Improved medicament delivery device
AssigneeAlchemy Pharmatech Limited
InventorsRobert Clayborough, Ian Harrison
Life of this patent
Estimating the term…
Abstract
A medicament delivery device comprising a casing defining a volume for receiving a rupturable container containing a medicament and a propellant, and a needle hub assembly. The needle hub assembly comprises a needle having a longitudinal axis, and a needle hub to which the needle is affixed, wherein the needle hub is engageable with the casing such that the needle extends into the volume for receiving the rupturable container. The needle hub has a profile such that circumferential interference between the needle hub and the casing prevents rotation of the needle hub relative to the casing about an axis parallel to the longitudinal axis when the needle hub is engaged with the casing.
Claims16
A medicament delivery device comprising:
- a casing defining a volume for receiving a rupturable container containing a medicament and a propellant;
- and
- a needle hub assembly comprising a needle having a longitudinal axis, and a needle hub to which the needle is affixed, wherein the needle hub is engageable with the casing such that the needle extends into the volume for receiving the rupturable container;
- wherein the needle hub has a profile such that circumferential interference between the needle hub and the casing prevents rotation of the needle hub relative to the casing about an axis parallel to the longitudinal axis when the needle hub is engaged with the casing.
A method of assembling a medicament delivery device comprising the steps:
- (i) providing a medicament delivery device according to any preceding claim;
- (ii) rotationally aligning the needle hub in a desired rotational alignment configuration relative to the casing;
- and
- (iii) engaging the needle hub with the casing whilst the needle hub is in the desired rotational alignment configuration relative to the casing.
Dependencies are inferred from the claim text.