DE102024119028A1 - Adaptive compression bandage with cohesive closures - Google Patents

Abstract

The invention relates to a bandage (100) for application to a body extremity (500) for compression therapy. The bandage (100) comprises 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). The bandage (100) also comprises a bandage section (110) for contact with the inner bandage surface (101) on the body extremity (500). The bandage (100) also comprises 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 tensile tension in the bandage section (110). Furthermore, the bandage (100) has at least one cohesive bandage surface segment (130) on the inner surface (101) and on the outer surface (102), each of which is provided with a cohesive material. On the inner surface (101), at least the closure section (120) has the one cohesive bandage surface segment (130) to releasably close the applied bandage (100) when the closure section (120) overlaps with the outer surface (102). The invention further relates to a bandage system (200) with the bandage (100) and a method for applying the bandage (100).

Description

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.

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.

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.

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.

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, [reference to a specific document] discloses EP 3 512 479 B1 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 compression garment by generating a compression force and to maintain the compression force even after closure.

A disadvantage of using such closure mechanisms is that the production of corresponding compression garments becomes complex and expensive, as a multitude 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 undo the hook-and-loop fastener, as it often requires a sudden, forceful removal. 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 spikes. These closure mechanisms also do not allow for flexible adjustments to changes in anatomy (such as swelling of the affected body part) or the need for compression pressure, because with a hook-and-loop fastener, for instance, it must be ensured that the hook element always lies on the corresponding mesh section. If a bandage is to be wrapped beyond the mesh section, for example, it can no longer be closed.

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.

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.

Furthermore, additional advantages and features of the invention become apparent from the description and the drawings. Features and details described in connection with the dressing according to the invention naturally also apply in connection with the dressing system according to the invention, the use according to the invention, and the method for applying the dressing according to the invention, and vice versa, so that the disclosure regarding the individual aspects of the invention is always interchangeable. Reference is 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. They also extend transversely to the longitudinal direction. The bandage has a section for contact with the body extremity, with the inner surface of the bandage in contact with the body extremity. The bandage also has at least one closure section for wrapping around the body extremity to create tension in 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 the inner surface. The bandage also has at least one cohesive bandage segment on the outer surface. The cohesive bandage segments each extend with 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.

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.

In the context of this 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 resulting 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 accordingly have a significantly greater longitudinal than transverse extent. The bandage according to the invention, however, can have a more balanced ratio between longitudinal and transverse extension. It is also conceivable that the transverse extension of the bandage can exceed its longitudinal extension. Alternatively or additionally, the bandage according to the invention can have one or more longitudinal extensions, each corresponding to at least one adjustable compression pressure. Preferably, the bandage can be configured in its longitudinal extension to allow for the setting of further defined compression pressures between a minimum and a maximum compression pressure for compression therapy. Furthermore, preferably, the bandage can be configured in its transverse extension to allow for setting a location for a defined compression pressure.

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 , more preferably 5-9 N/ ^mm² , and most preferably 6-8 N/ ^mm² . For example, a material suitable for a long-stretch bandage (elongation > 100%-120%) can be used as the dressing material. For example, 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.

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.

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

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.

The term "bandage section" can be understood to refer in particular to a part of the bandage used to transmit a compressive force to the body part when applied. The term "closure section" can further refer in particular 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 bandage edges" can be understood in particular as an arrangement directly on or in the immediate vicinity of one of the lateral bandage edges. 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.

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.

A "cohesive material" can be understood to mean, in particular, a self-adhesive substance. Preferably, an adhesive bond can only be formed 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. An 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.

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

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. It also significantly increases comfort when applying or removing the bandage, as it can be applied to sensitive areas of the body with lower pressure peaks.

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 were primarily used in conjunction with longitudinally elastic cohesive bandages, as for example in EP 3 393 413 B1 shown.

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.

For example, to be able to adjust different compression pressures and/or to increase the adhesive forces for closing the dressing, it can be advantageous if, according to a preferred embodiment, the dressing can have several of the cohesive dressing surface segments on the outer surface and/or the inner surface of the dressing. Preferably, the The cohesive bonding surface segments are arranged longitudinally spaced apart from one another. Preferably, at least one of the cohesive bonding surface segments extends completely over the outer surface and/or the inner surface of the bond. They can also preferably be arranged longitudinally spaced at uniform intervals or with varying intervals. For example, the bonding surface segments on the same bonding surface can be arranged in a decreasing pattern towards one lateral edge of the bond.

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.

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.

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.

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.

In order to provide sections of the binder with different functions, it may be useful if the binder has at least a partially layered structure.

