Adaptive compression dressing with cohesive fasteners

Abstract

The invention relates to a dressing (100) designed to be applied to a limb (500) for compression therapy. The dressing (100) has an elastic dressing material for wrapping around the limb (500) and a dressing inner surface (101) and a dressing outer surface (102), which extend in a longitudinal direction (LR) between two lateral dressing edges (105, 106) and in a transverse direction (QR) transversely to the longitudinal direction (LR). The dressing (100) also has a dressing portion (110), the inner surface (101) of which is designed to be applied to the limb (500), and at least one fastener portion (120) which is provided on one of the lateral dressing edges (105, 106) and designed to wrap around the limb (500) in order to generate a tensile stress in the dressing portion (110). Furthermore, the dressing (100) has at least one cohesive dressing surface segment (130) on the dressing inner surface (101) and on the dressing outer surface (102), a cohesive material being provided on each said segment. On the dressing inner surface (101) at least the fastener portion (120) has the one cohesive dressing surface segment (130) in order to releasably close the applied dressing (100) when the fastener portion (120) overlaps with the dressing outer surface (102). The invention also relates to a dressing system (200) comprising the dressing (100) and to a method for applying the dressing (100).

Description

[0001] Adaptive compression bandage with cohesive closures

[0002] The present invention relates to a bandage for application to a body extremity for compression therapy, made of an elastic bandage material. The invention further relates to a bandage system comprising the bandage according to the invention and a textile for wearing underneath. The invention also relates to a method for applying the bandage and the use of this bandage for compression therapy.

[0003] Compression therapy is frequently used to support the flow of blood back to the heart through the venous system. Typically, compression garments, such as bandages, wraps, stockings, or arm slings, are applied to a body part to exert external pressure on the venous system. These garments are usually tailored to the patient's anatomy and compression needs. The resulting pressure constricts the veins, thereby increasing the blood flow velocity.

[0004] Applying compression garments to the patient's body part is usually done by medical professionals and only occasionally, as it requires a certain amount of skill and experience, by trained laypersons or patients. Compression therapy is only effective, for example, if the garments are applied tightly enough. At the same time, care must be taken to ensure that the garments do not constrict the limbs in a way that is uncomfortable or even dangerous for the patient.

[0005] Adaptive compression garments enable patients to put on their own compression garments to perform compression therapy. However, patients often struggle to put on compression garments themselves because they are not adjustable or are complex to use. Adaptive compression garments typically feature closures that allow the compression pressure to be adjusted.

[0006] For example, an adaptive bandage can be used that encloses an affected body part and, if it comes into contact with itself, can be closed using a hook-and-loop fastener to apply the desired compression pressure. Other closure mechanisms are also known from the prior art, such as hook closures, twist locks, laces, or zippers. For example, EP 3 512 479 B1 discloses a compression garment that has a closure element with a macroscopic hook which can be hooked into a mesh structure of an outer layer of the compression garment in order to close the garment by generating a compression force and to maintain the compression force even after closure.

[0007] A disadvantage of using such closure mechanisms is that the production of corresponding compression garments becomes complex and expensive, as a variety of different materials and manufacturing steps are required. Furthermore, putting on and taking off such compression garments is more difficult. For example, it can be challenging for patients with limited mobility to release the Velcro fastener, as a sudden, forceful removal is often necessary. Especially when compression garments are used in conjunction with bony prominences or open wounds, removing the garment can be uncomfortable, as these areas are very sensitive to pressure points.These closure mechanisms also lack the flexibility to adapt to changes in anatomy (such as swelling or shrinkage of the affected body part) or the need for compression pressure, because with a hook-and-loop fastener, for example, it must be ensured that the hook part of the closure always lies on the corresponding mesh section. If a bandage is to be wrapped beyond the mesh section, for instance, it can no longer be closed.

[0008] It is an object of the present invention to at least partially overcome the disadvantages described above. In particular, it is an object of the present invention to provide devices, such as a medical bandage, and methods that reduce the complexity of the manufacture and application of compression textiles while still enabling compression therapy.

[0009] This problem is solved by the subject matter of the independent claims. Advantageous embodiments and further developments of the invention are described in the dependent claims.

[0010] Furthermore, additional advantages and features of the invention will become apparent from the description and the drawings. Features and details described in connection with the bandage according to the invention naturally also apply in connection with the bandage system according to the invention, its use according to the invention, and the method according to the invention for applying the bandage, and vice versa, so that, with regard to the disclosure of the individual aspects of the invention, mutual reference is always made or can be made. One aspect of the invention relates to a bandage for application to a body extremity for compression therapy. The bandage comprises an elastic bandage material for wrapping around the body extremity. Furthermore, the bandage has an inner surface and an outer surface. The inner surface and the outer surface each extend longitudinally between two lateral edges of the bandage.Furthermore, the inner and outer surfaces of the bandage extend transversely to the longitudinal direction. The bandage has a section for contact with the inner surface of the bandage on the extremity. The bandage also has at least one closure section to wrap around the extremity and create tensile tension within this section. The closure section is located at one of the lateral edges of the bandage. The bandage has at least one cohesive bandage segment on its inner surface. The bandage also has at least one cohesive bandage segment on its outer surface. Each of the cohesive bandage segments is made of a cohesive material.On the inner surface of the dressing, at least the closure section has at least one cohesive dressing surface segment in order to detachably close the applied dressing when the closure section overlaps with the outer surface of the dressing.

[0011] In other words, the invention provides a compression therapy bandage which, after being applied to a body extremity, can be detachably closed via a cohesive closure between two sections on the front and back.

