Sanofi
Audible indicator

Abstract:

An audible indicator for use with a drug delivery device is described. The audible indicator includes a spring element configured to reside in one of a relaxed state or a biased state. The audible indicator includes a rotatable element coupled to the spring element. The spring element releases stored energy to rotate the rotatable element such that the rotatable element impacts a surface to generate an audible signal when the spring element changes from the biased state into the relaxed state.