Analgesic patch for intramuscular injection
The modular design of the intramuscular injection pain relief patch allows for convenient tablet replacement and personalized adjustments, solving the problem of fixed tablet dosage in existing pain relief patches. This improves treatment effectiveness and user comfort, while reducing replacement frequency and costs.
Patent Information
- Application Number
- CN202520267188.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-19
AI Technical Summary
The existing intramuscular injection pain relief patches have fixed dosages, which cannot meet the individual needs of different patients, resulting in poor treatment effects.
A modular pain relief patch was designed, comprising a patch base layer, a tablet support layer, and a retaining ring structure. This allows for adjustment of the tablet thickness according to the patient's needs and enables convenient replacement via a ring-shaped adhesive and Velcro, improving comfort and lifespan.
It enables convenient tablet replacement and personalized adjustments, improves treatment efficacy, enhances user comfort, and reduces replacement frequency and cost.
Smart Images

Figure CN223615267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary products technology, specifically a pain relief patch for intramuscular injection. Background Technology
[0002] Intramuscular injection pain relief patches are an innovative medical aid designed to relieve pain and local discomfort after intramuscular injections. Combining modern medical technology and materials science, these patches, through specific design and material selection, provide effective pain relief and swelling reduction at the injection site. They are suitable for various scenarios requiring intramuscular injection treatment, such as vaccination and drug therapy.
[0003] The pain-relieving ingredients contained in the pain-relieving patch can act directly on the intramuscular injection site to quickly relieve the pain caused by the injection. This is of great significance for reducing the patient's immediate pain and improving the comfort of treatment. However, most of the existing intramuscular injection pain-relieving patches have a fixed dosage. This means that no matter how the patient's pain level changes or how they respond to the drug, only the preset dosage of the tablet can be used, making it difficult to meet the personalized needs of all patients. Utility Model Content
[0004] The purpose of this invention is to address the problem that existing intramuscular injection analgesic patches have a fixed dosage of pills, which means that regardless of the patient's pain level or their response to the drug, only a preset dosage of pills can be used, making it difficult to meet the personalized needs of all patients. This invention provides an intramuscular injection analgesic patch.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pain relief patch for intramuscular injection, comprising: a patch base layer, an opening in the middle of the patch base layer, an annular groove at one end of the back of the patch base layer, a tablet support layer movably inserted into the inner ring of the annular groove, a vent hole inside the tablet support layer, a limiting ring at one end of the front of the tablet support layer, a retaining ring fixedly connected to the outer side of the tablet support layer, a tablet movably inserted into the inner side of the limiting ring, and a thin film fixedly connected to the lower outer end of the tablet.
[0006] As a further embodiment of this utility model: an auxiliary adhesive is fixedly connected to one end of the outer side of the patch base layer, the front side of the auxiliary adhesive is provided with adhesive, the surface of the adhesive is provided with release paper, and the other end of the back side of the patch base layer is fixedly connected with Velcro.
[0007] As a further improvement of this utility model: an annular adhesive is provided at one end of the front side of the patch base layer, and an annular release paper is provided on the surface of the annular adhesive.
[0008] As a further improvement of this utility model: a pull tab is fixedly connected to one end of the outer side of the retaining ring, and there are two sets of pull tabs, which are symmetrically arranged at both ends of the outer side of the retaining ring.
[0009] As a further improvement of this utility model: the annular groove is adapted to the retaining ring, and the retaining ring is engaged with the patch base layer.
[0010] As a further improvement of this utility model: the tablet support layer is made of polyester fiber material, and the retaining ring is made of silicone material.
[0011] As a further embodiment of this utility model: the auxiliary adhesive, the adhesive, the release paper, and the hook and loop fasteners are all provided in multiple sets, the multiple sets of auxiliary adhesive are symmetrically arranged at multiple ends on the outer side of the patch base layer, and the multiple sets of hook and loop fasteners are symmetrically arranged at multiple ends on the back side of the patch base layer.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model allows the herbal tablets to be placed within the limiting ring of the tablet support layer, then inserted through the opening from the back of the patch base layer. After the film covers the annular slot, it is fixed with a retaining ring. This modular design facilitates tablet replacement and allows the tablet thickness to be adjusted according to the patient's needs, improving therapeutic efficacy. The operation is simple, and users can easily insert, fix, and replace the tablets. The annular adhesive reduces direct pressure on the skin, improving comfort. Combined with the annular release paper, it is easy for users to peel off and stick the pain relief patch. The auxiliary adhesive and adhesive body can provide additional adhesive force when the annular adhesive fails. It can be easily replaced with Velcro and release paper, extending the service life and reducing usage costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the patch base layer in this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the hook and loop fastener in this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the Chinese medicine tablet of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the support layer for the Chinese medicine tablets of this utility model.
