A novel plaster for relieving cough

Abstract

The utility model relates to plaster technology field especially, points to a kind of novel plaster for relieving cough, including the backing layer, drug layer, skin-friendly layer and release layer of laminated connection, is equipped with indentation line along the thickness direction of the backing layer, and the indentation line does not penetrate the backing layer, the backing layer includes polyurethane elastomer and thermoplastic elastomer, the drug layer, skin-friendly layer and release layer are all equipped with the sub-indentation line matching with the indentation line, the application is equipped with indentation line and sub-indentation line by being arranged in backing layer and other layers, so that the plaster of the application can be elastically deformed according to the position to be laid and realize self-adapting adjustment, so that plaster and body surface stable contact, improve the treatment effect of plaster, and indentation line can be set into multiple shapes according to the position to be laid acupoint and part, improve the application scope of the application.

Description

Technical Field

[0001] This utility model relates to the field of plaster technology, and more particularly to a novel plaster for relieving cough. Background Technology

[0002] Among the many ways to deal with coughs, cough syrup patches have gained widespread attention as a commonly used treatment due to their unique advantages. From the perspective of traditional Chinese medicine, cough syrup patches mainly work based on the theory of meridians and acupoints.

[0003] Currently, most new cough-relieving plasters on the market adopt a fixed-shape design. While this design offers certain conveniences in production and packaging, it reveals significant limitations in actual use. Due to the complex and diverse physiological structure of the human body, different parts have varying shapes and curvatures. For example, joints, which are frequently active and irregularly shaped (like the knee and elbow), experience stretching and bending deformation of the skin during flexion and extension. The neck also has a unique shape, with a certain curvature, and the skin's condition constantly changes during daily activities such as turning, lowering, and raising the head. Furthermore, the size and shape of acupoints used to relieve coughs also vary from person to person. However, traditional fixed-shape plasters often cannot adaptively adjust to the characteristics of these special areas and acupoints, making it difficult to achieve a tight fit. This leads to gaps or air bubbles easily forming between the plaster and the skin during use, preventing the plaster from fully exerting its therapeutic effect. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a novel plaster for relieving cough.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel plaster for relieving cough includes a backing layer, a drug layer, a skin-friendly layer, and a release layer that are stacked and connected together. An indentation line is provided along the thickness direction of the backing layer, and the indentation line does not penetrate the backing layer. The drug layer, the skin-friendly layer, and the release layer are each provided with sub-indentation lines that match the indentation line.

[0007] Preferably, the backing layer comprises a polyurethane elastomer and a thermoplastic elastomer.

[0008] Preferably, the drug layer includes a drug base layer and a directional penetration base layer, which are connected by a pressure-sensitive adhesive.

[0009] Preferably, the drug-containing substrate has a drug storage cavity, and the directional permeation substrate includes a microneedle array and a temperature-sensitive pore adjustment membrane.

[0010] Preferably, the skin-friendly layer comprises a matrix sublayer and an anti-adhesion sublayer, wherein the matrix sublayer comprises silicone gel and the anti-adhesion sublayer comprises cotton nonwoven fabric.

[0011] Preferably, the skin-friendly layer is connected to the release layer via pressure-sensitive adhesive, and the release layer includes release paper.

[0012] The beneficial effects of this utility model are as follows:

[0013] This application provides indentation lines and sub-indentation lines in the backing layer and other layers, enabling the plaster to adapt to the location to be applied by elastic deformation, thus ensuring stable contact between the plaster and the body surface and improving the therapeutic effect of the plaster.

[0014] Furthermore, the indentation lines can be set into various shapes according to the acupoints and locations to be treated, thereby expanding the applicability of this application. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the novel plaster in a specific embodiment of the present invention;

[0016] Figure 2 This is a diagram showing the distribution of indentation lines in the backing layer in a specific embodiment of this utility model;

[0017] Figure 3 This is a structural diagram of the skin-friendly layer in a specific embodiment of this utility model;

[0018] Figure 4 This is a diagram of the directional permeation base layer structure in a specific embodiment of this utility model.

[0019] The following are the symbols and their meanings: 1. Backing layer; 2. Drug layer; 201. Drug base layer; 202. Targeted penetration base layer; 3. Skin-friendly layer; 301. Matrix sublayer; 302. Anti-adhesion sublayer; 4. Release layer; 5. Indentation line; 6. Microneedle array; 7. Release paper. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0021] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. It should be noted that, unless otherwise explicitly specified and limited, terms such as "installed," "equipped with," "sleeved / connected," and "connected" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1

[0023] Please see Figures 1-4 As shown, this utility model relates to a novel plaster for relieving cough, comprising a backing layer 1, a drug layer 2, a skin-friendly layer 3, and a release layer 4 that are stacked and connected together;

[0024] Specifically, an indentation line 5 is provided along the thickness direction of the backing layer 1, and the indentation line 5 does not penetrate the backing layer 1, wherein the backing layer 1 includes a polyurethane elastomer and a thermoplastic elastomer.

[0025] Specifically, the indentation line 5 is formed on the backing layer 1 by cold pressing or hot pressing. This indentation causes the material to undergo local orientation changes and thickness reduction. This structure can ensure smooth bending and has excellent tear resistance and resilience because the material itself is continuous.

