Abstract: Occlusive dressing system, which comprises an endless, elongated, flexible, adhesive barrier, adapted to be arranged in a closed configuration, whereby to bound and define a surface area, and an impermeable sealing film adapted to overlie said surface area and to isolate it from the environment, when superimposed to said barrier arranged in said configuration, said barrier forming a gas-tight seal with said sealing film when the two are applied to and pressed against one another. A spreading mechanism that alows a single person to spread the sealing film over the occluding barrier and to detach the film from the main roll and ports (inlet and outlet) that can be placed across the barrier or the occluding film.

Abstract: Disclosure relates to a unit dose debriding matrix carrier, comprising a housing containing lyophilized or otherwise dried debriding agent, the housing being made of porous material so as to allow passage of the debriding agent therethrough when a liquid is applied thereto, the carrier further having a polygonal shape such that a plurality of identical carriers can be placed around it, to fill a wound area. This application also relates to a placing device for a unit dose debriding matrix carrier, comprising elastic holding means to hold the matrix in place within the device and to release the carrier when a light pressure is applied on the device, and a unit dose powder/vehicle-carrier-gel mixing and placing device comprising unit dose powder and vehicle containers and means for joining said containers and mixing the countenance aspeticly and extracting the mixture onto the wound.