EP4631550A3 — Drug delivery device

USPTO Abstract

The present disclosure relates to method for assembling an audible and/or tactile indicator (50) into a drug delivery device (10). The audible and/or tactile indicator (50) comprises a resilient force member (50.1) configured to reside in two or more states (S1, S2) having two or more different conformations, - wherein in a relaxed state (S1), the resilient force member (50.1) is relaxed in a first conformation, - wherein in a biased state (S2), the resilient force member (50.1) is biased to store energy in a second conformation different to the first conformation, - wherein the resilient force member (50.1) releases stored energy to generate an audible signal when changing from the biased state (S2) into the relaxed state (S1) due to a transition from the second conformation to the first conformation, - wherein the resilient force member (50.1) is bent by a certain angle about a longitudinal axis (L) forming a longitudinal round fold (50.2) with two adjacent angled wing-shaped sections.