Sanofi
Injection device

Abstract:

An Injection device for administering a dose of liquid medicament to patient comprises--a syringe containing the dose of medicament--a hollow injection needle adapted to penetrate skin of the patient,--a stopper translatably disposed within syringe,--a plunger connectable to stopper and translatable in at least a proximal direction to displace stopper in the proximal direction and--a releasable noise component capable of, upon release, generating an audible and/or tactile feedback. The proximal displacement of stopper causes the dose of the medicament to be expelled through the hollow injection needle. The noise component is released when the plunger reaches a position relative to the syringe in which stopper is located in proximity of a proximal end of the syringe. The released noise component impacts on at least one component of the injection device to generate the audible and/or tactile feedback indicating the end of the injection.