[0012] In the context of the invention, a "bandage" can be understood to mean, in particular, a medical textile. For example, the bandage can be a wrap, an adaptive compression bandage, a wrap, and / or a dressing. Preferably, the bandage can be a wrap or dressing for a leg, foot, or arm. Unlike wound dressings, where the primary purpose is to cover an injured body part, the bandage according to the invention is intended for compression therapy and therefore comprises an elastic bandage material. Compared to wound care, compression therapy may require higher stiffness and / or strength to generate compressive forces. At the same time, the bandage can exhibit greater flexibility than support bandages or orthoses, which are primarily used to support body parts.In addition to characteristics arising from the intended use of the bandage, it can also be distinguished from elastic bandages, for example, by its geometry. Bandages are typically provided as longer strips of fabric and therefore have a significantly greater longitudinal than transverse extent. The bandage according to the invention, on the other hand, can have a more balanced ratio between longitudinal and transverse extent. It is also conceivable that the transverse extent of the bandage can exceed its longitudinal extent. Alternatively or additionally, the bandage according to the invention can have one or more longitudinal extents, each corresponding to at least one adjustable compression pressure.Preferably, the bandage can be configured in its longitudinal direction to allow for the setting of other defined compression pressures between a minimum and a maximum compression pressure for compression therapy. Furthermore, preferably, the bandage can be configured in its transverse direction to set a location for a defined compression pressure.

[0013] Furthermore, an "elastic dressing material" can be understood to mean, in particular, a flexible and stretchable textile material. The stiffness of the dressing can be described, for example, by its modulus of elasticity. Preferably, the elastic dressing material has a modulus of elasticity of 4-10 N / mm². 2 , preferably 5-9 N / mm 2 and especially preferably 6-8 N / mm 2exhibiting certain properties. For example, a material suitable for a long-stretch bandage (elongation > 100%-120%) can be used as the dressing material. For instance, the elastic dressing material can contain elastane, which preferably exhibits an elongation of 150% in the longitudinal direction under a load of 3 N / cm on a test bench according to DIN 61632.

[0014] The binder has an inner binder surface and an outer binder surface, each extending in a longitudinal direction between two lateral binder edges and in a transverse direction perpendicular to the longitudinal direction.

[0015] The terms "inner surface of the tile" and "outer surface of the tile" can refer, in particular, to the front and back of the tile. The "lateral edges of the tile" can further be understood, in particular, as the edges that define the longitudinal boundaries of the tile, or as edge segments or border sections. If, for example, the tile has a circular shape with only one circumferential edge, the lateral edges of the tile can be formed by two opposing segments of the circumferential edge. In such cases, the size and position of the lateral edges of the tile can be derived, for example, from the extension geometry of the inner and outer surfaces of the tile. Preferably, the lateral edges of the tile can extend continuously and / or discontinuously along the transverse direction, e.g., as steps.

[0016] The bandage has a section for placing the inner surface of the bandage on the extremity. The bandage also has at least one closure section on one of the lateral edges to wrap around the extremity and create tension in that section.

[0017] Under the "Association subsection" 1The term "closure section" can be understood to refer specifically to a part of the bandage used to transmit a compressive force to the body part when applied. The term "closure section" can also refer specifically to a part of the bandage by means of which the bandage is closed. The closure section can preferably be movably arranged relative to the bandage section. The position specification "on one of the lateral edges of the bandage" can be understood specifically as an arrangement directly on or in the immediate vicinity of one of the lateral edges of the bandage. Preferably, the generated tensile stress creates a tension that stretches the bandage material. Preferably, the tensile stress can act not only in the bandage section but in the entire bandage.

[0018] The bandage has at least one cohesive bandage surface segment on both the inner and outer surfaces. Each cohesive bandage surface segment extends across a cohesive material.

[0019] A "cohesive material" can be understood to be, in particular, a self-adhesive substance. Preferably, an adhesive bond can be formed only between two identical cohesive materials. Accordingly, the cohesive material can prevent adhesion to, for example, skin or clothing. Instead, adhesion can only occur between the respective cohesive surfaces. The cohesive material can, for example, be natural rubber latex or a synthetic, latex-free adhesive. A "cohesive surface segment" can be understood, in particular, as a region or partial area on the dressing that exhibits cohesive properties. The adhesive force between two cohesive dressing surface segments can preferably be 5–150 cN / cm, more preferably 30–100 cN / cm, and even more preferably 40–80 cN / cm. Preferably, the cohesive bond can be repeatedly formed and broken.On the inner surface of the dressing, at least the closure section has at least one cohesive dressing surface segment in order to detachably close the dressing when the closure section overlaps with the outer surface of the dressing.

[0020] In this context, a "releasable closure" can be understood to mean, in particular, a non-destructive release of the adhesive bond.

[0021] This makes it possible to provide a compression therapy bandage that does not require separate closure elements. Instead, impregnation or coating of the bandage with a cohesive material can provide the closure function. This significantly simplifies the production of the bandage and reduces costs. Furthermore, the cohesive closure function allows even inexperienced individuals to apply the bandage easily. Even with minimal overlap, a secure closure can be achieved, requiring only short wrapping distances. This enables independent application of the bandage, particularly for patients with limited mobility or those with difficult-to-reach application sites.This can also significantly increase comfort when applying or removing the bandage, as the bandage can be attached to sensitive areas of the body with lower pressure peaks.

[0022] With their invention, the inventors were thus able to overcome the previously existing prejudice in the prior art that cohesive materials were unsuitable for compression bandages and therefore not to be considered. Until now, cohesive materials have primarily been used in conjunction with longitudinally elastic cohesive bandages, as shown, for example, in EP 3 393 413 B1.

[0023] For a secure closure of the bandage, it may be advantageous if at least one cohesive bandage surface segment on the inner surface of the bandage is arranged at least partially offset longitudinally from a cohesive bandage surface segment on the outer surface of the bandage. The cohesive bandage surface segments can extend in the transverse and / or longitudinal direction.

[0024] To allow for the adjustment of different compression pressures and / or to increase the adhesive forces for closing the bandage, it can be advantageous, according to a preferred embodiment, for the bandage to have several cohesive bandage surface segments on the outer surface and / or the inner surface. Preferably, the cohesive bandage surface segments can be arranged spaced apart from one another longitudinally. Furthermore, preferably, at least one of the cohesive bandage surface segments can extend completely over the outer surface and / or the inner surface of the bandage. They can also be arranged at uniform or varying intervals from one another longitudinally. For example, the bandage surface segments can be arranged on the same bandage surface, decreasing in size towards one lateral edge of the bandage.