[0019] In the diagram: 1. Base layer of the patch; 2. Opening; 3. Annular slot; 4. Tablet support layer; 5. Ventilation hole; 6. Limiting ring; 7. Retaining ring; 8. Tablet; 9. Film; 10. Auxiliary adhesive; 11. Adhesive; 12. Release paper; 13. Velcro; 14. Annular adhesive; 15. Annular release paper; 16. Patch puller. Detailed Implementation
[0020] 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.
[0021] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will be described below based on its overall structure.
[0022] Reference Figures 1 to 5 In this embodiment of the present invention, a pain relief patch for intramuscular injection includes: a patch base layer 1, an opening 2 in the middle of the patch base layer 1, an annular groove 3 on one end of the back of the patch base layer 1, a tablet support layer 4 movably inserted into the inner circle of the annular groove 3, a vent hole 5 inside the tablet support layer 4, a limiting ring 6 on one end of the front of the tablet support layer 4, a retaining ring 7 fixedly connected to the outer side of the tablet support layer 4, a tablet 8 movably inserted into the inner side of the limiting ring 6, a thin film 9 fixedly connected to the lower outer end of the tablet 8, the annular groove 3 and the retaining ring 7 are adapted to each other, the retaining ring 7 is engaged with the patch base layer 1, the tablet support layer 4 is made of polyester fiber material, and the retaining ring 7 is made of silicone material.
[0023] The above scheme employs the following: the opening 2 in the middle of the patch base layer 1 is used for positioning and for penetrating the tablet support layer 4 and the tablet 8; the annular groove 3 on one side is used to engage the retaining ring 7, ensuring the stability of the tablet support layer 4; the ventilation holes 5 inside the tablet support layer 4 allow for ventilation during application; the limiting ring 6 on one side is used to fix the tablet 8 and prevent it from shifting; the choice of polyester fiber material provides good flexibility and durability, while ensuring that the tablet support layer 4 can conform to the skin and maintain the stable position of the tablet; the choice of silicone material for the retaining ring 7 provides good elasticity and resilience, allowing the retaining ring 7 to be tightly engaged in the annular groove 3 of the patch base layer 1, thereby fixing the tablet support layer 4; the tablet 8 is movably inserted into the tablet support layer 4 through the limiting ring 6, facilitating the replacement of tablets 8 of different thicknesses; the film 9 fixedly connected at the lower outer end is placed between the retaining ring 7 and the annular groove 3, thereby fixing the tablet 8.
[0024] Reference Figures 1 to 3 An auxiliary adhesive 10 is fixedly connected to one end of the outer side of the base layer 1. The front of the auxiliary adhesive 10 is provided with an adhesive 11 and a release paper 12 is provided on the surface of the adhesive 11. The other end of the back of the base layer 1 is fixedly connected with a hook and loop fastener 13. There are multiple sets of auxiliary adhesive 10, adhesive 11, release paper 12 and hook and loop fastener 13. Multiple sets of auxiliary adhesive 10 are symmetrically arranged at multiple ends on the outer side of the base layer 1, and multiple sets of hook and loop fastener 13 are symmetrically arranged at multiple ends on the back of the base layer 1.
[0025] The above solution employs an auxiliary adhesive 10 fixedly connected to one end of the outer side of the base layer 1, providing additional fixing points and increasing the adhesion between the pain relief patch and the skin. The adhesive 11 on the front side of the auxiliary adhesive 10 ensures that it can be firmly adhered to the skin. The release paper 12 covering the surface of the adhesive 11 protects the adhesive from contamination before the pain relief patch is used and can be easily peeled off when in use. The design of the Velcro 13 fixedly connected to the other end of the back side of the base layer 1 is to allow the auxiliary adhesive 10 to be flipped to the back side of the base layer 1 when it is not needed, and then fixed by the Velcro 13. This avoids the discomfort caused by the auxiliary adhesive 10 being directly adhered to the skin and ensures the overall stability and fixation of the pain relief patch.
[0026] Reference Figure 1 , Figure 2 and Figure 4 One end of the front side of the patch base layer 1 is provided with an annular adhesive 14, and an annular release paper 15 is provided on the surface of the annular adhesive 14. One end of the outer side of the retaining ring 7 is fixedly connected with a pull tab 16. There are two sets of pull tabs 16, which are symmetrically arranged at both ends of the outer side of the retaining ring 7.
