Patent ID: 9381308
Filing Date: 2016-07-05
CPC Classification: A61M

Claim Text:
1. An injection supporting device for a syringe, the syringe comprising a cartridge for containing a medicament and an injection needle extending in an axial direction from the cartridge to dispense the medicament from the cartridge, the injection supporting device comprising: a housing to receive at least a part of the cartridge; a needle shield with a distal portion and a proximal portion, the needle shield comprising a distal opening in a front end of the distal portion and a needle guide for guiding the injection needle towards the distal opening, the needle guide comprising a needle channel extending from the distal opening through an interior of the needle shield, the needle channel being formed to receive and guide the injection needle, and the needle shield being attached to the housing and slidable relative to the housing along the axial direction between a guarding position covering a tip of the injection needle and an injection position in which a front end portion of the injection needle extends through the distal opening of the needle shield; and a resilient member coupled to the needle shield and the housing for urging the needle shield towards the guarding position, wherein the needle shield and the housing comprise a stopping mechanism to define the injection position of the needle shield by restricting the needle shield from retracting further into the housing than in the injection position, wherein the stopping mechanism comprises a first stopping surface of the housing and a corresponding second stopping surface of the needle shield, the injection position being a position when the two stopping surfaces contact each other, wherein the needle shield comprises a lower inner extension extending from the distal portion along a longitudinal axis of the needle shield, the lower inner extension defining a cylindrical wall that defines the needle channel and encases the injection needle, the lower inner extension further defining the second stopping surface, and wherein the needle channel, in the injection position, extends from the distal opening to the first stopping surface.