US Patent 11141538 Medicament delivery device

A medicament delivery device (IO) is presented having a housing and a medicament container holder arranged movable in relation to the housing and capable of accommodating a medicament container. The device also has an activator having a plunger rod arranged to be moved in the proximal direction of the medicament delivery device by the activator to act on a stopper in the medicament container for delivering a dose of medicament through a medicament delivery member when the activator is operated. A delay mechanism is also arranged between the activator and the plunger rod, which is provided with delay elements allowing movement of the activator in the proximal direction after movement of the plunger rod has terminated.