Preferably, the layered structure can comprise a dressing layer made of the dressing material and a padding layer made of a padding material.

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.

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.

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

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 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.

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.

To provide the dressing with a material that is particularly suitable for compression therapy, for example due to its elasticity, it may be useful if the dressing material is a polyester fleece sewn with elastane, a woven fabric, or a knitted fabric. or a fabric composition comprising at least one fiber or yarn that is stretchable in at least one direction.

Furthermore, it can be advantageous if the closure section extends at least partially, preferably completely, along one lateral edge of the bandage in the transverse direction. Alternatively or additionally, the closure section can extend longitudinally between one lateral edge of the bandage and the bandage subsection. Preferably, the closure section can extend from one lateral edge of the bandage in the longitudinal direction to a length of up to one-third of the bandage's longitudinal extent.

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.

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.

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.

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

To increase the compression forces and slip resistance of the bandage, the closure sections can alternatively or additionally be positioned on different 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.

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.

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.

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.

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.

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.

To prevent the bandage from slipping and to make it easier to apply, it can be advantageous if the bandage also has a tubular section. On the The tubular section can have its lateral bandage edges arranged as butt joints or overlapping and connected to each other in order to enclose a portion of the extremity with the inner surface of the bandage as an elastic tube. Furthermore, the tubular section preferably has at least one strap or tab. The strap or tab can be arranged on the outer surface of the bandage and connected to the tubular section. The strap or tab can also have at least one cohesive bandage surface segment.

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.

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 preferably have different elasticities and/or are 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 surface of the bandage, and at least one cohesive bandage surface segment on the outer surface of the respective bandage section.

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.

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

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

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.

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.

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.

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.

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

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.

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

This allows for particularly easy handling when applying the bandage for compression therapy.

• 1 eine schematische Draufsicht auf einen Verband gemäß einem Ausführungsbeispiel der Erfindung;
• 2 eine schematische Seitenansicht auf den Verband aus 1;
• 3 eine schematische Draufsicht auf einen Verband gemäß einem weiteren Ausführungsbeispiel der Erfindung;
• 4A eine fotografische Draufsicht-Ansicht eines Verbands gemäß einem weiteren Ausführungsbeispiel der Erfindung;
• 4B eine fotografische Ansicht des Verbands aus 4A im angelegten Zustand an einem bekleideten Bein;
• 4C eine schematische Darstellung der 4A;
• 4D eine schematische Darstellung der 4B ohne Bekleidung des Beines;
• 5A eine schematische Draufsicht auf einen Verband gemäß einem weiteren Ausführungsbeispiel der Erfindung;
• 5B eine schematische Draufsicht auf einen Verband gemäß einem weiteren Ausführungsbeispiel der Erfindung;
• 6A eine schematische Draufsicht auf einen Verband gemäß einem weiteren Ausführungsbeispiel der Erfindung;
• 6B eine schematische Ansicht des Verbands aus 6A im angelegten Zustand; und
• 7 eine schematische Ansicht eines Herstellungsverfahrens für den Verband gemäß einem Ausführungsbeispiel der Erfindung, und
• 8A eine schematische Draufsicht auf einen Verband gemäß einem weiteren Ausführungsbeispiel der Erfindung;
• 8B eine schematische Draufsicht auf einen Verband gemäß einem weiteren Ausführungsbeispiel der Erfindung.

The invention will be explained in more detail below, for example, with reference to the drawings. The drawings show:

• 1 a schematic top view of a ligament according to an embodiment of the invention;
• 2 a schematic side view of the bandage 1 ;
• 3 a schematic top view of a ligament according to a further embodiment of the invention;
• 4A a photographic top view of a grouping according to a further embodiment of the invention;
• 4B a photographic view of the association from 4A in the applied state on a clothed leg;
• 4C a schematic representation of the 4A ;
• 4D a schematic representation of the 4B without clothing on the leg;
• 5A a schematic top view of a ligament according to a further embodiment of the invention;
• 5B a schematic top view of a ligament according to a further embodiment of the invention;
• 6A a schematic top view of a ligament according to a further embodiment of the invention;
• 6B a schematic view of the association 6A in the applied state; and
• 7 a schematic view of a manufacturing process for the bandage according to an embodiment of the invention, and
• 8A a schematic top view of a ligament according to a further embodiment of the invention;
• 8B a schematic top view of a ligament according to a further embodiment of the invention.

In the following, the same reference symbols are used for identical and equivalent components.

The figures show different views and different aspects of the invention.

One aspect of the invention relates to a bandage 100 for application to a body extremity 500 for compression therapy. 1 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 shown in particular in the following illustrations: 4B , 4D and 6B emerges.

