Patent ID: 7648481

Claim:
A syringe tip cap for sealingly closing a distal opening of a syringe body, the syringe tip cap comprising: a fastening ring to be arranged and fastened on the syringe body about the distal opening; and a closure cap releasably connected to said fastening ring and sealingly closing the distal opening; said fastening ring having a first locking device interlocked with a second locking device of said closure cap, and wherein said first locking device and said second locking device are configured not to be unlocked without sustaining damage and, after unlocking, cannot be returned to an initial locked state; wherein said first locking device includes locking recesses formed in a distal end face of said fastening ring and said second locking device includes locking tabs engaged within said locking recesses with a form fit; and wherein said locking tabs project from said closure cap parallel to the longitudinal axis in the proximal direction, said locking recesses are open at the distal front end face of said fastening ring, and said locking tabs project across the distal front end face of said fastening ring and into said locking recesses.