| 摘要 |
<p>A first aid dressing for wounds or burns to prevent gross infection of the burns or wounds from air or water-borne bacteria, dust, dirt, etc. which comprises a microporous breathable thermoplastic film of sufficient size to cover the burn or wound and preferably an uninjured perimeter around the burn or wound and means around the perimeter of the microporous film, such means being able to provide a closure of the microporous film dressing to the perimeter around the burn or wound, the closure being sufficiently secure to prevent gross entry of air between the dressing and the skin. In use, when so applied, the first aid dressing, which is usually non-adherent to the wound or burn, is inflated away from the wound or burn by means of positive pressure created by moisture vapor issuing from the burn or wound or the uninjured parts of the body which are covered by the first aid dressing or entrapped air heated by the skin. The first aid dressing is permeable to air and moisture vapor, but impermeable to liquid water and other liquids which do not wet the hydrophobic film and also to air-or water-borne bacteria, etc.</p> |
