| 摘要 |
A hypodermic syringe of the kind comprising an assemblable syringe head and syringe body; a protective case for the syringe body; a cartridge containing a dose of anaesthetic intended for support in the syringe body; and a sterilization and presentation support for the syringe body, cases and cartridges. The hypodermic syringe having a head with a tip adapted for connection to the body, a rod slidingly mounted in the axial direction in the tip, gripping elements fixed to the tip and to the exterior free end of the rod, the body being hollow, and adapted to receive a cartridge of anaesthetic, having at one end threads for being fixed to the tip and adapted at the other end to receive a double needle holder, the gripping element fixed to the tip being mounted on the latter adjustably in the longitudinal direction with respect to the gripping element fixed to the exterior end of the rod.
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