[0025] To achieve a uniform wrapping around the body part to be wrapped, it can be advantageous if the at least one cohesive bandage segment on the outer surface of the bandage is arranged at the same distance to a transverse edge of the bandage as the at least one cohesive bandage segment on the inner surface of the bandage. The transverse edge of the bandage is preferably an edge of the bandage that extends transversely to the two lateral edges of the bandage. Alternatively or additionally, the at least one cohesive bandage segment on the outer surface of the bandage can be arranged centrally in the longitudinal and / or transverse direction.

[0026] In order to securely close the bandage with slightly more than one wrap but less than two wraps (preferably 1.5 wraps), it may be advantageous if at least one cohesive bandage surface segment is arranged on the outer surface of the bandage within an arrangement area of ​​the outer surface of the bandage, which extends from the corresponding other lateral edge of the bandage by up to two-thirds of the longitudinal extent of the bandage in the longitudinal direction.

[0027] For a secure closure of the dressing, it can be advantageous if the cohesive dressing surface segments have an identical cohesive material. Preferably, the cohesive material can be arranged to form a cohesive bond when at least two cohesive dressing surface segments are brought into contact. Furthermore, preferably, the cohesive bond can be formed when pressure is applied.

[0028] To facilitate the production of the dressing, it may be advantageous, for example, if the cohesive dressing surface segments have a binder, an impregnation, or a coating with the cohesive material. Preferably, the cohesive material is polyisoprene.

[0029] To provide sections of the dressing with different functions, it can be advantageous for the dressing to have at least a partial layered structure. Preferably, the layered structure can include a dressing layer made of the dressing material and a padding layer made of padding material.

[0030] Furthermore, trials with this preferred configuration revealed that a combination of padding and a dressing material with cohesive dressing surface segments offers significant advantages over a cohesive layer alone, as sliding of the overlapping layers in the areas outside the flaps is necessary to build up compression pressure evenly.

[0031] For example, to provide padding for contact between the bandage and the body part, it may also be advantageous if at least the bandage section has the layered structure and preferably the padding layer is arranged in the layered structure on the inner surface of the bandage.

[0032] Preferably, the dressing layer and / or the padding layer can have a thickness in the range between 0.6 and 1.2 mm.

[0033] To increase wearing comfort and prevent the dressing from slipping, it can be advantageous for the padding layer to be arranged as one or more preferably spaced-apart strips of padding material on the dressing section. Furthermore, the padding layer can preferably comprise one or more layers of nonwoven fabric. For example, the padding material in the padding layer can be polypropylene. Alternatively or additionally, the padding layer can preferably be firmly attached to the dressing layer. The padding layer can, for example, be sewn onto the dressing layer, ultrasonically welded, or glued to it. Alternatively or additionally, the dressing section can be formed as a flat surface.

[0034] For a secure closure of the dressing, it can be advantageous if the padding layers of two adjacent dressing sections are connected by a connecting section between the dressing sections. This connecting section can have at least one cohesive dressing surface segment on its inner surface.

[0035] To provide a dressing with a material particularly suitable for compression therapy, for example, due to its elasticity, it may be advantageous for the material to consist of a polyester fleece sewn with elastane, a woven fabric, a knitted fabric, or a fabric composition comprising at least one fiber or yarn that is stretchable in at least one direction. Furthermore, it may be advantageous for the closure section to extend at least partially, preferably completely, along one lateral edge of the dressing in the transverse direction. Alternatively or additionally, the closure section may extend longitudinally between one lateral edge of the dressing and the dressing section. Preferably, the closure section may extend from one lateral edge of the dressing in the longitudinal direction to a length of up to one-third of the dressing's length.

[0036] Furthermore, the closure section can preferably extend at least partially, and preferably completely, along the two lateral edges of the bandage in the transverse direction. This configuration can be used, for example, in bandages where the two lateral edges are not connected by a transverse edge, such as bandages with a circular or triangular cross-section.

[0037] To facilitate easy handling of the bandage, it may be advantageous for the closure section to be designed as a strap or tab. Preferably, the closure section can be permanently or integrally connected to the bandage section.

[0038] To create different and independent pressure zones through the bandage, it can be advantageous for the bandage to have at least two bandage sections and at least two corresponding closure sections. The bandage sections can be arranged side by side in the transverse direction. Preferably, two adjacent closure sections can be separated by a longitudinal slit in the bandage material. The slit can extend from one of the lateral edges of the bandage to the bandage sections.

[0039] For ease of use of the bandage, the closure sections can each be arranged on the same lateral edge of the bandage.

[0040] To increase the compression forces and slip resistance of the bandage, the closure sections can alternatively or additionally be arranged on different of the two lateral edges of the bandage. The closure sections can be alternately positioned on one or the other lateral edge of the bandage along the transverse direction.

[0041] Preferably, the closure sections can be configured with different compression zones in the longitudinal direction, each with different compression strengths, by means of wrapping. Alternatively or additionally, the closure sections can have at least partially different lengths extending along the longitudinal direction to the corresponding lateral bandage edge. Preferably, the respective length along the longitudinal direction can correspond to an adjustable compression strength.

[0042] For a secure closure of the dressing, it may be advantageous if at least one corresponding cohesive dressing surface segment is arranged on the outer surface of the dressing for each of the closure sections.

[0043] In order to provide compression pressures recommended for compression therapy with the bandage, it is useful if the bandage allows for a resting pressure between 1.3kPa and 5.3kPa, and / or a working pressure between 2.7kPa and 6.7kPa.

[0044] To facilitate handling of the bandage and to enable higher compression pressures, it may be advantageous for the bandage to have at least one pull tab extending longitudinally beyond the bandage section to the corresponding lateral bandage edge. Preferably, each pull tab can be arranged opposite a closure section with respect to the bandage section. In particular, the bandage can have at least two pull tabs, with each pair of pull tabs being separated by a longitudinal slit in the bandage material. The respective slit can extend from one of the lateral bandage edges toward the bandage sections. Preferably, the pull tab can have a cohesive bandage surface segment only on the outer surface of the bandage.

