Pen-needle assembly for preventing under-torquing and...

Details Pen-needle assembly for preventing under-torquing and... Pen-needle assembly for preventing under-torquing and...

A - Human Necessities

61

M

A61M 5/32 (2006.01) A61M 5/20 (2006.01)

Patent

CA 2639320

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.

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