[0027] The above scheme is adopted: the annular adhesive 14 is located at one end of the front side of the patch base layer 1, which is used to firmly stick the pain relief patch to the skin. Its annular design helps to reduce direct pressure on the central area of the skin while maintaining sufficient adhesion, thus improving the comfort of use. The annular release paper 15 covers the surface of the annular adhesive 14 and plays a protective role. Before the pain relief patch is used, the release paper can prevent the adhesive from being contaminated or losing its stickiness. The pull tab 16 is fixedly connected to one end of the outer side of the retaining ring 7 to assist the user in pulling down the retaining ring 7.
[0028] The working principle of this utility model is as follows: In use, the tablet 8 is placed inside the limiting ring 6 of the tablet support layer 4, and then the tablet support layer 4 is inserted into the through-hole 2 from the back of the patch base layer 1. At this time, the thin film 9 on the outside of the tablet 8 covers the annular groove 3. Then, the retaining ring 7 presses the thin film 9 into the annular groove 3, thus fixing the tablet support layer 4 and the tablet 8. This modular approach not only facilitates the replacement of the tablet 8 but also allows for the replacement of tablets 8 of different thicknesses according to the different pain levels and needs of different patients. This personalized adjustment capability allows the pain relief patch to better adapt to the needs of different patients, improving the treatment effect. Through simple operation, users can easily insert, fix, and replace the tablet support layer 4 and the tablet 8. This convenience allows patients to... Using the pain relief patch is easier and more comfortable, reducing operational difficulties and inconveniences. The design of the ring-shaped adhesive 14 reduces direct pressure on the central area of the skin, contributing to improved comfort. The design of the ring-shaped adhesive 14 and the ring-shaped release paper 15 allows users to easily peel off the release paper and stick the pain relief patch to the skin without worrying about the adhesive sticking to their fingers. The auxiliary adhesive 10 and the adhesive 11 can separate the auxiliary adhesive 10 from the Velcro 13 when the ring-shaped adhesive 14 becomes less sticky due to sweat or oil, and then flip and peel off the release paper 12 to stick it to the skin. This design extends the lifespan of the pain relief patch, eliminating the need for frequent replacements due to adhesive failure, thus reducing usage costs.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A pain-relieving patch for intramuscular injection, characterized in that, include: A patch base layer (1) is provided with an opening (2) in the middle of the patch base layer (1). An annular groove (3) is provided at one end of the back of the patch base layer (1). A tablet support layer (4) is movably inserted into the inner ring of the annular groove (3). A vent hole (5) is provided inside the tablet support layer (4). A limiting ring (6) is provided at one end of the front of the tablet support layer (4). A retaining ring (7) is fixedly connected to the outside of the tablet support layer (4). A tablet (8) is movably inserted into the inner side of the limiting ring (6). A film (9) is fixedly connected to the lower outer side of the tablet (8).
2. The analgesic patch for intramuscular injection according to claim 1, characterized in that, An auxiliary adhesive (10) is fixedly connected to one end of the outer side of the patch base layer (1). The auxiliary adhesive (10) has an adhesive (11) on its front side and a release paper (12) on its surface. A Velcro (13) is fixedly connected to the other end of the back side of the patch base layer (1).
3. The analgesic patch for intramuscular injection according to claim 1, characterized in that, The patch base layer (1) has an annular adhesive (14) on one end of its front side, and an annular release paper (15) is provided on the surface of the annular adhesive (14).
4. The analgesic patch for intramuscular injection according to claim 1, characterized in that, A pull tab (16) is fixedly connected to one end of the outer side of the retaining ring (7). There are two sets of pull tabs (16), which are symmetrically arranged at both ends of the outer side of the retaining ring (7).
5. The analgesic patch for intramuscular injection according to claim 1, characterized in that, The annular slot (3) is adapted to the retaining ring (7), and the retaining ring (7) is engaged with the patch base layer (1).
6. The analgesic patch for intramuscular injection according to claim 1, characterized in that, The tablet support layer (4) is made of polyester fiber material, and the retaining ring (7) is made of silicone material.
7. The analgesic patch for intramuscular injection according to claim 2, characterized in that, The auxiliary adhesive (10), the adhesive (11), the release paper (12), and the hook and loop fastener (13) are all provided in multiple sets. The multiple sets of auxiliary adhesive (10) are symmetrically arranged at multiple ends on the outside of the patch base layer (1), and the multiple sets of hook and loop fastener (13) are symmetrically arranged at multiple ends on the back of the patch base layer (1).