A dressing system for the treatment of a skin growth, and the use of such a dressing system
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- HUBER WILLI S
- Filing Date
- 2019-11-28
- Publication Date
- 2026-07-09
AI Technical Summary
Existing treatments for skin growths like warts, particularly vaginal warts, often damage surrounding healthy skin due to inaccurate application of active ingredients, risking infection and discomfort.
A dressing system with a support element featuring a precise opening for the wart and an adhesive active substance element that protects healthy skin while ensuring targeted application of keratolytic agents.
The system allows for precise treatment of skin growths without damaging surrounding skin, reducing the risk of infection and enhancing treatment efficacy.
Smart Images
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Abstract
Description
[0001] The present invention relates to a coating system suitable for the treatment of a skin growth, in particular a canker wart, and to a use of the coating system.
[0002] Warts on the face, hands, and feet are usually caused by the human papillomavirus (HPV) and are highly contagious. HPV enters the upper layer of skin through even the smallest injuries, leading to growth and hardening. While warts on the face and hands typically grow outwards, warts on the soles of the feet usually grow deep inwards and harden due to the weight of the body on the soles. This is often accompanied by pain, as if the affected person were stepping on a thorn, which is likely the origin of the name "dome wart" (or "squamous wart").
[0003] To treat a wart, one option is to apply an acid, such as salicylic acid, to the skin growth. The salicylic acid softens the skin's outer layer. As a result, after a certain period, the wart can be removed piece by piece, for example, with a file. Some acids used in therapy can also directly cauterize the wart. After repeated applications over several weeks, the wart becomes brittle, dries out, and falls off on its own or can be removed.
[0004] To simplify treatment, which is usually carried out by the affected individuals themselves, there are medicated plasters. These are cut to fit the surface of the wart as precisely as possible and fixed in place, for example, with an adhesive bandage. The medicated plaster typically remains on the wart for two days and then needs to be replaced. The stratum corneum must also be regularly removed mechanically.
[0005] Regardless of whether the active ingredient is applied directly to the wart by rubbing it on or via a medicated patch, the surrounding healthy skin tissue must be protected. Otherwise, the healthy tissue will be damaged and vulnerable, which can cause additional pain when walking. In the worst case, the viruses can enter the body through wounds in the skin and lead to health problems.
[0006] The surrounding healthy skin is usually covered with a protective film of petroleum jelly, zinc oxide paste, or similar preparations. However, this is often overlooked, which can lead to the problems mentioned above during treatment.
[0007] The non-transparent medicated patch is positioned as precisely as possible on the wart. However, this is very difficult, as the exact position of the wart can only be estimated during the application process. Frequently, the patch is not optimally positioned, and healthy skin areas come into contact with the active ingredient and are thus damaged. There is room for improvement here.
[0008] It is therefore an object of the present invention to provide a support system and a use of such a support system for the treatment of a skin growth, which makes it possible to treat even the smallest skin growths locally limited to the area of the skin growth and at the same time protects the surrounding skin from homeopathic abrasion and is also easy to handle.
[0009] The problem is solved by a support system having the features of claim 1 and its use according to claim 10.
[0010] The support system according to the invention comprises a planar first support element with a top surface and a support side opposite the top surface, wherein the support side is coated at least partially, preferably over its entire surface, with an adhesive and a planar active ingredient element which is provided with an active substance, so that the active substance of the active ingredient element can be released to the outside.
[0011] The first support element has at least one continuous opening suitable for viewing, through which the active ingredient element is arranged. The active substance contains at least one keratolytic substance.
[0012] Due to the opening suitable for viewing, the first support element can be precisely positioned on skin affected by a skin growth so that the skin growth is located exactly in the area of the continuous opening of the first support element.
[0013] The active ingredient element is applied to the first application element in the area of the through-hole, preferably so that the active ingredient element completely covers or even extends into the opening. Since the first application element covers the healthy skin surrounding the skin growth, this skin is completely protected from the keratolytic substance released by the active ingredient element. Simultaneously, the active ingredient can be applied directly to the skin growth through the through-hole. This allows for effective treatment of the skin growth without the disadvantage of damaging healthy skin tissue.
[0014] To make the first support element particularly inexpensive and easy to produce, a preferred further training provides for the opening of the first support element to be a punched hole.
[0015] In a preferred embodiment, the opening of the first support element is round and has a diameter between 0.5 mm and 5 mm, preferably between 1 mm and 3 mm. This embodiment is particularly suitable for treating canker warts, as these are usually round and have a diameter corresponding to the claimed range. Furthermore, this embodiment is suitable for cost-effective mass production because the opening size is standardized.
[0016] It is preferred that the active substance of the active ingredient contains one or more of the keratolytic substances salicylic acid, lactic acid, fluorouracil, dithranol, monochloroacetic acid, acetic acid, oxalic acid, nitric acid, copper nitrate and / or trichloroacetic acid.
