Patent ID: 8647299

Claim:
An autoinjector configured to accommodate a syringe, comprising: a housing, including: one or more radially flexible fingers, said one or more radially flexible fingers defining at least one surface of a plurality of surfaces defining a substantially cylindrical cavity within said housing; a syringe support at a first end of the substantially cylindrical cavity, wherein said syringe support includes one or more inwardly-directed protrusions forming a reaction surface, wherein said inwardly-directed protrusions are on said one or more radially-flexible fingers, and wherein said one or more inwardly-directed protrusions form an axially-rearward facing cam surface where a sufficient forward axial force on said cam surface causes said one or more radially flexible fingers to flex radially outwardly; a syringe, including: a barrel for holding a volume of medicament, a needle at one end of the barrel in fluid communication with the medicament, a plunger axially-moveable in the barrel to a forwardmost position; and a needle sheath, the needle sheath sealing the forwardmost end of the needle to maintain sterility of the medicament within the barrel whereby, in use, the needle sheath must be removed from the needle immediately prior to actuating the autoinjector; wherein said needle sheath substantially covers said needle to protect the needle from mechanical damage; and wherein the one or more inwardly-directed protrusions support the barrel at an axial location at or forward of the forwardmost position of the plunger.