[0045] To enable correct adjustment and verification of the set compression pressure, it may be useful for the pull tab on the outer surface of the bandage to have at least one surface indicator to display at least one parameter for compression therapy. The surface indicator could, for example, have a scale or indicator to show the applied compression force.

[0046] To prevent the bandage from slipping and to facilitate its application, it can be advantageous for the bandage to also include a tubular section. The lateral edges of the bandage can be arranged as butt joints or overlapping and connected to each other on this tubular section to enclose a portion of the extremity with the inner surface of the bandage as an elastic tube. Preferably, the tubular section can also include at least one strap or tab. This strap or tab can be located on the outer surface of the bandage and connected to the tubular section. The strap or tab can also include at least one cohesive bandage surface segment.

[0047] In order to provide a bandage for application to a foot, it may be useful if the bandage is designed in such a way that the bandage extends in the transverse direction at least between a thigh area and a foot area as the body part to be wrapped.

[0048] Alternatively or additionally, the bandage can have at least two bandage sections arranged sequentially in the transverse direction for applying the bandage to different anatomical areas of limbs. For example, the bandage can have bandage sections for the leg, heel, and / or foot. Preferably, the bandage sections comprise at least two from the group consisting of a leg section for applying the bandage to a leg, a heel section for applying the bandage to the heel, and a foot section for applying the bandage to a foot. The bandage sections can be permanently connected to one another. Furthermore, the bandage sections can preferably have different elasticities and / or be made of different bandage materials.Preferably, at least one or each of the bandage sections can have at least one bandage subsection, a closure section with at least one cohesive bandage surface segment on the inner bandage surface, and at least one cohesive bandage surface segment on the outer bandage surface of the corresponding bandage section.

[0049] For a good fit of the medical garment to the leg area, it may be useful if the leg section has a rectangular or trapezoidal shape.

[0050] For a good fit of the medical garment to the foot area, it may be useful if the foot section has an "American FootbaH" shape or a lemon shape.

[0051] According to a preferred embodiment, the bandage can be designed for single use.

[0052] This is possible because the low manufacturing costs make a disposable system feasible. A disposable system can be advantageous for limited therapy durations or to support the initiation of therapy during the transition from the acute inpatient phase to a later phase. Furthermore, a disposable system is beneficial when hygiene conditions are questionable. Additionally, the adhesive strength of the cohesive dressing segments can be ensured throughout its lifespan.

[0053] To provide a reusable item, the bandage can alternatively be designed for multiple uses. Preferably, the cohesive material can be made insoluble with regard to washing processes.

[0054] Another aspect of the invention relates to a bandage system for compression therapy of a body extremity. The bandage system comprises the bandage described above. Furthermore, the bandage system includes a padding textile for application to the body extremity and for wrapping with the bandage, in order to apply compression to the body extremity via the padding textile. For example, the padding textile can be a stocking, a tubular bandage, a cuff, or a sock.

[0055] In this way, the same advantages can be achieved that have already been described with regard to the bandage. Furthermore, it is possible to clean the padding fabric in contact with the body without potentially damaging the bandage's cohesive properties.

[0056] Another aspect of the invention relates to the use of the previously described bandage or bandage system for compression therapy.

[0057] Another aspect of the invention relates to a method for applying the bandage described above. In this method, the bandage is placed with its inner surface onto a section of the user's extremity. The corresponding lateral edge of the bandage, opposite the closure section, is held in place longitudinally. The section of the extremity is wrapped with the bandage by guiding the closure section, applying a defined tensile force to generate a defined compression pressure. The closure section is overlapped with the outer surface of the bandage to create a releasable cohesive bond. Preferably, pressure can be applied to the closure section to create a pressure-activated cohesive bond.

[0058] A "defined contact pressure" can be understood in particular as a contact pressure intended by the user.

[0059] This allows for particularly easy handling when applying the compression bandage. The invention is explained in more detail below, for example, with reference to the drawings. These show:

[0060] Fig. 1 is a schematic top view of a truss according to an embodiment of the invention;

[0061] Fig. 2 a schematic side view of the assembly from Figure 1;

[0062] Fig. 3 shows a schematic top view of a ligament according to a further embodiment of the invention;

[0063] Fig. 4A is a photographic top view of a grouping according to a further embodiment of the invention;

[0064] Fig. 4B is a photographic view of the bandage from Figure 4A in its applied state on a clothed leg;

[0065] Fig. 4C is a schematic representation of Figure 4A;

[0066] Fig. 4D is a schematic representation of Figure 4B without clothing on the leg;

[0067] Fig. 5A a schematic top view of a ligament according to a further

[0068] Exemplary embodiment of the invention;

[0069] Fig. 5B is a schematic top view of a truss according to a further embodiment of the invention;

[0070] Fig. 6A is a schematic top view of a truss according to a further embodiment of the invention;

[0071] Fig. 6B is a schematic view of the assembly from Figure 6A in its applied state; and

[0072] Fig. 7 shows a schematic view of a manufacturing process for the bandage according to an embodiment of the invention, and

[0073] Fig. 8A is a schematic top view of a truss according to a further embodiment of the invention;

[0074] Fig. 8B shows a schematic top view of a ligament according to a further embodiment of the invention.

[0075] The same reference numerals are used below for identical and equivalent components. The figures show different views and different aspects of the invention.

[0076] One aspect of the invention relates to a bandage 100 for application to a body extremity 500 for compression therapy. Figure 1 shows a simplified embodiment of the bandage 100. The bandage 100 can, for example, be a wrap for a leg or foot area, as can be seen in particular from Figures 4B, 4D and 6B.

