Novel residue-free plaster

By incorporating a TPU rubber bag and a heated powder layer, the design solves the problems of insufficient drug delivery and inconvenient heating in medicated plasters, enabling effective drug penetration and convenient use, thus improving the therapeutic effect and ease of use of medicated plasters.

CN223988020UActive Publication Date: 2026-03-13ANYANG LONGKANG MEDICAL EQUIP CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing medicated plasters are difficult to effectively deliver drug ingredients to the affected area after use, resulting in reduced treatment effectiveness and increased risk of skin allergies. In addition, traditional heating methods are inconvenient.

Method used

The design incorporates a TPU rubber bag filled with edible oil and a heated powder layer. Through the lubrication of the edible oil and the oxidation reaction of the iron powder, it ensures that the medicine adheres closely to the skin and heats the plaster layer, promoting drug penetration and blood circulation, and avoiding residue.

Benefits of technology

It enables the effective delivery of drug components to the affected area, improves treatment efficacy, reduces the risk of skin allergies, and is more convenient to use, eliminating the need for heating with an alcohol lamp.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223988020U_ABST
    Figure CN223988020U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel residue-free plaster patch which comprises a non-woven fabric surface layer, a non-woven fabric interlayer is arranged on one side of the non-woven fabric surface layer, a breathable film is arranged between the non-woven fabric surface layer and the non-woven fabric interlayer, a heating powder layer is arranged in the breathable film, a plaster layer is arranged on one side of the non-woven fabric interlayer, and the heating powder layer is arranged on the other side of the non-woven fabric interlayer. And a TPU rubber bag is connected between the non-woven fabric surface layer and the non-woven fabric interlayer through a pipeline. According to the utility model, by arranging the TPU rubber bag filled with edible oil, when in use, the plaster patch is directly attached to the affected part of a patient, so that the plaster is tightly attached to the skin, the medicinal components can be effectively transferred to the affected part and the blood circulation is promoted, and after the use is completed, the one-way valve is opened, and the TPU rubber bag is extruded, so that the edible oil in the TPU rubber bag can be effectively released. The plaster is intruded and soaked through the pipe orifice through the flow guide pipe, the viscosity of the plaster is reduced by utilizing the lubricity of the edible oil, and then the plaster is slowly uncovered, so that the components of the plaster cannot be remained on the skin surface.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of plaster technology, and in particular to a novel residue-free plaster. Background Technology

[0002] Plasters, commonly known as dog skin plasters, are used to treat symptoms such as promoting blood circulation, removing blood stasis, nourishing qi and blood, clearing the meridians, strengthening muscles and bones, relaxing muscles and tendons, opening the orifices and penetrating the bones, and dispelling wind and cold.

[0003] A search revealed an application with application number CN202321572843.X for a novel residue-free medicated plaster. This plaster relates to the field of medicated plaster technology. It adds a microporous membrane layer to the surface of the drug layer, allowing the drug to pass through the membrane with pore sizes of ten to twenty micrometers and directly reach the affected area. The plaster can be completely peeled off after use, preventing any residue from remaining on the skin. When peeling off, the protective membrane is removed by tearing off the adhesive strip, allowing the oily area to penetrate the adhesive layer, reducing the plaster's stickiness and making it easy to remove.

[0004] When using medicated plasters, the plaster must adhere to the skin to ensure that the medicinal ingredients can be effectively delivered to the affected area, promote blood circulation, and reduce the risk of skin allergic reactions. However, the above-mentioned utility model uses a microporous membrane layer to separate the plaster layer from the skin, thereby achieving the purpose of peeling off without residue. This structure makes the plaster not adhere tightly to the skin, which cannot effectively deliver the medicinal ingredients to the affected area, thus reducing the therapeutic effect.

[0005] To address these shortcomings, we have proposed a new type of residue-free medicated plaster. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new type of residue-free medicated plaster.

[0007] The purpose of this utility model is achieved through the following technical solution: a novel residue-free plaster, comprising a non-woven fabric surface layer, a non-woven fabric partition layer provided on one side of the non-woven fabric surface layer, a breathable membrane provided between the non-woven fabric surface layer and the non-woven fabric partition layer, and a heating powder layer provided inside the breathable membrane, a plaster layer provided on one side of the non-woven fabric partition layer, a TPU rubber bag connected between the non-woven fabric surface layer and the non-woven fabric partition layer through a pipe, the TPU rubber bag being filled with edible oil, and a one-way valve provided on the surface of the pipe, a guide pipe connected to the other side of the pipe, and a pipe opening provided on the lower surface of the guide pipe, the pipe opening penetrating and extending into the plaster layer.