[0017] To prevent the keratolytic substance of the active ingredient, which usually contains an acid, from damaging or even dissolving the support element, a preferred embodiment provides that at least one section of the top of the support element is acid-resistant, preferably coated with an acid-resistant coating.
[0018] In a preferred embodiment, the active ingredient element has an active ingredient side facing the support element, wherein the active ingredient side comprises an active ingredient area impregnated with the active substance and surrounded by an adhesive surface. The active ingredient element is bonded to the top of the support element with its adhesive surface such that the active ingredient area of the active ingredient element is positioned above the opening of the support element. Due to the bonding of the active ingredient element to the top of the support element, this embodiment ensures that the active ingredient element cannot slip during use of the support system.
[0019] Preferably, in a further development of this embodiment, the adhesive force of the adhesive surface on the active ingredient side of the active ingredient element should be greater than the adhesive force of the adhesive on the contact side of the contact element. This allows the contact system applied to the skin to be completely removed by pulling on the active ingredient element without the active ingredient detaching from the contact element, thus simplifying the removal of the contact system from the skin. The adhesive force of the active ingredient element is preferably greater than 30 Newtons per square meter.
[0020] In a preferred embodiment, the application system has a base state and an application state, wherein in the base state at least one application element and one active ingredient element are arranged on a substrate from which both can be removed without leaving any residue. Applying several application elements and active ingredient elements to one substrate offers ecological advantages, as it eliminates the need for additional protective films to cover the adhesive surfaces of the elements. Preferably, the substrate is made of a recyclable material.
[0021] In a preferred embodiment of the invention, the active ingredient element is convex in cross-section in the area of the opening. This embodiment is particularly suitable for the treatment of verrucas. These are usually very flat and thus protrude only slightly into the opening of a first support element arranged over the verruca. The convex shape of the active ingredient element improves contact between the active ingredient element and the verruca, ensuring that sufficient active ingredient can be applied to the wart. Furthermore, the active ingredient can penetrate into deeper layers of the verruca, thus supporting its complete removal.
[0022] The inventive concept of the present invention encompasses the use of an active ingredient element without a bulbous cross-sectional shape at the start of treatment, for example, for a wart, since sufficient contact between the active ingredient element and the wart surface is ensured during walking. Later in the treatment, when the surface of the wart has already been abraded, it can be beneficial for the treatment success to use an active ingredient element with a bulbous cross-sectional shape to ensure complete removal of the wart.
[0023] The present invention also relates to the use of the application system for the treatment of warts.
[0024] Preferred embodiments are explained in more detail with reference to the accompanying drawings, which show: Fig. 1 a first support element of the support system in a perspective side view; Fig. 2 an active ingredient element of the support system in top and side view; Fig. 3 an exploded view of a preferred further embodiment of the support system in use; Fig. 4 a support system in its basic state.
[0025] Fig. Figure 1 shows a first support element 1 of the support system with a top 2 and one of the top 2 opposite support side 3 The support element 1 It has a flat, two-dimensional design. In the example shown, it has a square base, although it is not limited to this shape. In particular, it can have a round or oval base.
[0026] The print side 3 of the support element 1 is completely around the opening 6 around with an adhesive 4 applied. The adhesive 4In the illustrated embodiment, the adhesive surface is designed as an adhesive layer. The adhesive is a skin-compatible adhesive that leaves no residue on the skin when removed and is as easy to peel off as possible. 4 In an embodiment not shown, it may be in the form of an adhesive pad.
[0027] Furthermore, the support element 1 with a continuous opening suitable for viewing 6 This is provided. It is located in the center of the support element. 1 arranged. In the embodiment shown, the recess is round. The size of the opening 6 The opening is chosen in such a way that a view through it is possible. 6 This ensures that one can see through it, thus effectively and safely guaranteeing that the wart is positioned exactly in the opening. 6 can be positioned and the skin areas around the opening 6The opening should not come into contact with the active ingredient when using the application system. 6 a diameter between 0.5 mm and 5 mm. A diameter between 1 mm and 3 mm is particularly preferred.
[0028] The top 2 of the support element 1 It is designed to be acid-resistant, at least in some sections. This can be achieved through an acid-resistant coating, but also by the support element... 1 is made of an acid-resistant material. It is further preferred that the top surface... 2 of the support element 1 is designed with a structure, e.g. a rough structure, on which an adhesive, e.g. an adhesive element of the active ingredient element, is applied. 5 It adheres particularly well.
[0029] Fig. 2 shows an active ingredient element 5Top and side views. The active ingredient element has a rectangular base shape and comprises one active ingredient side. 5a , that is, the side with which the active ingredient element 5 on the first support element 1 is ordered (see above). Fig. 3) and one of the active ingredient sides 5a opposite reverse side 5b The active ingredient page 5a of the active ingredient 5 encompasses an active ingredient range 55 and an adhesive surface surrounding the active ingredient area 5c The active ingredient range 55 In the illustrated embodiment, the active ingredient element is located in the center. 5 The device is arranged in a round shape and coated with an active ingredient. The active ingredient contains at least one keratolytic substance, i.e., a skin-softening or cornea-dissolving substance.