[0077] The bandage 100 features an elastic bandage material that can be wrapped around the extremity 500. The bandage material can be, for example, a polyester fleece sewn with elastane, such as that sold under the trade name KOB Nowopress Soft 755 (longitudinal elongation according to DIN 61632 at a load of 3 N / cm approx. 150%, basis weight approx. 49 g / m²). 2 , approx. 11g / m² 2 Polyisoprene adhesive (adhesive strength approx. 60 cN / cm). This is shown, for example, in Figures 4A and 4B. In Figures 4A and 4C, the seams 143 attached for this purpose are indicated by dashed lines.

[0078] Instead of polyester fleece, other textile materials, such as woven or knitted fabrics made of synthetic or natural fibers, can also be used as dressing material. Preferably, highly twisted yarns, stretchable fibers such as textured filament yarns, or elastane threads can be incorporated into the fibers. The knitted fabric preferably has a mesh shape that is stretchable in at least one direction.

[0079] The lamination 100 further comprises an inner lamination surface 101 and an outer lamination surface 102, each extending in a longitudinal direction LR between two lateral lamination edges 105, 106 and transversely in a transverse direction QR. This is shown by way of example in Figures 1 to 6 and 8. It is particularly evident from this that the lamination 100 extends in the transverse direction QR between two transverse lamination edges 107, 108.

[0080] The lateral bond edges 105, 106 and the transverse bond edges 107, 108 can each extend in a continuous straight line, as shown, for example, in Figures 1 to 3 and 8B. Alternatively, it is also conceivable that at least one of the lateral bond edges 105, 106 or the transverse bond edges 107, 108 has an arbitrary shape, such as a serpentine or curved shape, as shown, for example, in Figure 8A. Furthermore, shapes of the lateral bond edges 105, 106 are also conceivable in which the lateral bond edges 105, 106 extend discontinuously along the transverse direction QR, for example, as steps, or with projections and / or recesses. This is shown, for example, in Figures 4A to 6B. The bandage 100 also has at least one bandage subsection 110, with which the bandage 100 is to rest on the body extremity 500 with the inner bandage surface 101.In schematic figures 1 to 3, 5, and 8, the bandage section 110 is simplified as a section of the bandage 100. To increase the wearing comfort of the bandage 100, at least the bandage section 110 can have a layered structure 140, which, in addition to the bandage material as a bandage layer 142, also includes an elastic padding layer 141 made of padding material. The padding layer 141 is preferably arranged in the layered structure 140 such that it forms at least part of the inner surface 101 of the bandage. This is illustrated by way of example in figures 2 and 4A. The padding layer 141 itself can be composed of several nonwoven layers 1411, 1412. The padding layer 141 can, for example, consist of nonwoven layers made of polypropylene sewn together with elastane (longitudinal elongation according to DIN 61632 at a load of 3 N / cm of approximately 60%). The padding layer 141 can be firmly connected to the dressing layer 142, for example by sewing (see below).Figures 4A and 4C), gluing, or ultrasonic welding. The padding layers 141 can be provided as a flat surface or as strips, as shown, for example, in Figure 4A. In principle, it is conceivable that a bandage section 110 has one or more distributed padding layers 141. Figures 4A and 4C show, for example, an embodiment in which the bandage 100 has several bandage sections 110, each arranged side by side in the transverse direction QR. Preferably, two adjacent bandage sections 110 can always be connected to each other by a connecting section 111. This is clearly shown in Figures 4A and 4C by the intermediate area extending between the padding layers 141.

[0081] The bandage 100 further comprises at least one closure section 120, which is arranged on one of the lateral bandage edges 105, 106 in order to encircle the body extremity 500 to generate a tensile stress in the bandage subsection 110. Figures 1 to 6 and 8 show examples of embodiments of the closure section 120. For example, Figures 1 to 3 and 8 show that the closure section 120 can extend partially along the lateral bandage edge 106 in the transverse direction QR. These figures also show that the closure section 120 extends in the longitudinal direction LR between one of the lateral bandage edges 106 and the bandage subsection 110. In Figures 1 to 3, the closure section 120 is preferably assigned an extent of approximately one-third of the longitudinal extent xL of the bandage 100. This can, for example, ensure that the closure section 120 is fully closed after approximately 1 minute.5 wraps can be attached. Figures 4 to 6 show that the closure section 120 can be designed as a band or tab. The closure section 120 can already be part of the dressing material or attached to the dressing section, for example by sewing.

[0082] 110 can be attached.

[0083] Figures 4 to 6 further illustrate embodiments in which the bandage 100 has two or more closure sections 120, each arranged side by side in the transverse direction QR. The individual closure sections 120 can be separated by slots 125, 126 extending in the longitudinal direction LR. Alternatively, it is also conceivable to provide the individual closure sections 120 as tabs and to firmly connect them to the bandage material. It is also conceivable that all closure sections 120 are arranged on the same lateral bandage edge 105, 106 (Figures 4A, 5A and 6A) or on different lateral bandage edges 105, 106 (Figure 5B). Regularly alternating or irregularly alternating arrangements are conceivable.

[0084] The dressing 100 also has at least one cohesive dressing surface segment 130 with a cohesive material on both the inner dressing surface 101 and the outer dressing surface 102. The cohesive dressing surface segments 130 can have the same cohesive material. In the example shown in Figures 4A to 4D, for instance, the dressing material was cohesively coated with polyisoprene. Preferably, the dressing section 110 and / or at least the padding layer 141 remain free of cohesive material. Figures 1 to 5B and 8 show examples of the dressing surface segments 130 provided on the dressing 100. Dressing surface segments 130 that are not otherwise visible are shown with dashed lines in the figures.

[0085] For example, it is conceivable that at least one of the cohesive bonding surface segments 130 extends completely over the outer bonding surface 102 or the inner bonding surface 101. It is also possible that both cohesive bonding surface segments 130 extend completely over the outer bonding surface 102 or the inner bonding surface 101. This is illustrated, for example, in Figures 4 and 6. Only the areas covered by the padding layers 141 lack cohesive material on the inner bonding surface 101. This can be seen in Figures 4A and 4C from the fact that the connecting sections

[0086] 111 also exhibit cohesive bandage surface segments 130.

