US Patent 11505376 Tamper-evident device

A device adapted to provide evidence of tampering. The device comprises a sleeve and an insert that is positioned within the sleeve. The insert comprises a flap that is movable between a closed position and an open position. In particular, the flap is adapted to move from a closed position to an open position when the position of the sleeve relative to the insert is changed a predetermined amount to try to open the container. As a result, an open position of the flap would readily indicate tampering to a user. A system comprising a tray adapted to receive at least one said device is also provided.