[0030] Alternatively, in an embodiment not shown, the active ingredient element can be5 also contains an active ingredient core inside and has a connection on the active ingredient side. 5a of the active ingredient 5 The arranged membrane releases the active ingredient to the outside.
[0031] Fig. Figure 3 shows an exploded view of a preferred further embodiment of the support system in use. One foot 10 with a wart 9 is treated with the support system according to the invention. For this purpose, the first support element is first 1 positioned on the foot so that the wart 9 inside the opening 6 of the first support element 1 is arranged. Preferably, the edge of the opening encloses 6 of the first support element 1 flush with the wart 9 . About the adhesive surface 4 of the first support element 1 This can be applied to the corresponding area around the wart. 9The active ingredient is applied to the designated skin areas. 5 is above the opening 6 of the first support element 1 arranged. Since the active ingredient element 5 In the illustrated version, which has a larger diameter than the diameter of the opening, the overlapping part of the active ingredient element lies [there]. 5 on the top 2 of the first support element 1 in the embodiment shown, the active ingredient element has 5 no adhesive surface 5c and is either self-adhesive or lies only on the top side. 2 of the support element 1 in the latter case, a fixation plaster is needed. 8 absolutely necessary, which includes both the active ingredient element 5 as well as the first support element 1 covers. The adhesive bandage 8It can, for example, be designed as a fixation band. It goes without saying that the fixation plaster can also be used solely to secure the active ingredient. 5 on the support element 1 to fix.
[0032] In a preferred embodiment not shown, the active ingredient side 5a of the active ingredient 5 The cross-section is bulging, so that this area of the active ingredient element 5 into the opening 6 of the support element 1 can protrude. Alternatively, the active ingredient element can 5 approximately the size of the opening in diameter 6 in the first support element 1 correspond and thus into the opening 6 of the first support element 1 be pushed in.
[0033] Fig. Figure 4 shows a basic state of the support system. In each case, a first support element is shown. 1 , an active ingredient 5and a fixation plaster 8 on a substrate 7 arranged. The substrate 7 is coated in such a way that the support element 1 , the active ingredient 5 and the adhesive bandage 8 without leaving any residue on the surface of the substrate 7 They can be removed without the adhesive losing its bonding strength. In the example shown, there are two support elements. 1 , two active ingredient elements 5 and two adhesive bandages 8 on the substrate 7 arranged, the number of elements being arbitrarily expandable. The embodiment shows that the invention also encompasses a combination in which the active ingredient element 5 with an adhesive surface 5c is equipped and yet has a fixing plaster 8 is intended. It goes without saying that the adhesive bandage 8In the embodiment shown, this is not strictly necessary and can also be omitted. However, it offers additional protection when using the support system according to the invention.
Claims
[1] Treatment system for a skin growth, in particular a verruca, comprising - a planar first support element (1) with a top surface (2) and a support side (3) opposite the top surface (2), wherein the support side (3) is at least partially coated with an adhesive (4) and - a flat active ingredient element (5) which is provided with an active substance, characterized by , that the first support element (1) has at least one continuous opening (6) suitable for viewing, and that the active ingredient element (5) is arranged above this opening (6), and that the active substance contains at least one keratolytically active substance. [2] Support system according to claim 1, characterized by , that the continuous opening (6) of the first support element (1) is a punched hole. [3] Support system according to one of the preceding claims, characterized by, that the through opening (6) of the first support element (1) is round or oval and has a diameter between 0.5 mm and 5 mm, preferably between 1 mm and 3 mm. [4] Support system according to one of the preceding claims, characterized by , that the active substance of the active ingredient element (5) contains one or more of the keratolytic substances salicylic acid, lactic acid, fluorouracil, dithranol, monochloroacetic acid, acetic acid, oxalic acid, nitric acid, copper nitrate and / or trichloroacetic acid. [5] Support system according to one of the preceding claims, characterized by , that at least one section of the top surface (2) of the support element (1) is acid-resistant, preferably coated with an acid-resistant coating. [6] Support system according to one of the preceding claims, characterized by, that the active ingredient element (5) has an active ingredient side (5a) facing the support element (1), wherein the active ingredient side (5a) comprises an active ingredient area (55) supplied with the active substance, which is surrounded by an adhesive surface (5c). [7] Support system according to one of the preceding claims, characterized by , that the adhesive force of the adhesive surface (5c) of the active ingredient element (5) is greater than the adhesive force of the adhesive (4) of the support element (1). [8] Support system according to one of the preceding claims, characterized by , that the application system has a basic state and an application state, wherein in the basic state at least one application element (1) and one active ingredient element (5) are arranged on a substrate (7) from which both can be removed without leaving any residue. [9] Support system according to any one of the preceding claims, characterized by , that the active ingredient element (5) is bulging in cross-section in the area of the opening (6). [10] Use of the application system with the features according to any one of claims 1 to 9 for the treatment of warts.