[0087] Alternatively, it is also conceivable that the lamination 100 has several of the cohesive lamination surface segments 130 on the outer lamination surface 102 and / or the inner lamination surface 101. This is illustrated, for example, in Figures 3 and 5B. The cohesive lamination surface segments 130 are arranged at intervals along the longitudinal direction LR. Figure 3 shows, by way of example, that within an arrangement area 150, several cohesive lamination surface segments 130 are arranged on the outer lamination surface 102 at a variable distance from each other. The arrangement area 150 can extend from the lamination edge 105 for up to two-thirds of the longitudinal extent xL of the lamination 100 along the longitudinal direction LR.

[0088] Figure 1 further illustrates an arrangement of the cohesive bonding surface segments 130 relative to each other in the transverse direction QR. For example, one of the cohesive bonding surface segments 130 on the outer bonding surface 102 can be arranged with an identical distance x1 to the transverse bonding edge 107 as the distance x2 of a cohesive bonding surface segment 130 on the inner bonding surface 101.

[0089] On the inner surface 101 of the bandage 100, at least the closure section 120 has at least one cohesive bandage surface segment 130 in order to detachably close the applied bandage 100 when the closure section 120 overlaps with the outer surface 102 of the bandage. Figures 4B, 4D and 6B show examples of such an overlap and closure.

[0090] Preferably, the cohesive dressing area segment 130 can be placed on the inner surface of the dressing.

[0091] The cohesive bonding surface segment 101 can be arranged longitudinally LR offset from a cohesive bonding surface segment 130 on the outer bonding surface 102. This is shown, for example, in Figures 1 to 6 and 8B. Alternatively, the cohesive bonding surface segment 130 on the inner bonding surface 101 can be arranged transversely QR offset from a cohesive bonding surface segment 130 on the outer bonding surface 102. This is shown, for example, in Figure 8A. In each case, this can, for example, result in an overlap between two cohesive bonding surface segments 130, which are limited in area, after wrapping.

[0092] Preferably, for each of the closure sections 120, at least one corresponding cohesive dressing surface segment 130 is provided on the outer surface of the dressing.

[0093] 102 arranged. This can be seen, for example, in Figure 1. Alternatively, if the cohesive lamination surface segment 130 extends appropriately on the outer lamination surface 102, a single cohesive lamination surface segment 130 may also be sufficient, as shown, for example, in Figure 5A. Figure 5B illustrates the same relationship using the example of two cohesive lamination surface segments 130 on the outer lamination surface 102 for four cohesive lamination surface segments 130 on the inner lamination surface 101.

[0094] Figures 4 to 6 further illustrate that different compression zones with varying compression strengths can be provided by wrapping the closure sections 120 along the longitudinal direction LR. These compression zones are designated by the letters A to G in Figure 6. If, for example, the closure sections 120 have different extensions along the longitudinal direction LR to the corresponding lateral bandage edge 105, 106 in the transverse direction QR, a compression strength can be set. Alternatively, different compression zones can also be achieved by arranging the cohesive bandage surface segments 130, as shown in Figure 3. For example, the bandage 100 can generate a resting pressure between 1.3 kPa and 5.3 kPa and a working pressure between 2.7 kPa and 6.7 kPa. The bandage 100 can therefore be used for compression therapy.Other compression pressures are conceivable through different combinations of textiles.

[0095] Figure 6A shows the bandage 100 with a number of pull tabs 160 corresponding to the closure sections 120. Two pull tabs 160 are separated by a longitudinal slit 126 in the bandage material and arranged opposite the closure sections 120. The pull tabs 160 are intended to facilitate application. Furthermore, surface indicators 165, such as a scale, are provided on the pull tabs 160 to indicate, for example, the compression force generated when closing the bandage 100. This allows for verification of proper application and correct adjustment of the required pressure.

[0096] The bandage 100 can, in particular, also have several bandage sections 180, which are tailored to different anatomical areas of limbs. This can be seen, for example, in Figures 6A and 6B, in which the bandage 100 has a leg section 181 for applying the bandage 100 to a leg, a heel section 182 for applying the bandage 100 to a heel, and a foot section 183 for applying the bandage 100 to a foot. In Figure 6, the individual bandage sections are arranged sequentially in the transverse direction QR and are inseparably connected to one another. In this way, for example, different elasticities and / or different bandage materials can be provided on different sections of the bandage.For example, the heel section 182 can have a tube section 170 on which the lateral bandage edges 105, 106 are arranged one above the other and connected to each other in order to enclose part of the foot at the tarsus as an elastic tube. As can further be seen from Figure 6, the bandage sections 180 each also have the bandage subsections 110 and the closure sections 120 and can each be cohesively closed.

[0097] Figure 6 shows another aspect of the invention, namely a bandage system 200 for compression therapy of a body extremity 500 with the bandage 100. Unlike, for example, in Figure 4, the bandage 100 cannot have a padding layer 141. Instead, the bandage system 200 has a padding textile 202 for being applied to the body extremity 500 and wrapped with the bandage 100. In Figure 6, the padding textile 202 is shown by way of example as a sock or stocking. The padding textile 202 can differ in particular from the non-padded clothing items 205, 206 shown in Figure 4B, which are depicted there as part of trousers 205 and as a sock 206. This is further illustrated in Figure 4D, in which the leg 500 is shown unclothed except for the bandage 100. Since the bandage 100 in figures 4A to 4D already has the padding layer 141, no additional padding textile 202 as in figure 6 is required.The non-padded clothing items 205, 206 in Figures 4 can thus serve as garments on their own, eliminating the need for particularly skin-friendly or soft textile materials or for a supportive effect provided by the textile. The padding textile 202 can, for example, comprise at least one of the padding materials previously mentioned for the padding layer 141. Furthermore, it is also conceivable that a padding textile 202 or a non-padded clothing item 205, 206 could be arranged between the skin and the padded dressing 100 shown in Figures 4.