[0026] Furthermore, the indentation line 5 is configured with various structures, specifically including:

[0027] A series of spaced-apart V-shaped indentation lines 5 are precisely die-cut into the intended bending area of ​​the plaster, forming a series of micron-level V-shaped indentation lines 5. These indentation lines 5 are 70% of the total thickness, ensuring sufficient continuous material layers to provide resilience. The V-shaped openings face the edges of the plaster, and the bottom features a rounded corner design with an R0.3mm radius. When the plaster needs to conform to the slight curvature of the Tanzhong acupoint, these V-shaped cuts will close preferentially at the openings, allowing the plaster to bend. Meanwhile, the continuous material and elastic backing at the bottom act like a spring to store and release restorative energy.

[0028] Furthermore, in some other embodiments, the indentation lines 5 are partitioned in the backing layer 1. For example, to adapt to the complex contour of the Tian Tu acupoint, the central area of ​​the backing layer 1 is provided with high-density grid-like foldable lines, which can deform in three dimensions like a bowl; while the outer area is provided with low-density radial foldable lines, which mainly provide two-dimensional planar bonding ability to ensure firm adhesion.

[0029] Furthermore, in some other embodiments, the backing layer 1 is made of an elastic material, namely, the drug matrix sublayer 301, comprising:

[0030] Gel: An elastomer composed of a polymer network and water, with a three-dimensional network structure, which can not only carry drugs, but also provide excellent flexibility and cooling sensation, thus improving the user experience;

[0031] Foam dressing materials, such as polyurethane foam and silicone foam, have a porous structure that makes them easy to compress and rebound, and can also absorb a small amount of sweat.

[0032] Silicone gel: It has the best biocompatibility, is very soft, and has long-lasting elasticity.

[0033] The backing layer 1 is connected to the drug layer 2, wherein the drug layer 2 includes a drug base layer 201 and a directional penetration base layer, and the drug base layer 201 and the directional penetration base layer are connected by pressure-sensitive adhesive.

[0034] Specifically, the drug base layer 201 is provided with a drug storage cavity, which is used to place cough-relieving drugs. The directional permeation base layer is used to allow the drugs inside the drug storage cavity to permeate in one direction, such as towards the patient's body surface, to avoid backflow.

[0035] The directional penetration substrate includes a microneedle array 6 on the surface and a temperature-sensitive pore-regulating membrane. The needle length and number are adjustable according to the acupoints to be treated. For example, the microneedle density in the area corresponding to the Tian Tu acupoint is 80-100 needles / cm². 2 The area corresponding to the Lung Shu acupoint is 50-70 needles / cm. 2 The pore diameter of the thermosensitive pore regulating membrane gradually increases as the patient's body surface temperature rises.

[0036] The microneedle array creates micron-level channels (pore size 20-100μm) that bypass the stratum corneum barrier, allowing drugs to directly reach the capillary network in the deep epidermis (depth 150-300μm), improving transdermal efficiency by 3-5 times compared to traditional chemical penetration enhancers.

[0037] The drug layer 2 is connected to the skin-friendly layer 3 on the side away from the backing layer 1. The skin-friendly layer 3 includes a matrix sublayer 301 and an anti-adhesion sublayer 302. The matrix sublayer 301 includes silicone gel, and the anti-adhesion layer 302 includes cotton nonwoven fabric.

[0038] The skin-friendly layer 3 is connected to the release layer 4 by pressure-sensitive adhesive, and the release layer 4 includes release paper 7 or cellophane;

[0039] The drug layer 2, skin-friendly layer 3, and release layer 4 are all provided with sub-indentation lines that match the indentation line 5, and the depth of the indentation line 5 is less than the thickness of each layer of the plaster. The sub-indentation lines and the indentation line 5 are arranged in the same way, and are not shown in detail in the attached drawings.

[0040] Furthermore, in some other embodiments, in order to improve the overall elasticity of the patch, the drug layer 2, the skin-friendly layer 3, and the release layer 4 are all filled with polyurethane elastomer and thermoplastic elastomer.

[0041] Example 2

[0042] Based on the above embodiments, the working principle of this application can be derived as follows:

[0043] The medication to be relieved and relieved is filled into the medication layer 2, and the medication base layer 201 and the directional penetration base layer are sealed. The release paper 7 is peeled off from the skin-friendly layer 3, and the plaster is applied to the body surface. According to the acupoints or areas to be applied, the position of the plaster and the human body is adjusted by the indentation line 5 and sub-indentation line 5 of the backing layer 1 to ensure that the plaster is stably adhered to the user's body surface and improve the therapeutic effect of the plaster.

[0044] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A novel plaster for relieving cough, characterized in that, It includes a backing layer (1), a drug layer (2), a skin-friendly layer (3) and a release layer (4) that are stacked together. An indentation line (5) is provided along the thickness direction of the backing layer (1), and the indentation line (5) does not penetrate the backing layer (1). The drug layer (2), the skin-friendly layer (3) and the release layer (4) are each provided with a sub-indentation line that matches the indentation line (5).

2. The novel plaster for relieving cough according to claim 1, characterized in that, The drug layer (2) includes a drug base layer (201) and a directional penetration base layer (202), which are connected by pressure-sensitive adhesive.

3. The novel plaster for relieving cough according to claim 2, characterized in that, The drug-containing substrate (201) is provided with a drug storage cavity, and the directional permeation substrate (202) includes a microneedle array (6) and a temperature-sensitive pore adjustment membrane.

4. The novel cough-relieving plaster according to claim 3, characterized in that, The skin-friendly layer (3) includes a matrix sublayer (301) and an anti-adhesion sublayer (302).

5. The novel cough-relieving plaster according to claim 4, characterized in that, The skin-friendly layer (3) is connected to the release layer (4) by pressure-sensitive adhesive, and the release layer (4) includes release paper (7).

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