Patent ID: 7806866

Claim:
A device for automatically injecting an agent, said device comprising a receptacle for the agent, which receptacle is displaceable, together with an injection needle connected thereto, inside a housing for the purpose of inserting the injection needle into a patient, a syringe piston that is displaceable inside the receptacle for the purpose of expelling the agent, an indicator, wherein an axial displacement path of the indicator visible from the outside shows progress of expelling the agent from a beginning of the expelling to an end of the expelling, said visible axial displacement path being shorter than a total distance of displacement of the syringe piston relative to the housing, and a transmission part movable along a first partial path for inserting the injection needle and a second partial path for expelling the agent and operably connected to the indicator by at least one spring element such that said indicator moves along the visible indicator displacement path in response to the transmission part expelling the agent.