PEN NEEDLE ASSEMBLY FOR PREVENTING UNDER-TORQUING AND OVER-TORQUING OF PEN NEEDLE

摘要

PROBLEM TO BE SOLVED: To provide 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.SOLUTION: 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.