of a pen housing, as well as an inner sensor assembly engaging the pen dose setting member and being in rotational engagement with the add-on dose setting member during dose setting. The invention addresses the issue of providing a stable inner platform for the sensor means, which in accordance with the invention is realized by actuating a clutch between the pen housing and the pen dose setting member during dose sensing, this preventing to a high degree that the inner sensor assembly rotates relative to the drug delivery housing during actuation of the drug expelling means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.