WOUND DRESSING

Abstract

The invention relates to a wound dressing comprising a carrier layer and an absorbent wound contact layer fixed to the carrier layer, which has wound contact surfaces spaced from one another by interstices in which the wound contact layer is not in contact with the wound, the wound contact layer being designed to be absorbent overall and in that the wound contact surfaces are connected to each other by connection regions of the wound contact layer.

Claims

1. Wound dressing with a carrier layer and an absorbent wound contact layer fixed to the carrier layer, which has wound contact surfaces spaced from one another by interstices in which the wound contact layer has no contact with the wound, the wound contact layer being designed to be absorbent overall, characterized in that the wound contact surfaces are connected to each other by connection regions of the wound contact layer.

2. Wound dressing according to claim 1, characterized in that the wound contact layer in at least one connecting region has a smaller thickness in a direction perpendicular to the carrier layer plane than in the region of the contact surfaces.

3. Wound dressing according to one of the preceding claims, characterized in that the wound contact layer has approximately the same thickness in at least one connecting region as in the region of the wound contact surface and also comes into contact with the wound in this region.

4. Wound dressing according to one of the preceding claims, characterized in that the wound contact layer is at least partially bounded concavely.

5. Wound dressing according to one of the preceding claims, characterized in that at least two wound contact surfaces are at least partially approximately parallel to each other and preferably formed by approximately rectilinear wound contact strips.

6. Wound dressing according to claim 5, characterized in that the distance between the wound contact strips is 0.5 mm or more, and/or 10 mm or less.

7. Wound dressing according to claim 5 or 6, characterized in that the wound contact strips emanate from a common wound contact bar, which preferably extends perpendicular to the wound contact strips.

8. Wound dressing according to claim 7, characterized in that at least two wound contact strips emanating from the wound contact bar extend in opposite directions.

9. Wound dressing according to one of claims 5 to 8, characterized in that at least one wound contact strip is connected at its one end via a preferably curved connection region to a first adjacent wound contact strip and at its other end via a further connection region to a second adjacent wound contact strip arranged at a side of the at least one wound contact strip opposite to the first adjacent wound contact strip.

10. Wound dressing according to one of the preceding claims, characterized in that the wound contact layer comprises or is a hydrogel and/or silica gel.

11. Wound dressing according to one of the preceding claims, characterized in that an adhesive layer is arranged between the carrier layer and the wound contact layer.

12. Wound dressing according to claim 11, characterized in that the adhesive layer and/or the wound contact layer is covered by at least one cover strip detachably mounted thereon and preferably made of silicone paper.

13. Wound dressing according to one of the preceding claims, characterized in that the carrier layer comprises or consists of a preferably transparent and/or water vapor-permeable PU film.

14. Wound dressing according to one of the preceding claims, characterized by a support layer, in particular a support film, detachably mounted on the side of the carrier layer facing away from the wound contact layer.

15. Wound dressing according to claim 14, characterized in that the support film is preferably connected via at least one film hinge with at least one cover strip.

Description

[0022] In the following, the invention will be explained with reference to the drawing, to which reference is expressly made with regard to all details essential to the invention and details which are not further detailed in the description. In the drawing shows:

[0023] FIG. 1 a first embodiment of a wound dressing according to the invention,

[0024] FIG. 2 a second embodiment of a wound dressing according to the invention,

[0025] FIG. 3 a third embodiment of a wound dressing according to the invention and

[0026] FIG. 4 A fourth embodiment of a wound dressing according to the invention.

[0027] In FIG. 1a) a top view of a wound dressing according to the invention is shown. FIG. 1b) shows a sectional view of the wound dressing shown in FIG. 1a). According to FIG. 1b), the wound dressing comprises a carrier layer 10, on which a wound contact layer 30 is fixed with the aid of an adhesive layer 20. The adhesive layer 20 circumscribes the wound contact layer 30 and thus makes it possible to fix the wound dressing in this peripheral adhesive area on the skin surrounding the wound. According to FIG. 1b), the wound contact layer 30 is covered by cover strips 40 and 42 on its side facing away from the carrier layer 10. The cover strips 40 and 42 are connected by hinges 50, which run around edges of the carrier layer 10, to a support film 60.

[0028] For application of the wound dressing illustrated in FIG. 1b), the cover strips 40 and 42 are released from the wound contact layer 30 or the surrounding adhesive region 12. The wound dressing can then be fixed with the aid of the adhesive layer 20 on the skin surrounding the wound. Following this, the cover strips 40 and 42 can be used as grasping aid with which the support film 60 connected thereto via the hinge joints 50 can be removed from the side of the carrier layer 10 facing away from the wound.

[0029] According to FIG. 1a), the wound contact layer 30 has a total of six wound contact strips 32, which are spaced apart from one another by gaps 36. In the area of the intermediate spaces 36, the carrier layer 10 is not covered by the wound contact layer 30. The wound contact strips 32 extend approximately parallel to each other and extend from a wound contact bar 34 in opposite directions approximately parallel to the edges of the carrier layer 10. The wound contact layer 30 according to the embodiment of the invention shown in FIG. 1 has in all areas a thickness of about 0.5 to 1.5 mm, in particular about 1 mm. In use it preferably lies completely against the wound on its side facing the wound.

[0030] The embodiment of the invention illustrated in FIG. 2 differs essentially from the embodiment shown in FIG. 1 in that the wound contact strips are 32 narrower and the interstices, in the region of which the substrate layer is not covered by the wound contact layer, are wider. As a result, a better flexibility of the wound dressing is achieved.

[0031] The embodiment of the invention illustrated in FIG. 3 essentially differs from the embodiment explained with reference to FIG. 1 in that a total of eight narrow contact strips extend in mutually opposite directions approximately parallel to one another starting from a wound contact bar 34. In this embodiment too, the flexibility of the wound dressing is increased by increasing the number of intermediate spaces in which the carrier layer is not covered by the wound contact layer. In addition, by increasing the number of strips in the in FIG. 3 embodiment, the absorption capacity can be increased.

[0032] In the embodiment of the invention shown in FIG. 4, the wound contact layer is made approximately meander-shaped. A total of four wound contact strips 32 are connected to one another via a total of three connection regions. The middle wound contact strips are connected at their one end via a curved connection region to a first adjacent wound contact strip extending approximately parallel thereto and at another end via a further connection region to a second adjacent wound contact strip arranged at a side of the at least one wound contact strip opposite to the first adjacent wound contact strip.

[0033] The invention is not limited to the embodiments explained with reference to the drawing. It is also thought of wound contact layers revolving spirally. Two, three or more wound contact bars can be provided, via which the wound contact strips can be connected to one another. It is essential that the wound contact layer as a whole constitutes a coherent structure which is fixed to the carrier layer and forms intermediate spaces in which no contact of the wound contact layer with the wound takes place.