[0008] Preferably, an adhesive pad is integrally provided on the side surface of the nonwoven fabric surface layer, and an adhesive layer is provided on the side surface of the adhesive pad.

[0009] Preferably, an anti-slip pad is provided on the side surface of the non-woven fabric layer and on the outside of the plaster layer, and the anti-slip pad is made of medical pressure-sensitive adhesive material.

[0010] Preferably, the heating powder layer is composed of iron powder, activated carbon, vermiculite, inorganic salts and water.

[0011] Preferably, a protective sleeve is provided on the back side of the nonwoven fabric surface.

[0012] Preferably, both the adhesive pad and the plaster layer have release paper on their surfaces.

[0013] This utility model has the following advantages:

[0014] (1) In this utility model, by setting a TPU rubber bag containing edible oil, when using the plaster, the plaster is directly applied to the patient's affected area, so that the plaster adheres tightly to the skin, ensuring that the drug ingredients can be effectively delivered to the affected area and promote blood circulation. After use, the one-way valve is opened and the TPU rubber bag is squeezed so that the edible oil inside can enter and permeate the plaster through the guide tube and the tube opening. The lubricity of the edible oil reduces the adhesive viscosity of the plaster. Then, it is slowly peeled off so that the plaster ingredients will not remain on the skin surface.

[0015] (2) By setting a heating powder layer, when in use, oxygen in the air will pass through the non-woven fabric surface and breathable membrane and come into contact with the iron powder. The iron powder absorbs oxygen in the humid air and causes corrosion and releases heat, thereby heating the plaster layer. This allows the medicinal ingredients of the plaster to penetrate the skin better, improve the efficacy, and promote local blood circulation, which helps the absorption and metabolism of the medicinal ingredients. There is no need to use an alcohol lamp to bake it, making the plaster more convenient to use and greatly improving the convenience of using the new plaster. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the surface connection structure of a nonwoven fabric.

[0018] Figure 3 This is a schematic diagram of the adhesive pad connection structure.

[0019] In the diagram, 1-non-woven fabric surface layer, 2-heating powder layer, 3-non-woven fabric partition layer, 4-breathable membrane, 5-plaster layer, 6-sheath pad, 7-adhesive pad, 8-anti-slip pad, 9-guide tube, 10-pipe opening, 11-TPU rubber bag, 12-one-way valve, 13-adhesive layer, 14-release paper. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, 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 limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0026] like Figure 1-3As shown, a novel residue-free plaster includes a non-woven fabric surface layer 1, a non-woven fabric partition layer 3 on one side of the non-woven fabric surface layer 1, a breathable membrane 4 between the non-woven fabric surface layer 1 and the non-woven fabric partition layer 3, and a heating powder layer 2 inside the breathable membrane 4. A plaster layer 5 is provided on one side of the non-woven fabric partition layer 3. A TPU rubber bag 11 is connected between the non-woven fabric surface layer 1 and the non-woven fabric partition layer 3 through a pipe, and the TPU rubber bag 11 is filled with edible oil. A one-way valve 12 is provided on the surface of the pipe, and a guide pipe 9 is connected to the other side of the pipe. A pipe opening 10 is provided on the lower surface of the guide pipe 9, and the pipe opening 10 extends through and into the plaster layer 5. The heating powder layer 2 is composed of iron powder, activated carbon, vermiculite, inorganic salts and water.

[0027] In one embodiment, by providing a TPU rubber bag 11 containing edible oil, the plaster is directly applied to the patient's affected area during use, ensuring a close fit between the plaster and the skin. This ensures that the medicinal ingredients can be effectively delivered to the affected area, promoting blood circulation. After use, the one-way valve 12 is opened, and the TPU rubber bag 11 is squeezed, allowing the edible oil inside to penetrate and permeate the plaster through the guide tube 9 and the opening 10. The lubricity of the edible oil reduces the adhesiveness of the plaster, which is then slowly peeled off, preventing any plaster ingredients from remaining on the skin surface. By providing a heating powder layer 2, oxygen in the air permeates through the non-woven fabric surface layer 1 and the breathable membrane 4 during use, coming into contact with the iron powder. The iron powder absorbs oxygen in the humid air, causing corrosion and releasing heat, thereby heating the plaster layer 5. This allows the medicinal ingredients of the plaster to better penetrate the skin, improving efficacy and promoting local blood circulation, which helps with the absorption and metabolism of the medicinal ingredients. No special heating with an alcohol lamp is required, making the plaster more convenient to use and greatly improving the ease of use of the new type of plaster.

