There is disclosed a bandage which permits drying of a wound or the wound exudate and yet which provides a barrier to bacteria, said bandage comprising an absorbent pad, a barrier film positioned over the surface of said pad, said barrier film being gas permeable and yet substantially impermeable to...http://www.google.com.au/patents/US4561435?utm_source=gb-gplus-sharePatent US4561435 - Wound dressing
