Imaging plate covers and hygiene bags for use with the Digora® Optime imaging plate system. Imaging Plate Covers: The covers protect the Imaging Plates and therefore extend their usable life considerably. The Imaging plates are protected from cross contamination and light after the hygiene bag is removed. Hygiene Bags: New two coloured hygiene bags make positioning simple and eliminate the possibility of cross contamination. Sealing and opening the hygiene bags is effortless.