Back to results
US 2026/0216449 A1Published application
A subassembly of a medicament delivery device
AssigneeShl Medical AG
InventorsJohan Zander, Johan Egerström
Life of this patent
Estimating the term…
Abstract
The present disclosure generally relates to medicament delivery devices such as autoinjectors, and particularly concerns a subassembly comprising separate springs for activation and lock out after use.
Claims16
1-15. (canceled)
A subassembly of a medicament delivery device, the subassembly comprising:
- a housing extending in a longitudinal direction from a proximal end to a distal end relative a longitudinal axis;
- a needle cover arranged in the housing and configured to cover a needle at the proximal end of the housing, the needle cover is axially movable in relation to the housing along the longitudinal axis between a distal position and a proximal position;
- a rotator arranged in the needle cover, the rotator is axially rotatable with respect to the needle cover, the rotator comprises a lock member with a distally facing surface that abuts against a proximally facing surface of a corresponding lock portion of the needle cover, to prevent the needle cover from moving linearly in the proximal direction in relation to the rotator;
- a first spring arranged in the rotator, the first spring is compressed between a proximally facing surface of the rotator and a distally facing surface of the needle cover;
- and
- a second spring arranged in the housing, the second spring is arranged between a proximally facing surface of the housing and a distally facing surface of the rotator, wherein the stiffness of the first spring is higher than the stiffness of the second spring.
3 more elements
Dependencies are inferred from the claim text.