The bandage 100 features an elastic bandage material that can be wrapped around the limb 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 , approx. 11 g/ ^m² polyisoprene adhesive, adhesive strength approx. 60 cN/cm). This is, for example, in the 4A and 4B shown. In the 4A and 4C The seams attached for this purpose are indicated by dash-dotted lines 143.

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.

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 to this in a transverse direction QR. This is exemplified in the 1 to 6 and 8 shown. This shows in particular that the stave 100 extends in the transverse direction QR between two stave transverse edges 107, 108.

In this case, the lateral bandage edges 105, 106 and the transverse bandage edges 107, 108 can each extend continuously in a straight line, as for example in the 1 to 3 and 8B shown. Alternatively, it is also conceivable that at least one of the lateral bandage edges 105, 106 or the bandage transverse edges 107, 108 has an arbitrary course, such as a serpentine or curved course, as for example in 8A shown. Furthermore, courses of the lateral bond edges 105, 106 are also conceivable in which the lateral bond edges 105, 106 extend discontinuously at least sectionally along the transverse direction QR, for example as Stu fen, or with forward and/or backward steps. This is the case, for example, in the 4A to 6B shown.

The bandage 100 also has at least one bandage subsection 110, with which the bandage 100 is intended to rest on the body extremity 500 with the inner bandage surface 101. In the schematic 1 to 3, 5 and 8 The dressing section 110 is simplified as a section of the dressing 100. To increase the wearing comfort of the dressing 100, at least the dressing section 110 can therefore have a layered structure 140 which, in addition to the dressing material as a dressing 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 the padding layer 141 forms at least a part of the inner surface 101 of the dressing. This is exemplified in the 2 and 4A The padding layer 141 can itself be composed of several non-woven layers 1411, 1412. The padding layer 141 can, for example, consist of non-woven 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 figure). 4A and 4C ), gluing or ultrasonic welding. The cushioning layers 141 can be provided as a flat surface or as strips, as for example in 4A shown. In principle, it is conceivable that a bandage section 110 has one or more distributed layers of padding 141. The 4A and 4C Figure 1 shows, for example, an embodiment in which the truss 100 has several truss subsections 110, each arranged side by side in the transverse direction QR. Preferably, two adjacent truss subsections 110 can always be connected to each other by a connecting section 111. In the 4A and 4C This is clearly evident in the intermediate area extending between the upholstery layer 141.

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. 1 to 6 and 8 Examples of designs for the locking section 120 are shown. For example, the 1 to 3 and 8 For example, 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 lateral bandage edge 106 and the bandage subsection 110. In the 1 , 2 until 3 The closure section 120 is preferably assigned an extent of approximately one-third of the longitudinal extent xL of the bandage 100. This makes it possible, for example, to fasten the closure section 120 after approximately 1.5 wraps at the latest.

In the 4 , 5 until 6 The illustration shows 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 subsection 110, for example by sewing.

In the 4 , 5 until 6 Furthermore, exemplary embodiments are shown 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 ( 4A , 5A and 6A) or at different edges of the two lateral bandages 105, 106 ( 5B) Regularly alternating or irregularly alternating arrangements are conceivable.

The bandage 100 also has at least one cohesive bandage surface segment 130 with a cohesive material on both the inner bandage surface 101 and the outer bandage surface 102. The cohesive bandage surface segments 130 can have the same cohesive material. In the example from the 4A to 4D For example, 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. 1 to 5B and 8 The figures show examples of the 130 stave surface segments provided for in the stave 100. In the figures, stave surface segments 130 that are not otherwise visible have been shown by dashed lines.

For example, it is conceivable that at least one of the cohesive lamination surface segments 130 extends completely over the lamination outer surface 102 or the lamination inner surface 101. It is also possible that both cohesive lamination surface segments 130 extend completely over either the lamination outer surface 102 or the lamination inner surface 101. In the 4 and 6 This is illustrated, for example. Only the areas covered by the padding layers 141 show no cohesive material on the inner surface of the dressing. che 101 on. In the 4A and 4C This can be deduced from the fact that the connecting sections 111 also have cohesive bonded surface segments 130.

Alternatively, it is also conceivable that the ligament 100 has several of the cohesive ligament surface segments 130 on the ligament outer surface 102 and/or the ligament inner surface 101. This is the case, for example, in the 3 and 5B The cohesive bonding surface segments 130 are shown as an example, spaced apart from each other in the longitudinal direction LR. 3 This is illustrated by way of example, showing that within an arrangement area 150, several cohesive bonding surface segments 130 are arranged on the outer bonding surface 102 at a variable distance from each other. The arrangement area 150 can extend from the bonding edge 105 up to two-thirds of the longitudinal extent xL of the bonding 100 in the longitudinal direction LR.