[0098] Another aspect of the invention relates to a method for applying the bandage 100. First, the bandage 100 is placed with its inner surface 101 onto a section of the user's extremity 500. This can be done, for example, in the open state as shown in Figures 4A and 6A. Then, the lateral edge 105, 106 or the transverse edge 106, 107 of the bandage, which is opposite the closure section 120, is held in the longitudinal direction LR, and the extremity is wrapped with the bandage 100 by stretching the bandage 100, whereby a compressive force can be applied. For example, the bandage 100 can be configured such that the wrapping process can be stopped after 1.5 wraps, since the closure section 120 is overlapped with the outer surface 102 of the bandage. The wrapped state can be seen, for example, in Figures 4B, 4D, and 6B.Preferably, the bandage 100 can be closed by applying a defined contact pressure to the closure section 120 in order to form a releasable cohesive bond between the cohesive bandage surface sections.

[0099] Figure 7 further illustrates an exemplary manufacturing process for the bandage 100. In step S1, the bandage material is prepared. The bandage material can then be impregnated with a cohesive material in step S2. The bandage material can be cut to size in step S3, for example, using a laser. Preferably, a padding material can be attached to the bandage material in step S4. In step S5, slits 125, 126 can be provided to separate the closure sections 120. It is conceivable that step S5 is carried out before, after, or simultaneously with step S3.

[0100] The preceding explanation of the embodiments describes the present invention solely by way of examples. Naturally, individual features of the embodiments can be freely combined with one another, provided this is technically feasible, without departing from the scope of the present invention.

[0101] Reference symbol list

[0102] Association 100

[0103] Inner surface of the bandage 101, outer surface of the bandage 102, lateral edges of the bandage 105, 106, transverse edge of the bandage 107, 108, bandage subsection 110, connecting section 111

[0104] Closure section 120, slot 125, 126, cohesive dressing surface segment 130, layer structure 140

[0105] Padding layer 141, dressing layer 142, sutures 143, fleece layer 1411, 1412

[0106] Arrangement area 150 Surface indicator 165 Hose section 170 Dressing sections 180 Leg section 181 Heel section 182 Foot section 183

[0107] Bandage system 200 Padding textile 202 Non-padded clothing 205, 206 Body extremity 500 Compression zones A to G

[0108] Longitudinal direction LR Transverse direction QR Spacing 1 x1 Spacing 2 x2

[0109] Longitudinal extent xL Transverse extent xQ Manufacturing steps S1, S2, S3, S4, S5

Claims

Claims 1. Bandage (100) for application to a body extremity (500) for compression therapy, comprising an elastic bandage material for wrapping around the body extremity (500), as well as an inner bandage surface (101) and an outer bandage surface (102) which extend in a longitudinal direction (LR) between two lateral bandage edges (105, 106) and further extend in a transverse direction (QR) perpendicular to the longitudinal direction (LR), further comprising: a bandage subsection (110) for contact with the inner bandage surface (101) on the body extremity (500), and at least one closure section (120) which is arranged on one of the lateral bandage edges (105, 106) to wrap around the body extremity (500) to generate a tensile stress in the bandage subsection (110), characterized by at least one cohesive bandage surface segment (130) on the inner bandage surface (101) and on the Association outer area (102),wherein the cohesive dressing surface segments (130) each extend with a cohesive material, wherein at least the closure section (120) has the at least one cohesive dressing surface segment (130) on the inner dressing surface (101) in order to detachably close the applied dressing (100) when overlapping the closure section (120) with the outer dressing surface (102).

2. Bandage (100) according to claim 1, wherein the bandage (100) is a wrap for a foot, leg or arm area.

3. Bond (100) according to claim 1 or claim 2, wherein at least one cohesive bond surface segment (130) on the inner bond surface (101) is arranged at least partially offset in the longitudinal direction (LR) to a cohesive bond surface segment (130) on the outer bond surface (102).

4. Bond (100) according to one of the preceding claims, comprising several of the cohesive bond surface segments (130) on the outer bond surface (102) and / or the inner bond surface (101), which are preferably spaced apart from each other in the longitudinal direction (LR), and / or wherein at least one of the cohesive bond surface segments (130) extends completely over the outer bond surface (102) and / or the inner bond surface (101).

5. Bandage (100) according to one of the preceding claims, wherein the at least one cohesive bandage surface segment (130) is located on the outer surface (102) of the bandage - is arranged at an identical distance (x1 , x2) to a stave transverse edge (107, 108) as the at least one cohesive stave surface segment (130) on the stave inner surface (101), wherein the stave transverse edge (107, 108) extends transversely to the two lateral stave edges (105, 106), - is arranged centrally in the longitudinal direction (LR) and / or in the transverse direction (QR), and / or - is arranged within an arrangement area (150) of the outer surface (102) of the bond, which extends from the corresponding other lateral bond edge (105, 106) by up to two thirds of the longitudinal extent (xL) of the bond (100) in the longitudinal direction (LR).

6. Bandage (100) according to one of the preceding claims, wherein the cohesive bandage surface segments (130) comprise an identical cohesive material, and / or wherein the cohesive bandage surface segments (130) comprise a binder, an impregnation or a coating with the cohesive material, wherein the cohesive material is preferably polyisoprene.

7. Bandage (100) according to one of the preceding claims, wherein the bandage (100) at least partially comprises a layered structure (140) comprising a bandage layer (142) made of the bandage material and a padding layer (141) made of a preferably has stretchable padding material, wherein preferably at least the dressing section (110) has the layer structure (140) and furthermore preferably the padding layer (141) is arranged in the layer structure (140) on the inner surface (101) of the dressing.

8. Bandage (100) according to claim 7, wherein the padding layer (141) - as one or more preferably spaced-apart strips of the padding material are arranged on the bandage section (110), - comprising one or more nonwoven layers (1411, 1412), wherein the padding layer (141) preferably comprises polypropylene as the padding material, and / or - is firmly connected to the dressing layer (142), preferably glued, sewn or ultrasonically welded to the dressing layer (142).

9. Bandage (100) according to one of the preceding claims, wherein the bandage material is a polyester fleece sewn with elastane, a woven fabric, a knitted fabric or a woven composition which has fibers or material stretchable in at least one direction.

