A covering for an aseptic treatment site is disclosed. An exemplary covering includes a substrate defining an aperture which permits selective access to an aseptic treatment site on a patient; and a transparent cover is borne by the substrate and which is removably affixed in substantially aseptic covering...http://www.google.com.au/patents/US7275544?utm_source=gb-gplus-sharePatent US7275544 - Covering for an aseptic treatment site