1 The diagram 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 bonding transverse edge 107 as the distance x2 of a cohesive bonding surface segment 130 on the inner bonding surface 101.

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. 4B , 4D and 6B show examples of such overlapping and closing.

Preferably, the cohesive lamination surface segment 130 on the inner lamination surface 101 can be arranged offset in the longitudinal direction LR relative to a cohesive lamination surface segment 130 on the outer lamination surface 102. This is, for example, in the 1 to 6 and 8B as shown. Alternatively, the cohesive lamination surface segment 130 on the inner lamination surface 101 can be offset in the transverse direction QR relative to a cohesive lamination surface segment 130 on the outer lamination surface 102. This is shown, for example, in 8A This illustrates, for example, that an overlap can be achieved between two cohesive dressing surface segments 130 that are limited in their area after wrapping.

Preferably, at least one corresponding cohesive banding surface segment 130 is arranged on the outer banding surface 102 for each of the closure sections 120. This is evident, for example, from 1 Alternatively, if the cohesive bandage surface segment 130 extends appropriately onto the outer bandage surface 102, a single cohesive bandage surface segment 130 may also be sufficient, as for example in 5A shown. 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.

The 4 , 5 until 6 further illustrate that of the 120 closure sections in the longitudinal direction LR, different compression zones with different compression strengths can be provided by wrapping. In 6 These compression zones are exemplified by the letters A to G. If, for example, the closure sections 120 have different extensions in the transverse direction QR along the longitudinal direction LR to the corresponding lateral dressing edge 105, 106, a compression strength can be set. Alternatively, different compression zones can also be achieved by the arrangement of the cohesive dressing surface segments 130, as shown in 3 This is shown. For example, the 100 bandage 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 100 bandage can therefore be used for compression therapy. Other compression pressures are possible through different combinations of textiles.

In 6A The bandage 100 is shown with a number of pull tabs 160 corresponding to the closure sections 120. Two pull tabs 160 are separated by a longitudinal slot 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 the correct adjustment of the required pressure.

The bandage 100 can also have several bandage sections 180, which are tailored to different anatomical areas of limbs. This can, for example, 6A and 6B to be removed, in which the bandage 100 contains 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 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 at different sections of the bandage. For example, the heel section 182 can have a tubular 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 shown in 6 Furthermore, it can be seen that the banding sections 180 each also have the banding subsections 110 and the closure sections 120 and can each be cohesively closed on their own.

6 This 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 4 However, the bandage 100 cannot be fitted with a padding layer 141. Instead, the bandage system 200 has a padding textile 202 for application to the body extremity 500 and for wrapping with the bandage 100.

6 The upholstery textile 202 is shown as an example of a sock or stocking. The upholstery textile 202 can differ in particular from those in 4B The non-padded clothing items 205, 206 shown are distinguished, depicted there as part of trousers 205 and as a sock 206. This is further explained in 4D This is illustrated by the fact that leg 500 is depicted as unclothed except for the bandage 100. Since the bandage 100 is in the

4A to 4D Since the upholstery layer 141 is already present, no additional upholstery textile 202 is required, as in 6 required. The non-padded clothing items 205, 206 in the 4 They can thus serve solely as garments, eliminating the need for particularly skin-friendly or soft textile materials, or for a supportive effect provided by the textile. For example, the padding textile 202 can incorporate at least one of the padding materials previously mentioned for the padding layer 141. Furthermore, it is of course also conceivable that the padded bandage 100 could also consist of the following materials: 4 A padding textile 202 or a non-padding clothing item 205, 206 may be arranged between the skin and the dressing 100.

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 the 4A and 6A The following steps are shown. Then, the lateral bandage edge 105, 106 or the bandage transverse edge 106, 107, which is opposite the closure section 120, is held in the longitudinal direction LR and the body extremity is wrapped with the bandage 100 while stretching the bandage 100, whereby a compressive force can be applied. For example, the bandage 100 can be configured so that after 1.5 wraps the wrapping process can be stopped, since the closure section 120 is overlapped with the outer surface 102 of the bandage. The wrapped state can, for example, 4B , 4D and 6B can be removed. Preferably, the dressing 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 dressing surface sections.

7 Figure 1 further illustrates an exemplary manufacturing process for 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.

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.

