Syringe with Luer-lock connector provided with a tamper-proof cap

A syringe, comprising:

• a hollow cylindrical body containing a product to be injected and from which a hollow tip equipped with a Luer-lock connector extends, and a plunger configured to slide inside the hollow cylindrical body;
• and
• a tamper-proof cap comprising a closure cap and a tamper-proof insert, wherein the closure cap includes a portion for coupling with the Luer-lock connector and a handle portion;
• wherein an external seat for housing the tamper-proof insert is formed in the handle portion of the closure cap,
• wherein the tamper-proof insert comprises at least one longitudinal section, a transverse section and a terminal element which is connected to a free end of the longitudinal section by a frangible connection, the terminal element configured to be immovably housed in a corresponding groove formed on an external surface of the Luer-lock connector,
• and wherein the tamper-proof cap further comprises means for the unmovable coupling of the tamper-proof insert and the closure cap.