10. Bandage (100) according to one of the preceding claims, wherein the closure section (120) extends at least partially, preferably completely, in the transverse direction (QR) along one lateral bandage edge (105, 106), and / or wherein the closure section (120) extends in the longitudinal direction (LR) between one lateral bandage edge (105, 106) and the bandage subsection (110), wherein the closure section (120) has an extension from one lateral bandage edge (105, 106) in the longitudinal direction (LR) of up to one third of the longitudinal extent (xL) of the bandage (100).

11. Bandage (100) according to one of the preceding claims, wherein the closure section (120) is designed as a band or tab, and / or wherein the closure section (120) is fixedly or integrally connected to the ligament section (110), and / or wherein the ligament section (110) is formed as a flat surface.

12. Bandage (100) according to one of the preceding claims, further comprising at least two of the bandage subsections (110) and at least two closure sections (120) corresponding to these, wherein the bandage subsections (110) are arranged side by side in the transverse direction (QR), wherein preferably two adjacent closure sections (120) are separated by a slot (126) extending in the longitudinal direction (LR) in the bandage material, which extends from one of the lateral bandage edges (105, 106) to the bandage subsections (110).

13. Bandage (100) according to claim 12, wherein the closure sections (120) are each arranged on the same lateral bandage edge (105, 106) and / or are arranged on different of the two lateral bandage edges (105, 106), wherein preferably the closure sections (120) are arranged alternately along the transverse direction (QR) on one or the corresponding other lateral bandage edge (105, 106).

14. Bandage (100) according to claim 12 or claim 13, wherein different compression zones (AG) with different compression strengths can be provided by wrapping the closure sections (120) in the longitudinal direction (LR), and / or wherein the closure sections (120) have at least partially different extensions along the longitudinal direction (LR) to the associated lateral bandage edge (105, 106) in the transverse direction (QR), wherein preferably the respective extension along the longitudinal direction (LR) corresponds to an adjustable compression strength.

15. Bandage (100) according to one of claims 12 to 14, wherein for each of the closure sections (120) at least one corresponding cohesive bandage surface segment (130) is arranged on the outer surface (102) of the bandage.

16. Bandage (100) according to one of claims 12 to 15, wherein the bandage subsections (110) at least partially have a layered structure (140) with a bandage layer (142) made of the bandage material and a padding layer (141) made of a padding material, wherein the padding layers (141) of two adjacent bandage subsections (110) are connected to each other by a connecting section (111) between the bandage subsections (110), which has at least one cohesive bandage surface segment (130) on at least the inner surface (101) of the bandage.

17. Bandage (100) according to one of the preceding claims, wherein the bandage (100) has at least one pull tab (160) which extends beyond the bandage section (110) to the corresponding other lateral bandage edge (105, 106) in the longitudinal direction (LR), wherein each pull tab (160) is arranged opposite a closure section (120) with respect to the bandage section (110), wherein preferably the bandage (100) has at least two pull tabs (160), wherein each pair of pull tabs (160) is separated by a slot (125) extending in the longitudinal direction (LR) in the bandage material, which extends from one of the lateral bandage edges (105, 106) in the longitudinal direction (LR) towards the bandage sections (110),and / or wherein preferably the pull tab (160) has a cohesive dressing surface segment (130) only on the outer dressing surface (102) and / or has at least one surface indicator (165) on the outer dressing surface (102) to indicate at least one parameter for compression therapy, wherein preferably the surface indicator (165) has a scale or an indicator to indicate a compression force generated when closing.

18. Bandage (100) according to one of the preceding claims, further comprising a tube section (170) on which the lateral bandage edges (105, 106) are arranged as a butt joint or one above the other and are connected to each other in order to enclose a part of the body extremity (500) with the inner surface (101) of the bandage as an elastic tube, wherein preferably the tube section (170) has at least one band or tab which is arranged on the outer surface (102) of the bandage and is connected to the tube section (170), wherein the band or tab has at least one cohesive bandage surface segment (130).

19. Bandage (100) according to one of the preceding claims, comprising at least two bandage sections (180) arranged successively in the transverse direction (QR) for applying the bandage (100) to different anatomical areas of limbs, in particular for leg, heel and / or foot, wherein the bandage sections (180) preferably comprise: - a leg section (181) for applying the bandage (100) to a leg, - a heel section (182) for applying the bandage (100) to the heel, and / or - having a foot section (183) for applying the bandage (100) to a foot, wherein preferably the bandage sections (180) are inseparably connected to each other, and / or wherein preferably the bandage sections (180) have different extensibility and / or different bandage materials.

20. Association (100) according to claim 19, wherein at least one or each of the association sections (180) has at least: - a section of the association (110), - a closure section (120) with at least one cohesive dressing surface segment (130) on the inner dressing surface (101), as well as - at least one cohesive bandage surface segment (130) on the outer bandage surface (102) of the corresponding bandage section (180).

21. Bandage system (200) for compression therapy of a body extremity (500), comprising - the association (100) according to any of the preceding claims, as well as - a padding textile (202), such as a cuff, a sock, a stocking or a tubular bandage for application to the body extremity (500) and for wrapping with the bandage (100) in order to apply a compression force to the body extremity (500) via the padding textile (202) with the bandage (100).

22. Use of the dressing (100) according to any one of claims 1 to 20 or of the dressing system (200) according to claim 21 for compression therapy.

23. Method for applying a bandage (100) according to any one of claims 1 to 19, comprising the steps: - Applying the bandage (100) with the inner surface of the bandage (101) to a section of the user's body extremity (500); - Holding the corresponding other lateral bandage edge (105, 106) which is opposite the closure section (120) in the longitudinal direction (LR); - Wrapping the section of the body extremity (500) with a defined tensile force to generate a defined compression pressure with the bandage (100) by guiding the closure section (120); - Overlap of the closure section (120) with the outer surface of the dressing (102) to releasably close the dressing (100) with a cohesive bond; and - preferably applying a defined contact pressure to the closure section (120) to form the cohesive bond in a pressure-activated manner.

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