Reference symbol list

100

Association

101

Inner surface of the dressing

102

Association's outer area

105, 106

lateral bandage edges

107, 108

Cross edge of the bandage

110

Association subsection

111

Connection section

120

Closure section

125, 126

slot

130

cohesive dressing area segment

140

Layer structure

141

padding

142

Bandage situation

143

seams

1411, 1412

fleece layer

150

Arrangement area

165

Surface indicator

170

hose section

180

Association sections

181

Leg section

182

Heel section

183

Foot section

200

Association system

202

Upholstery fabric

205, 206

non-padded clothing

500

Body extremity

A to G

Compression zones

LR

Longitudinal direction

QR

transverse direction

x1

Distance 1

x2

Distance 2

XL

Longitudinal extent

xQ

transverse extension

S1, S2, S3, S4, S5

Manufacturing steps

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• EP 3 512 479 B1 [0005]
• EP 3 393 413 B1 [0023]

Claims (23)

A 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 outer bandage surface (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). Association (100) according to Claim 1 , wherein the bandage (100) is a wrap or dressing for a foot, leg or arm area. Association (100) according to Claim 1 or Claim 2 , wherein at least one cohesive lamination surface segment (130) on the inner lamination surface (101) is arranged at least partially offset in the longitudinal direction (LR) to a cohesive lamination surface segment (130) on the outer lamination surface (102). A 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). A bond (100) according to one of the preceding claims, wherein the at least one cohesive bond surface segment (130) on the outer bond surface (102) is arranged - at an identical distance (x1, x2) to a bond transverse edge (107, 108) as the at least one cohesive bond surface segment (130) on the inner bond surface (101), wherein the bond transverse edge (107, 108) extends transversely to the two lateral bond 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 bond surface (102), 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). 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. Bandage (100) according to one of the preceding claims, wherein the bandage (100) at least partially has a layered structure (140) comprising a bandage layer (142) made of the bandage material and a padding layer (141) made of a preferably stretchable padding material, wherein preferably at least the bandage subsection (110) has the layered structure (140) and furthermore preferably the padding layer (141) is arranged in the layered structure (140) on the inner surface (101) of the bandage. Association (100) according to Claim 7 , wherein the padding layer (141) is arranged as one or more preferably spaced-apart strips of padding material on the dressing section (110), has one or more nonwoven layers (1411, 1412), wherein the padding layer (141) preferably has 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). 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 yarns that are stretchable in at least one direction. Association (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). 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 bandage subsection (110), and/or wherein the bandage subsection (110) is designed as a flat surface. 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 next to each other 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). Association (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), preferably the closure sections (120) are arranged alternately along the transverse direction (QR) on one or the corresponding other lateral bandage edge (105, 106). Association (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. Association (100) according to one of the Claims 12 until 14 , wherein for each of the closure sections (120) at least one corresponding cohesive dressing surface segment (130) is arranged on the dressing outer surface (102). Association (100) according to one of the Claims 12 until 15 , wherein the bandage subsections (110) have at least partially 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. A 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), whereby preferably the bandage (100) has at least two pull tabs (160), wherein each pair of pull tabs (160) is separated by a longitudinally extending slot (125) 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 whereby preferably the pull tab (160) forms a cohesive bandage surface segment only on the outer surface (102) of the bandage. (130) and/or has at least one surface indicator (165) on the outer surface (102) of the dressing 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. 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). A 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 - a foot section (183) for applying the bandage (100) to a foot, wherein preferably the bandage sections (180) are inseparably connected to one another, and/or wherein preferably the bandage sections (180) have different extensibility and/or different bandage materials. Association (100) according to Claim 19 , wherein at least one or each of the bandage sections (180) has at least: - a bandage subsection (110), - a closure section (120) with at least one cohesive bandage surface segment (130) on the inner bandage surface (101), and - at least one cohesive bandage surface segment (130) on the outer bandage surface (102) of the corresponding bandage section (180). Bandage system (200) for compression therapy of a body extremity (500), comprising - the bandage (100) according to one of the preceding claims, and - 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). Use of the bandage (100) according to one of the Claims 1 until 20 or the association system (200) according to Claim 21 for compression therapy. Procedure for applying a bandage (100) according to one of the Claims 1 until 19 , comprising the steps: - Applying the bandage (100) with the inner surface (101) of the bandage to a section of the user's extremity (500); - Holding the corresponding lateral bandage edge (105, 106), which is opposite the closure section (120), in the longitudinal direction (LR); - Wrapping the section of the extremity (500) with a defined tensile force to generate a defined compression pressure with the bandage (100) by guiding the closure section (120); - Overlapping the closure section (120) with the outer surface (102) of the bandage to releasably close the bandage (100) with a cohesive bond; and - preferably applying a defined contact pressure to the closure section (120) to form a pressure-activated cohesive bond.