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US 2012/0071835 A1Published application
Pen needles and needle cap assemblies
AssigneeOwen Mumford Limited
InventorsJeremy Marshall, Jessica Robson
Life of this patent
Estimating the term…
Abstract
A pen needle or pen needle cap assembly is designed to be manually attached e.g. by screwing onto an injection device, and is provided with a gripping region designed to allow the torque that can be applied in the tightening sense to be less than that which can be applied in the loosening sense.
Claims14
A needle cap assembly for an injection device (10-22) the assembly comprising:
- a pen needle (24) for being rotatably engaged with an injection device or an associated component, and having a forwardly projecting needle,
- a needle cap (28) removably engaged with said pen needle (24) in which it shrouds said forwardly projecting needle,
- the pen needle (24) and the needle cap (28) having complementary drive surfaces to allow rotation of the needle cap to be transmitted to said pen needle,
- characterised in that said needle cap (28) is provided with a gripping region designed so that, when gripped manually, the torque that can be applied to tighten the pen needle before the manual grip slips is less than that which can be applied to loosen the pen needle.
1 more element
A pen needle (28) for being rotatably engaged with an injection device or an associated component in use, and having a forwardly projecting needle,
- characterised in that said pen needle includes a gripping region (34) designed so that, when gripped manually, the torque that can be applied to tighten the pen needle before the manual grip slips is less than that which can be applied to loosen the pen needle.
Dependencies are inferred from the claim text.