Patent ID: 9707343
Date: 2017-07-18
CPC Classifications: A61M

Claim:
1. An autoinjector comprising a lower body receiving a tank, said tank containing fluid product and comprising a piston and a needle, said autoinjector comprising: injection means to inject said fluid product through said needle when said needle is in an injection position; and a tank movement device for retracting said needle from the injection position after injection of the fluid product, a trigger, actuated by said injection means, actuating said tank movement device after injection of the fluid product so as to retract said needle, said trigger comprises a projection adapted to actuate said tank movement device after a predefined rotation of said trigger; said autoinjector comprising a retarding device adapted to delay during a predetermined time the actuation of said tank movement device by said trigger after injection of the fluid product, to delay retraction of said needle by said predetermined time after the end of injection; wherein said retarding device comprises an epicycloidal train having at least one stage wherein each stage of said epicycloidal train comprises a planetary associated with at least one satellite.