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1. (WO2018082891) FEEDBACK MECHANISM FOR AN INJECTION DEVICE

Pub. No.:    WO/2018/082891    International Application No.:    PCT/EP2017/076097
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Fri Oct 13 01:59:59 CEST 2017
IPC: A61M 5/145
A61M 5/168
A61M 5/20
A61M 5/315
Applicants: SANOFI-AVENTIS DEUTSCHLAND GMBH
Inventors: SCHADER, Marc
RAU, Matthias
BRAUN, Sebastian
Title: FEEDBACK MECHANISM FOR AN INJECTION DEVICE
Abstract:
The present invention relates to a feedback mechanism for an injection device (20) that is configured to deliver a medicament to a user. The feedback mechanism comprises an actuator (27) and a fluid chamber (40) having a restricted outlet (42). The actuator (27) is adapted to urge fluid from the fluid chamber (40) through the restricted outlet (42). The feedback mechanism also has an indicator (43) that is adapted to provide feedback to the user after a predetermined volume of fluid has passed from the fluid chamber (40) through the restricted outlet (42) during use of the injection device (20).