Provided is a perforated plastic film comprising a plastic film having a large number of through holes, and the perforated plastic film has a moisture permeability of 300 to 3500 g/m.sup.2.Math.24 h and has a low skin irritation potential.

The invention relates to a wound care arrangement comprising a covering unit that can be fixed on the skin surrounding a wound and that serves for producing a closed wound space comprising the wound, and a suction connection via which a vacuum can be produced in the wound space, wherein the covering unit is penneable to water vapor at least in sections.

A dressing for an open wound includes a cover layer dimensioned for positioning relative to a wound bed. The cover layer permits an evacuation of the space around the wound bed such that a sub-atmospheric pressure may be established to stimulate healing and facilitate the removal of fluid from the wound. Multiple performance zones in the cover layer allow the wound dressing to remain in position through repeated cycles of evacuation without placing undue strain on the wound bed. An outer peripheral zone may include a high peal-strength adhesive while an intermediate zone may include a shear resistant adhesive. A central zone may be devoid of any coating to maximize moisture transmission through cover layer.

A backing sheet for use in a wound dressing includes a semipermeable continuous film laminated to an adhesive-coated apertured layer. The apertured layer is a solid substrate coated with a medically acceptable adhesive. A method of making a backing sheet for use in a wound dressing includes the steps of: forming an adhesive-coated apertured layer by coating a medically acceptable adhesive onto an apertured solid substrate, followed by laminating the adhesive-coated apertured layer to a semipermeable continuous film.

A dressing for an open wound includes a cover layer dimensioned for positioning relative to a wound bed. The cover layer permits an evacuation of the space around the wound bed such that a sub-atmospheric pressure may be established to stimulate healing and facilitate the removal of fluid from the wound. Multiple performance zones in the cover layer allow the wound dressing to remain in position through repeated cycles of evacuation without placing undue strain on the wound bed. An outer peripheral zone may include a high peal-strength adhesive while an intermediate zone may include a shear resistant adhesive. A central zone may be devoid of any coating to maximize moisture transmission through cover layer.

A dressing for an open wound includes a cover layer dimensioned for positioning relative to a wound bed. The cover layer permits an evacuation of the space around the wound bed such that a sub-atmospheric pressure may be established to stimulate healing and facilitate the removal of fluid from the wound. Multiple performance zones in the cover layer allow the wound dressing to remain in position through repeated cycles of evacuation without placing undue strain on the wound bed. An outer peripheral zone may include a high peel-strength adhesive while an intermediate zone may include a shear resistant adhesive. A central zone may be devoid of any coating to maximize moisture transmission through cover layer.

The invention relates to a wound care arrangement comprising a covering unit that can be fixed on the skin surrounding a wound and that serves for producing a closed wound space comprising the wound, and a suction connection via which a vacuum can be produced in the wound space, wherein the covering unit is penneable to water vapor at least in sections.

Herein is disclosed a composition for application to a wound comprising: a first layer comprising a skin adhesive, wherein the first layer has a wound-facing side and a non-wound-facing side and, in a first area, apertures extend through the first layer from the wound-facing side to the non-wound-facing side; and a second layer disposed on a non-wound-facing side of the first layer, the second layer comprising a polymeric film that is continuous in that it extends over and covers each of the apertures of the first layer, the second layer having a moisture vapour transmission rate (MVTR) of at least 500 g/m.sup.2/24 hours, measured in accordance with BS EN 13726-2:2002, wherein the composition further comprises a third layer disposed between the first layer and second layer, the third layer being a supporting layer for the first layer, the third layer having apertures therethrough, substantially corresponding to the apertures in the first layer. A method of making such a composition is also disclosed.

A backing sheet for use in a wound dressing, comprising a semipermeable continuous film laminated to an adhesive-coated apertured layer, wherein the apertured layer comprises a solid substrate coated with a medically acceptable adhesive. Also provided is a method of making a backing sheet for use in a wound dressing, said method comprising the steps of: forming an adhesive-coated apertured layer by coating a medically acceptable adhesive onto an apertured solid substrate, followed by laminating the adhesive-coated apertured layer to a semipermeable continuous film.

Wounds and temporary appliances can be protected against liquid contamination using a prophylactic dressing. The dressing includes a liquid resistant sheet and disposed thereon a first liquid barrier/adhesive strip and a second liquid barrier/adhesive strip wherein the first and second liquid barrier/adhesive strips are concentric; located at or near the periphery of the liquid resistant sheet; and are separated from one another by a gap. Adsorbent's and liquid indicators can be employed within the gap to add further functionality to the dressing. Also disclosed herein is a support useful for stabilizing leads to transcutaneous or percutaneous devices.