Method and system for administering a medication

A kit comprising:

• (a) a needleless injection device having a body with a barrel portion and a discharge portion;
• (b) a syringe having a luer tip;
• and
• (c) a coupling member comprising:
• (i) a first end configured and dimensioned to correspond to the shape of and to be connected to the discharge end of the needless injector device;
• (ii) a second end configured and dimensioned to correspond to and receive the luer tip of the syringe;
• and
• (iii) an inner surface configured and dimensioned to establish a fluidic communication between an interior portion of the needleless injector device and an interior portion of the syringe,
• wherein said coupling member comprises a one-piece element integrally including means for forming a fluidically tight connection with said discharge end and said luer tip of said syringe.

A method for parenterally administering a medication through the skin of an injection receiver, comprising:

• (a) providing a needleless injector device having a barrel portion, a gas storage portion, and an intermediate portion extending between the barrel portion and the gas storage portion;
• (b) providing a needleless syringe prefilled with a medication, said syringe being suitable for needleless loading of the injector device with said medication prefilled in the syringe;
• (c) loading the medication prefilled in the syringe into a bore of the barrel portion of the injector device through an aperture in the barrel portion thereof via a one piece coupling member, the one-piece coupling member including means for forming a fluidically tight connection with said aperture and a luer tip of said syringe, a dosage of the medication being thereby available in the injector device at the end of the loading;
• (d) detaching the prefilled syringe from the injector device;
• and
• (e) operating the loaded injector device to eject the dosage of medication contained therein from the injector device and thereby pass said dosage of the medication through the skin of an injection receiver.

A needleless injection system, comprising:

• (a) a needleless injector device that is dimensioned and arranged as an integral unit to be grasped in the hand of a user, the device having a barrel portion with a bore for receiving medication to be injected, a gas storage portion, and an intermediate portion extending between the barrel portion and the gas storage portion;
• (b) a syringe, having a luer tip, prefilled with a medication, said syringe being suitable for loading the injector device with said medication prefilled in the syringe;
• and
• (c) a coupling member for connecting the prefilled syringe to the needleless injector device and thereby establishing a fluidic communication between an interior portion of the syringe and the bore of the injector device for the purpose of transferring a quantity of said medication from the prefilled syringe into said bore of the injector device,
• wherein said coupling member comprises a one-piece element integrally including means for forming a fluidically tight connection with an aperture of said bore of the injector device and said luer tip of said syringe.