Abstract: A biosensor intended to be integrated in the actual structure of a dressing, a compress or any other similar absorbent article. This biosensor makes it possible to monitor the onset of a microbiological infection of a wound and/or of a skin lesion. The biosensor includes a piece of absorbent hydrophilic material on which, on the surface and/or within the thickness thereof, a composition of agglomerated powders is immobilized, the composition including ethylene-vinyl acetate (EVA) particles having a surface partially coated at least with a salt of orthophosphoric acid and a visual indicator of microbiological growth.

Abstract: The present invention relates to a non-implantable medical device (1, 1?) intended to cover wounds and skin lesions, comprising a biosensor (3E, 3E?), characterised in that said biosensor (3E, 3E?) comprises a piece made of absorbent, hydrophilic material fixing, on the surface and/or within the thickness thereof, a composition of agglomerated powders comprising particles of ethylene vinyl acetate (EVA) having a surface in part covered with at least one orthophosphoric acid salt and a visual indicator of microbiological growth. In particular, the medical device (1, 1?) may comprise several layers in order to enable the guiding of a liquid. The present invention relates to a method for preparing such a medical device (1, 1?).