A transdermal absorption nursing patch

Abstract

The utility model relates to the technical field of plaster and discloses a transdermal absorption nursing plaster, which comprises a plaster body, a medicine ointment area for applying medicine ointment and a sticking area for sticking are arranged on the bottom surface of the plaster body, the sticking area is arranged around the medicine ointment area, and the two are separated by an anti-overflow barrier, the anti-overflow barrier is a closed shape with the head connected to the tail, the anti-overflow barrier is a hollow PU film, and the inside is filled with gel. The transdermal absorption nursing plaster sets an anti-overflow barrier between the medicine ointment area and the sticking area, can effectively prevent the medicine ointment from seeping outward during sticking, thereby avoiding the pollution of the sticking area and the skin surrounding area by the medicine ointment, and achieving the effects of anti-overflow and anti-falling.

Description

Technical Field

[0001] This utility model relates to the field of patch technology, specifically a transdermal absorption care patch. Background Technology

[0002] By applying a traditional Chinese medicine ointment with the effects of promoting blood circulation, removing blood stasis, reducing inflammation and relieving pain, or warming the meridians and unblocking collaterals onto the patch and attaching it to the corresponding part of the body, the effective ingredients in the traditional Chinese medicine can enter the subcutaneous tissue or local blood vessels through transdermal absorption, thereby exerting a long-lasting and gentle therapeutic effect.

[0003] However, in practical use, we have found that existing transdermal patches still have some problems: Traditional patches typically involve applying ointment to the entire surface, lacking a physical barrier between the ointment area and the adhesive area. As a result, once the patch is applied to the skin, the ointment can easily soften, flow, or even overflow to the edges of the patch due to factors such as body temperature, sweat, and muscle activity. This not only leads to uneven distribution of the medication but also causes the adhesive layer to lose its stickiness and the patch to fall off. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a transdermal absorption care patch with the advantages of preventing spillage and falling off.

[0005] (II) Technical Solution To achieve the aforementioned objectives of preventing spillage and detachment, this utility model provides the following technical solution: a transdermal absorption nursing patch, comprising a patch body, wherein the bottom surface of the patch body is provided with an ointment area for applying ointment and an adhesive area for adhesion. The adhesive area is arranged around the ointment area, and the two are separated by an anti-overflow barrier, which is a closed shape with the ends connected. The spill-proof barrier is a hollow PU film filled with gel.

[0006] Furthermore, the adhesive area is covered with release paper.

[0007] Furthermore, the release paper has a release film in the middle for covering the ointment area.

[0008] Furthermore, the patch body has evenly distributed breathable micropores corresponding to the ointment area.

[0009] Furthermore, the PU film is uniformly provided with moisture-controlling micropores.

[0010] Furthermore, the gel is a PVA freeze-thaw gel.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a transdermal absorption care patch with the following beneficial effects: 1. This transdermal absorption care patch, by setting an anti-overflow barrier between the medicated area and the adhesive area, can effectively prevent the medicated ointment from seeping outward during the application process, thereby avoiding contamination of the adhesive area and the surrounding skin area with the medicated ointment, and achieving the effects of preventing overflow and falling off.

[0012] 2. This transdermal absorption nursing patch, after application, gradually softens and collapses under the influence of humidity and temperature, becoming thinner, thus providing a good three-dimensional anti-overflow effect in the early stages of use, and gradually conforming to the skin in the later stages of use, ensuring the uniform diffusion and transdermal absorption of the ointment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a cross-sectional view of the overflow prevention and blocking part of this utility model.

[0014] In the diagram: 1. Main body of the patch; 2. Anti-overflow barrier; 3. Ointment area; 4. Breathable micropores; 5. Release paper; 6. Release film; 201. PU film; 202. Moisture-controlling micropores; 203. Gel; 204. Adhesive tape. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Please see Figures 1-3 This utility model discloses a transdermal absorption nursing patch, the main body of which is a patch body 1. On the bottom surface of the patch body 1, there is a medicated area 3 for applying ointment and an adhesive area for sticking. The adhesive area is arranged around the medicated area 3. The adhesive area can effectively stick and fix the patch body 1 to the human body. Through the ointment on the medicated area 3, the effective ingredients in the traditional Chinese medicine can enter the subcutaneous tissue or local blood vessels through transdermal absorption to exert a therapeutic effect.

