Abstract
The present invention relates to a fluid-permeable primary dressing in strip form, having pores, perforations or honeycomb lattices, which enable the passage of fluid, further having a coating of a material comprising silicone.
Claims
1. A fluid-permeable primary dressing in strip form, said primary dressing comprising: a film provided with a plurality of pores or perforations arranged in linear rows; and discrete stripe-shaped bands of a silicone coating applied to the film that separate the linear rows from each other; wherein said pores or perforations enable the passage of fluid, wherein said linear rows are parallel to each other, wherein the pores or perforations are in three-dimensional form, and wherein the primary dressing is a wound contact lattice.
2. The primary dressing as claimed in claim 1, wherein the primary dressing has one rough and one smooth side.
3. The primary dressing as claimed in claim 2, wherein the coating is placed on the rough and/or the smooth side.
4. The primary dressing as claimed in claim 1, wherein the primary dressing further comprises a gauze or a tissue containing pores and/or honeycomb lattice.
5. The primary dressing as claimed in claim 1, wherein the primary dressing additionally has punched holes, slits, incisions and/or recesses which serve to facilitate the passage of fluid.
6. A wound dressing having a covering which at least partially consists of a primary dressing as claimed in claim 1.
7. The wound dressing as claimed in claim 6, wherein said wound dressing contains a wound exudate-absorbing body.
8. The wound dressing as claimed in claim 7, wherein the wound exudate-absorbing body has a pattern of incisions and/or punched holes.
9. The wound dressing as claimed in claim 8, wherein the pattern of incisions and/or punched holes are formed and/or arranged such that they facilitate the entry of fluid into the wound dressing.
10. The wound dressing as claimed in claim 7, wherein the wound exudate-absorbing body is a mat with incorporated superabsorbent polymers and/or a loose filling of superabsorbent polymers.
Description
DESCRIPTION OF THE DRAWINGS
(1) The invention is non-restrictively illustrated by way of example in the attached drawings, where:
(2) FIG. 1 shows a top plan view of a fluid-permeable primary dressing in strip form with perforations;
(3) FIG. 2 shows a cross-section views of perforations with projections;
(4) FIG. 3 shows a cross-section-view of a wound dressing with a planar absorption body and a covering;
(5) FIG. 4 shows a cross-section view of perforations without projections;
(6) FIG. 5 shows a top plan view of another embodiment of a fluid-permeable primary dressing in strip form with perforations;
(7) FIG. 6 shows a top plan view of yet another embodiment of a wound care product;
(8) FIG. 7 shows a top plan view of yet embodiment of a wound care product;
(9) FIG. 8 shows top plan views of further embodiments of wound care articles; and
(10) FIG. 9 shows a cross-section view of perforations.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
(11) FIG. 1 shows a fluid-permeable primary dressing in strip form, having perforations 2 which enable the passage of fluid. The primary dressing is accommodated in a sterile pack 9. The primary dressing has a sheetlike coating of silicone. FIG. 1 further shows a silicone coating in the form of silicone bands 3 applied to the primary dressing in stripe-shaped form.
(12) FIG. 2 shows said perforations in cross-section. Here it can be discerned that the latter preferably have conically shaped walls, which in turn extend irregularly into projections oriented approximately perpendicular to a perforation axis A. These projections can also be bent over inwards or outwards, as shown on the right-hand side of FIG. 2.
(13) The structure of the perforations described contributes to the fact that the absorbed wound exudate can only flow back in the direction of the wound with difficulty, hence said projections are not absolutely necessary.
(14) FIG. 3 shows a wound dressing with a planar absorption body and a covering which in sections consists of a primary dressing as claimed in one of the previous patent claims (dashed line). Said primary dressing can augment (double) the actual covering wall on the side in question or else replace it (not shown). Said wound dressing additionally has a wound exudate-absorbing body.
(15) Deviating from the portrayal in FIG. 3, the primary dressing can also surround the absorption body on all sides, and thereby augment or else replace the covering. The welds (for example ultrasound welds), differently from the representation can also be bent inwards (the covering thus being as it were drawn leftwards), in order to form soft edges pleasant for the wound contact.
(16) FIG. 4 also shows said perforations in cross-section, this time in a naturalistic representation. Here it can be seen that the projections described in FIG. 2 no longer occur.
(17) FIG. 5 shows a fluid-permeable primary dressing in strip form similar to that in FIG. 1, having perforations. Here also, the perforations open towards the wound and thus form said rough, abrasively acting surface. The fluid-permeable primary dressing in strip form can partly or wholly act as the covering for a wound care product containing an absorbent body. Further, this wound care product has punched holes, slits, incisions and/or recesses for example in the form of elongated holes, squares and/or crosses, which serve to facilitate the passage of fluid.
(18) This is particularly advantageous when the material consists of a three-dimensional film material with openings or perforations turned outwards or towards the wound, which impart to the wound care product a rough outer surface and thus abrasive properties. Through the abrasive properties, the exudation of the wound is stimulated and fluid accumulations in the upper wound area can occur, which have to be removed. The said punched holes, slits, incisions and/or recesses ensure facilitated passage and effective and rapid absorption of the exudate which is created by use of the wound care product according to the invention.
(19) FIG. 6 shows a top view of a wound care product 70 having a covering 71 with a weld 72, which consists of a primary dressing according to the invention, preferably with openings or perforations turned outwards, which impart to the wound care product a rough surface and hence abrasive properties, and a flat absorption body 73 of a nonwoven or airlaid material containing superabsorbent polymers.
(20) The covering forms an expansion space 74 so that it is ensured that the absorption body can increase in volume on absorption of fluid and is not restricted by the covering. The planar absorption body 73 has a pattern of L-shaped incisions 75 which are introduced into the absorption body by means of an appropriately shaped punch tool. In this way, the entry of fluid into the wound care product is considerably facilitated. This feature displays particular advantages in combination with the covering of three-dimensional film material with openings or perforations oriented outwards, which impart to the wound care product a rough outer surface and hence abrasive properties.
(21) Differently from the representation in FIG. 6, the weld 72 (for example ultrasound weld) can also be turned inwards (the covering thus being as it were drawn leftwards), in order to form soft edges pleasant for the wound contact.
(22) FIG. 7 shows a top view of a wound care product 80, having a covering 81 formed similarly to that in FIG. 1 from the primary dressing according to the invention and a planar absorption body 83 of a nonwoven or airlaid material containing superabsorbent polymers. The planar absorption body 83 has a planar pattern of punched holes 85, which are introduced into the absorption body by means of an appropriately shaped punch tool. In this way, the entry of fluid into the wound care product is considerably facilitated. Further, the adaptability of the originally relatively stiff absorption body is increased, so that a wound care product is produced which adapts gently to the wound relief, is experienced by the patient as very soft and pleasant and through the close contact with the wound can fully exercise its wound exudate-absorbing function.
(23) FIG. 8 shows further embodiments of the wound care product according to the invention, wherein the punched holes and/or incisions, which are sometimes implemented together in one wound care product, facilitate entry of the wound fluid into the wound care product.
(24) FIG. 9 shows the perforations once more in cross section. Silicone coatings are depicted on said perforations by way of example after application thereto in cross-sectionally point-, drop- or line-shaped form.
