Dosing mechanism for an injection device for administering a product
US11524118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2020 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Nov 26, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31563
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dosing mechanism for an injection device includes a dose-setting element with a first element coupled thereto, which, during dose setting, is rotatable relative to a second element about a main rotation axis in a first direction and, during dose discharge, is fixed in rotation relative to the second element. The first and the second elements are coupled via a sleeve-shaped stop element, which forms a stop abutment. The dosing mechanism includes a stop, and the stop abutment, during the rotation of the first element in the first direction, executes a movement to a stop position where the stop abutment strikes the stop and prevents rotation of the first element relative to the second element in the first direction of rotation. The sleeve-shaped stop element is rotatable about a secondary rotation axis, which is offset parallel to or offset at an angle to the main rotation axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.