US Patent 11401079 Tamper evident cap

The invention relates to a tamper evident cap for removable screwing onto a fluid outlet provided on an enteral fluid source, the cap includes a tamper evident feature comprising a deflectable element configured to be momentarily deflectable in a longitudinal direction by a deflecting element provided on the fluid outlet as the cap is screwed onto the fluid outlet, and wherein the deflectable element is configured to be permanently deflected outwardly in relation to the longitudinal axis by the deflecting element as the cap is unscrewed from the fluid outlet to provide a visual indication that the cap has been unscrewed.