A transdermal patch for medical use

By introducing limiting holes and slot structures into the transdermal patch, combined with a highly durable adhesive and breathable microporous design, the problems of transdermal patches easily falling off and causing skin damage on joints, arms, and legs are solved, achieving stable fixation and convenient replacement.

CN224523413UActive Publication Date: 2026-07-21HANSHENG (SHANDONG) PHARMACEUTICAL CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANSHENG (SHANDONG) PHARMACEUTICAL CO LTD
Filing Date
2025-06-19
Publication Date
2026-07-21

Smart Images

  • Figure CN224523413U_ABST
    Figure CN224523413U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of transdermal patches for medicine, including patch body and waterproof membrane, patch body upper surface is symmetrically provided with receiving groove, elastic bandage is provided in receiving groove, a plurality of limiting holes are equidistantly provided on the upper surface of elastic bandage, patch body upper surface is symmetrically provided with fixed column, clamping groove is provided on the side surface of fixed column, placing groove is provided on the upper surface of patch body, and medicine body is provided in placing groove, pressure block is provided on the bottom surface of waterproof membrane, and adhesive layer one is provided on the bottom surface of waterproof membrane.The utility model tears off isolating membrane by release paper, one side of patch body through-hole is pasted with skin, adheres on skin by adhering layer two, when adhering in joint, arm and leg, tear off sealing adhesive tape by release paper, take out the elastic bandage folded in receiving groove, encircle in joint, arm and leg, then be set on fixed column by limiting hole, limiting hole side is clamped into clamping groove, and be fixed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of transdermal patch technology, and in particular relates to a transdermal patch for medical use. Background Technology

[0002] A transdermal patch is a technology that delivers medication through the skin. The medication is loaded onto the patch and penetrates the skin into the bloodstream for systemic treatment. Compared to oral or injectable administration, transdermal patches avoid the first-pass effect in the liver, providing more stable and sustained blood drug concentrations.

[0003] Existing devices are inconvenient to use in medical applications, requiring repeated removal and replacement of medication, which can cause secondary damage to the patient's skin. Furthermore, prolonged use can lead to problems such as the adhesive failing to stick and detachment from joints, arms, and legs. Therefore, a transdermal patch for medical use is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a transdermal patch for medical use, thereby solving existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a transdermal medical patch, comprising a patch body and a waterproof membrane. The patch body has symmetrically arranged storage grooves on its upper surface, within which an elastic bandage is placed. The upper surface of the elastic bandage has several equidistant limiting holes. The patch body also has symmetrically arranged fixing posts on its upper surface, each with a slot on its periphery. A placement groove is also formed on the upper surface of the patch body, containing the medication. A pressure block is located on the bottom surface of the waterproof membrane, and an adhesive layer is formed on its bottom surface. A sealing sticker is placed on the upper surface of the patch body above the storage groove. Several through holes are formed on the bottom surface of the placement groove. The elastic bandage is foldable. A second adhesive layer is formed on the bottom surface of the patch body, and a release liner is formed on the bottom surface of the second adhesive layer. A release liner is provided on one side of each of the release liner, the sealing sticker, and the waterproof membrane.

[0007] Furthermore, the shape and size of the limiting hole are adapted to the fixing post, the inner wall side of the limiting hole is engaged with the slot, the waterproof membrane is pasted on the upper surface of the patch body through the adhesive layer, and the pressure block is located above the patch body and is attached to the upper surface of the patch body.

[0008] This utility model has the following beneficial effects:

[0009] This invention involves peeling off the release film with a peel-off paper, then adhering the perforated side of the patch to the skin. It is then bonded to the skin via the second adhesive layer. When applied to joints, arms, or legs, the sealing sticker is peeled off with the peel-off paper, and the folded elastic bandage inside the storage slot is removed and wrapped around the joint, arm, or leg. It is then fitted onto the fixing post through the limiting hole, with the side of the limiting hole engaging in the slot for fixation. This prevents the adhesive from detaching after prolonged use on joints, arms, and legs. After a period of use, when the medication in the patch becomes ineffective, the waterproof membrane is peeled off with the peel-off paper to create an opening large enough to replace the patch. The perforated hole at the bottom of the storage slot is for drug penetration. The second adhesive layer, while not explicitly stated to use a highly durable adhesive, incorporates breathable micropores to reduce skin irritation from long-term application.

[0010] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the overall structure of a transdermal patch for medical use;

[0013] Figure 2 An exploded view of the bottom of a transdermal medical patch;

[0014] Figure 3 An exploded view of the top of a transdermal patch for medical use.

[0015] The components represented by each number in the attached diagram are listed below: 1. Patch body; 10. Storage slot; 102. Elastic bandage; 103. Limiting hole; 104. Fixing post; 105. Card slot; 101. Sealing sticker; 11. Waterproof membrane; 110. Pressure block; 111. Adhesive layer one; 112. Medicine body; 13. Release film; 14. Placement slot; 140. Through hole; 15. Adhesive layer two; 12. Release paper. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0017] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., 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.

