Cap Assembly for a Drug Delivery Device
AssigneeSanofi-Aventis Deutschland GmbH
InventorMichael Helmer
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Abstract
The present invention relates to a cap assembly for a drug delivery device, comprising: a cap body (12) adapted to releasably engage with a housing of the drug delivery device and being further adapted to receive a needle assembly to be releasably interconnected with said housing, an ejector unit movably arranged on the cap body at least along the body's long axis and having mechanical transmission means adapted to transfer axial movement of the ejector unit to the needle assembly for ejecting the needle assembly from the cap body.
Claims13
A cap assembly for a drug delivery device, comprising:
- a cap body adapted to receive a needle assembly to be releasably interconnected with said housing,
- an ejector unit movably arranged on the cap body at least along the body's long axis and having mechanical transmission means adapted to transfer at least an axial displacement of the ejector unit to the needle assembly for ejecting the needle assembly from the cap body, characterized by:
- an ejector unit slidably arranged on a proximal end section of the cap body and being at least displaceable into an ejecting position in which the ejector unit at least partially protrudes from the proximal end section of the cap body, and
- wherein the cap body is further adapted to releasably engage with a housing of the drug delivery device and comprises a cupped receptacle for selectively receiving at least a part of a cartridge holder or body of a drug delivery device.
A method of disengaging a needle assembly and a housing of a drug delivery device comprising the steps of:
- inserting the needle assembly mounted on a distal housing section of the drug delivery device into a cupped body of a cap assembly having a corresponding needle cap secured therein,
- mutually disengaging the needle assembly and the housing section by translationally and/or rotatably displacing the cap assembly and the housing away from each other, wherein the needle assembly is secured to the cap assembly, characterized by:
- displacing an ejector unit slidably arranged on a proximal end section of the cap body in a longitudinal direction towards the open end of the cupped body and into an ejecting position in which the ejector unit at least partially protrudes from the proximal end section of the cap body for ejecting the needle assembly from the cap assembly.
Dependencies are inferred from the claim text.