security tag
safeguarding the container againest unauthorized opening.
for sterilization contanier
This lock with sterilization indicator, it isto prove that the container passed sterilization you use a steam indicator that you put on the container or on the seal itself. This indicator changes his color before and after sterilization.
When the container arrives to the operation room, they check first that the color of the steam indicator changes correctly, and if yes they "break" the seal open the lid.