Patent ID: 8968236
Filing Date: 2015-03-03
Classification: A61M

Abstract:
1. An injection device comprising: a housing adapted to receive a syringe having a discharge nozzle; an actuator; a drive acted upon by the actuator and in turn acting on the syringe to advance it from a retracted position in which the discharge nozzle is contained within the housing to an extended position in which the discharge nozzle extends from the housing through an aperture; a locking mechanism in communication with the actuator and activatable to be moved from a locked position in which the actuator is prevented from releasing the drive to an unlocked position in which the actuator is operable to act upon the drive to advance the syringe; characterized in that the locking mechanism or the housing includes integrally formed biasing means adapted to return the locking mechanism to a locked position when it is not activated, wherein the locking mechanism is in communication with a sliding sleeve which protrudes, when in a first position, from the aperture in the housing, wherein the locking mechanism is moved to its unlocked position by movement of the sliding sleeve into the housing and into a second position.