[0019] Please see Figures 1-3 As shown, this utility model is a transdermal patch for medical use, including a patch body 1 and a waterproof membrane 11. The patch body 1 has symmetrically arranged storage grooves 10 on its upper surface, and an elastic bandage 102 is arranged in the storage groove 10. The upper surface of the elastic bandage 102 has a plurality of limiting holes 103 at equal intervals. The patch body 1 has symmetrically arranged fixing posts 104 on its upper surface, and the fixing posts 104 have slots 105 on their peripheral sides. The patch body 1 has an opening groove 14 on its upper surface, and a medicine body 112 is arranged in the opening groove 14. The bottom surface of the waterproof membrane 11 has a pressing block 110, and the bottom surface of the waterproof membrane 11 has an adhesive layer 111.

[0020] Furthermore, a sealing sticker 101 is provided on the upper surface of the patch body 1 above the storage groove 10, and several through holes 140 are opened on the bottom surface inside the placement groove 14. The elastic bandage 102 is foldable, and an adhesive layer 15 is provided on the bottom surface of the patch body 1.

[0021] Furthermore, an isolation film 13 is provided on the bottom surface of the second adhesive layer 15. A release paper 12 is provided on one side of the isolation film 13, the sealing sticker 101, and the waterproof film 11. The shape and size of the limiting hole 103 are adapted to the fixing post 104, and the inner wall side of the limiting hole 103 is engaged with the slot 105.

[0022] Furthermore, the waterproof membrane 11 is adhered to the upper surface of the patch body 1 via the adhesive layer 111, and the pressure block 110 is located above the patch body 112 and adheres to the upper surface of the patch body 112.

[0023] It should be noted that in this invention, the release film 13 is peeled off by the peeling paper 12, and the through hole 140 side of the patch body 1 is attached to the skin. It is then adhered to the skin by the second adhesive layer 15. When it is adhered to joints, arms, and legs, the sealing sticker 101 is peeled off by the peeling paper 12, and the folded elastic bandage 102 in the storage slot 10 is taken out and wrapped around the joints, arms, and legs. It is then fitted onto the fixing post 104 through the limiting hole 103. The side of the limiting hole 103 is inserted into the slot 105 for fixation, preventing closure. Prolonged use on joints, arms, and legs may cause the adhesive to detach. After a period of use, the medication in the main body 112 will become ineffective. Then, the waterproof membrane 11 can be torn open by peeling off the paper 12 to make an opening large enough to replace the medication in the main body 112. The through hole 140 at the bottom of the placement groove 14 is used for drug penetration. The second adhesive layer 15 does not specify the use of a highly durable adhesive such as medical silicone. The second adhesive layer 15 has added breathable micropores to reduce skin irritation from long-term application.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A transdermal patch for medical use, comprising a patch body (1) and a waterproof membrane (11), characterized in that: The patch body (1) has symmetrically arranged storage grooves (10) on its upper surface. An elastic bandage (102) is provided in the storage groove (10). A plurality of limiting holes (103) are equidistantly arranged on the upper surface of the elastic bandage (102). A fixing post (104) is symmetrically arranged on the upper surface of the patch body (1). A slot (105) is provided on the periphery of the fixing post (104). A placement groove (14) is provided on the upper surface of the patch body (1). A medicine body (112) is provided in the placement groove (14). A pressing block (110) is provided on the bottom surface of the waterproof membrane (11). An adhesive layer (111) is provided on the bottom surface of the waterproof membrane (11).

2. The transdermal patch for medical use according to claim 1, characterized in that, A sealing sticker (101) is provided on the upper surface of the patch body (1) above the storage groove (10), and several through holes (140) are provided on the bottom surface inside the placement groove (14).

3. The transdermal patch for medical use according to claim 1, characterized in that, The elastic bandage (102) is foldable, and the bottom surface of the patch body (1) is provided with an adhesive layer two (15).

4. A transdermal patch for medical use according to claim 3, characterized in that, The bottom surface of the second adhesive layer (15) is provided with a release film (13), and a release paper (12) is provided on one side of the release film (13), the sealing sticker (101) and the waterproof film (11).

5. A transdermal patch for medical use according to claim 1, characterized in that, The shape and size of the limiting hole (103) are adapted to the fixing post (104), and the inner wall side of the limiting hole (103) is engaged with the slot (105).

6. A transdermal patch for medical use according to claim 1, characterized in that, The waterproof membrane (11) is adhered to the upper surface of the patch body (1) by an adhesive layer (111), and the pressure block (110) is located above the medicine body (112) and adheres to the upper surface of the medicine body (112).