Patent ID: 9427535
Filing Date: 2016-08-30
CPC Classification: A61M

Claim Text:
1. Drug delivery device equipped with a trigger mechanism, wherein the drug delivery device is an inhaler, the trigger mechanism comprising a first spring and a second spring, an actuation element, and a series of cascaded trigger elements pre-stressed with increasing pre-stressing, wherein the series of cascaded trigger elements are coupled to the first spring and the second spring, wherein upon exerting a sufficient actuation force (Fa, U) on the actuation element the trigger elements cause a cascaded release of increasing portions of energy stored in the first spring and the second spring, characterized in that a first trigger element is equipped with a latch element directly and releasably coupling at least two trigger elements, wherein the latch element directly couples the first trigger element to a second trigger element to restrain the second trigger element to its pre-stressed state before the actuation force (Fa, U) is exerted.