Patent ID: 8313465

Claim:
An injection device comprising: a housing adapted to receive a syringe having a relatively wide reservoir portion and a relatively narrow discharge nozzle, so that the syringe is movable between a retracted position in which the discharge nozzle is contained within the housing and an extended position in which the discharge nozzle extends from the housing through an exit aperture; a drive element that acts upon the syringe; a drive that acts upon the drive element to advance the syringe from its retracted position to its extended position and discharge its contents through the discharge nozzle; a syringe carrier movable within the housing for carrying the syringe as it is advanced and restraining its advancement beyond its extended position, wherein the syringe carrier is adapted to support the syringe between the reservoir portion and the discharge nozzle, wherein the syringe carrier comprises an annular portion which is adapted to act as part of a release mechanism and couple with the drive element in order to disconnect the drive element from the drive.