An injector device comprises a needle support member for supporting a distal end of a needle within a collar region of the device. On insertion of the neck of a drug cartridge into the collar region, the tip of the needle pierces a septum in the drug cartridge and is thereafter supported by the septum. The needle support member is then displaced by the drug cartridge as it moves further into the collar region. The displacement may comprise hinging or sliding of the support member. By supporting the needle as it pierces the septum and by providing controlled resistance to rapid or violent insertion of the drug cartridge, the needle support member enables a single, fine needle to be used for both the distal end and the proximal end without buckling, even if the needle is curved so that the two ends are mutually inclined.
