Patent ID: 7384416

Claim:
A container system for collection of a biological fluid comprising: i) a collecting device; ii) a collecting container; iii) a first channel providing fluid communication between the collecting device and the collecting container; iv) a sampling container; v) a second channel providing fluid communication between the first channel and the sampling container; and vi) at least one substantially irreversible closure device in an open position provided on at least one of the first and second channels, wherein the substantially irreversible closure device, once in a closed position, cannot readily be restored to an open position and wherein the substantially irreversible closure device comprises: i) a lock base including: (a) a housing with two lateral clips to allow connection of the device to a tube and at least two internal stops and an intermediate region between the two internal stops; and (b) an orifice; ii) a flange including: a) a projection that presses into the intermediate region between the two internal stops when the flange is closed over the lock base; and b) a finger with a radial toe; and iii) a hinge around which the lock base and flange rotate with respect to each other, whereby the lock base and flange may be rotated around the hinge to a closed position wherein the finger is disposed within the orifice and is secured therein by the radial toe.