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US 2016/0101241 A1Published application
Pen Needle Assembly For Preventing Under-Torquing and Over-Torquing Of Pen Needle
AssigneeBecton, Dickinson and Company
InventorsTieming Ruan, Abhijitsinh S. Raj, Joshua D. Horvath, Adam Gold
Life of this patent
Estimating the term…
Abstract
A pen needle hub and cover for a pen needle assembly that provides tactile and/or audible indicia of proper attachment between the hub of the pen needle and the pen is provided. Such indicia substantially prevent under- and over-torquing of the pen needle. The tactile indicia may include a user sensing a wave of a torque of peak value followed by a torque of lesser value.
Claims14
A hub assembly for an injection apparatus, comprising:
- a cover;
- a hub disposed in said cover and having first and second ends and outer and inner surfaces, an opening being formed at said first end and threads being formed on said inner surface proximal said second end to facilitate connecting said hub assembly to a cartridge of said injection apparatus;
- and
- a ring assembly disposed inside said hub, said ring assembly having an outer edge engaging said threads,
- wherein when said hub assembly is properly connected with the cartridge, continued rotation of said cover with respect to the cartridge causes said ring assembly to move with respect to said threads and create audible indicia with said threads.
2 more elements
A hub assembly for an injection apparatus, comprising:
- a cover having outer and inner surfaces;
- a hub disposed in said cover and having a base and a side wall extending outwardly from said base, threads being formed on an inner surface of said side wall to facilitate connecting said hub assembly to a cartridge of said injection apparatus;
- a first projection formed on said inner surface of said cover;
- and
- a second projection formed on an outer surface of said base of said hub, said second projection contacting said first projection;
- wherein when said hub assembly is properly connected with the cartridge, continued rotation of the cover with respect to the cartridge causes said second projection to move over said first projection, thereby creating audible indicia to the user that said hub assembly and the cartridge are properly connected.
3 more elements
Dependencies are inferred from the claim text.