[0017] In this embodiment, the adhesive area and the ointment area 3 are separated by an anti-overflow barrier 2. The anti-overflow barrier 2 is a closed shape with its ends connected, such as a circle, rectangle, or ellipse. The anti-overflow barrier 2 can form an independent boundary, effectively preventing the ointment from seeping outward during the application process, thereby avoiding the ointment from contaminating the adhesive area and the surrounding skin area, and achieving the effects of preventing overflow and preventing detachment.

[0018] Furthermore, the spill-proof barrier 2 is a hollow PU film 201 with uniformly distributed moisture-controlling micropores 202. The interior of the film is filled with gel 203, specifically PVA freeze-thaw gel. After the patch body 1 is applied, the PVA freeze-thaw gel can gradually soften and collapse under the influence of humidity and temperature, thereby reducing the thickness of the spill-proof barrier 2. This provides a good three-dimensional spill-proof effect in the early stage of use, and gradually adheres to the skin in the middle and later stages of use, ensuring the uniform diffusion and transdermal absorption of the ointment. The moisture-controlling micropores 202 allow water vapor to slowly penetrate into the membrane, creating a controllable softening rate, thus achieving the "gradual thinning" of the overflow barrier 2. The pore size and density of the moisture-controlling micropores 202 can be adjusted according to the expected usage time, thereby precisely controlling the moisture absorption rate of the gel 203 and ensuring that the overflow barrier 2 thins from thick to thin at the expected rate throughout the entire application cycle, avoiding sudden collapse.

[0019] PVA freeze-thaw gel specifically refers to polyvinyl alcohol gel prepared by physical freeze-thaw method. It has good biocompatibility, stability and flexibility. Since this material is existing technology, its specific preparation method will not be described in this embodiment. When applied, the water vapor required for the softening of gel 203 comes from the moisture that evaporates naturally from human skin. It slowly enters through the moisture-controlling micropores 202 on the PU film 201, thereby allowing gel 203 to gradually absorb moisture.

[0020] Furthermore, the moisture-controlling micropores 202 on the PU film 201 are only opened on the side of the PU film 201 that does not come into contact with the ointment, in order to prevent moisture in the ointment from entering the PU film 201. Although the solid particles, oil molecules, and colloidal particles in the ointment are usually larger than 1 micrometer in diameter and have high viscosity, they cannot pass through the moisture-controlling micropores 202.

[0021] In this embodiment, breathable micropores 4 are evenly provided on the patch body 1 corresponding to the ointment area 3 to ensure air circulation in the ointment area, prevent discomfort such as maceration and itching caused by local heat and moisture accumulation, and further improve the comfort of use.

[0022] When not in use, the adhesive area can be covered by release paper 5. In addition, a release film 6 can be set in the middle of the release paper 5 to cover the ointment area 3, which serves to protect and prevent contamination.

[0023] In this invention, the spill-proof barrier 2 can be pre-installed directly on the patch body 1, or it can be... Figure 3 As shown, the adhesive tape 204 on the top surface is used to attach the patch to the main body 1. Those skilled in the art can choose the appropriate method of use according to actual needs.

[0024] Therefore, the transdermal absorption nursing patch of this utility model can reliably prevent ointment from spilling in the early stage of use, and can gradually achieve flexible fit in the middle and later stages of use. The overall structure is simple, safe and easy to mass-produce.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transdermal absorption nursing patch, comprising a patch body (1), wherein the bottom surface of the patch body (1) is provided with an ointment area (3) for applying ointment and an adhesive area for adhesion, characterized in that: The adhesive area is arranged around the ointment area (3), and the two are separated by an overflow barrier (2), which is a closed shape with the ends connected. The spill-proof barrier (2) is a hollow PU film (201) and is filled with gel (203).

2. The transdermal absorption nursing patch according to claim 1, characterized in that: The pasting area is covered by release paper (5).

3. The transdermal absorption nursing patch according to claim 2, characterized in that: The release paper (5) has a release film (6) in the middle for covering the ointment area (3).

4. The transdermal absorption nursing patch according to claim 1, characterized in that: The patch body (1) has evenly distributed breathable micropores (4) at the position corresponding to the ointment area (3).

5. The transdermal absorption nursing patch according to claim 1, characterized in that: The PU film (201) has uniformly formed moisture-controlling micropores (202).

6. The transdermal absorption nursing patch according to claim 1, characterized in that: The gel (203) is a PVA freeze-thaw gel.

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