[0028] Specifically, an adhesive pad 7 is integrally provided on the side surface of the nonwoven fabric surface layer 1, and an adhesive layer 13 is provided on the side surface of the adhesive pad 7.

[0029] In one embodiment, the medicated plaster is adhered to the skin surface using the adhesive layer 13.

[0030] Specifically, an anti-slip pad 8 is provided on the side surface of the non-woven fabric layer 1 and on the outside of the plaster layer 5, and the anti-slip pad 8 is made of medical pressure-sensitive adhesive material.

[0031] In one embodiment, a non-slip pad 8 made of medical pressure-sensitive adhesive material is used to ensure that the edges of the plaster adhere tightly to the skin.

[0032] Specifically, a protective pad 6 is provided on the back of the non-woven fabric surface layer 1.

[0033] In one embodiment, a finger can be inserted between the nonwoven fabric surface 1 and the protective pad 6 to facilitate subsequent application or removal of the plaster.

[0034] Specifically, release paper 14 is provided on the surface of both the adhesive pad 7 and the plaster layer 5.

[0035] In one embodiment, release paper 14 is used to isolate and protect the surfaces of the adhesive pad 7 and the plaster layer 5 to prevent them from failing prematurely.

[0036] The working process of this utility model is as follows: By setting a TPU rubber bag 11 containing edible oil, the plaster is directly applied to the patient's affected area during use, ensuring a close fit between the plaster and the skin, so that the drug ingredients can be effectively delivered to the affected area and promote blood circulation. After use, the one-way valve 12 is opened and the TPU rubber bag 11 is squeezed, allowing the edible oil inside to enter and permeate the plaster through the guide tube 9 and the tube opening 10. The lubricity of the edible oil reduces the adhesiveness of the plaster, and then it is slowly peeled off, so that the plaster ingredients do not remain on the skin surface. By setting a heating powder layer 2, during use, oxygen in the air will pass through the non-woven fabric surface layer 1 and the breathable membrane 4 and come into contact with the iron powder. The iron powder absorbs oxygen in the humid air and undergoes corrosion and releases heat, thereby heating the plaster layer 5. This allows the drug ingredients of the plaster to better penetrate into the skin, improve the efficacy, and promote local blood circulation, which helps the absorption and metabolism of drug ingredients. There is no need to use an alcohol lamp to bake it, making the plaster more convenient to use and greatly improving the ease of use of the new plaster.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A new type of residue-free plaster patch comprising a non-woven fabric surface layer (1), characterized in that: The side of the non-woven fabric surface layer (1) is provided with a non-woven fabric interlayer (3), a breathable film (4) is arranged between the non-woven fabric surface layer (1) and the non-woven fabric interlayer (3), and the inside of the breathable film (4) is provided with a heating powder layer (2); the side of the non-woven fabric interlayer (3) is provided with a plaster layer (5); the non-woven fabric surface layer (1) and the non-woven fabric interlayer (3) are connected with a TPU rubber bag (11) through a pipeline, the TPU rubber bag (11) is filled with edible oil, and the surface of the pipeline is provided with a one-way valve (12); the other side of the pipeline is connected with a flow guide pipe (9), the lower surface of the flow guide pipe (9) is provided with a pipe opening (10), and the pipe opening (10) penetrates and extends into the plaster layer (5).

2. A novel residue-free plaster patch as claimed in claim 1, wherein: The side surface of the non-woven fabric surface layer (1) is integrally provided with a bonding pad (7), and the side surface of the bonding pad (7) is provided with a bonding glue layer (13).

3. A novel residue-free plaster patch as claimed in claim 2, wherein: The side surface of the non-woven fabric surface layer (1) and outside the plaster layer (5) are provided with an anti-skid pad (8), and the anti-skid pad (8) is made of medical pressure-sensitive adhesive material.

4. A novel residue-free plaster patch as claimed in claim 3, wherein: The heating powder layer (2) is mixed by iron powder, activated carbon, vermiculite, inorganic salt and water.

5. A novel residue-free plaster patch as claimed in claim 4, wherein: The back of the non-woven fabric surface layer (1) is provided with a sheath pad (6).

6. A novel residue-free plaster patch as claimed in claim 5, wherein: The surfaces of the bonding pad (7) and the plaster layer (5) are provided with release paper (14).

Citation Information

Patent Citations

  • Novel residue-free plaster

    CN220110119U