Post-injection hemostatic patch

By incorporating a foamed silicone pad and a cotton layer on the hemostatic patch, combined with a breathable design, the problem of insufficient pressure after injection is solved, achieving automatic hemostasis and comfortable use.

CN224056182UActive Publication Date: 2026-03-31PEI HONG DIAN ZI SHEN ZHEN YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing hemostatic patches lack sufficient pressure after injection, requiring medical staff to manually press the injection site, which is inconvenient.

Method used

A post-injection hemostatic patch was designed, which uses a foamed silicone pad and a hemostatic cotton layer, combined with a breathable hole design, and is soft, elastic and breathable. It can automatically press the injection needle hole and contains hemostatic agents to accelerate hemostasis.

Benefits of technology

It achieves automatic pressing of the injection needle hole, improves hemostasis efficiency, is convenient and quick to use, comfortable, and reduces the need for manual pressing.

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Abstract

The utility model discloses a post-injection hemostasis patch which comprises a back base layer, a silica gel pad and two isolating membranes, the back base layer is provided with two bonding ends, the end edges of the bonding ends are arranged in an arc shape, the back base layer is provided with a glue face, and glue is coated on the glue face; the silica gel pad is connected to the middle part of the rubber surface and is made of a foaming silica gel material; and the two isolating membranes are respectively adhered to the two adhering ends of the rubber surface and at least completely cover the silica gel pad. According to the technical scheme, compression force can be generated on a wound, rapid hemostasis is facilitated, and meanwhile use is convenient and rapid, and carrying is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of hemostatic patch technology, and in particular to a hemostatic patch for post-injection use. Background Technology

[0002] A band-aid is a common infusion, nursing, and protective device used to treat traumatic bleeding. The main components of a band-aid are a layer of absorbent gauze or sponge and a layer of adhesive. The gauze or sponge quickly absorbs blood, preventing further bleeding, while the adhesive firmly adheres to the wound, preventing the band-aid from falling off. During injections, after the needle is withdrawn, some pressure needs to be applied to the injection site to stop the bleeding. Current band-aids lack sufficient pressure at the injection site, so healthcare professionals usually have patients apply pressure with cotton swabs, which is inconvenient. Utility Model Content

[0003] The main purpose of this invention is to provide a post-injection hemostatic patch that can apply pressure to the wound to help stop bleeding quickly, while being convenient, quick to use, and easy to carry.

[0004] To achieve the above objectives, this utility model proposes a post-injection hemostatic patch, characterized in that it comprises:

[0005] The backing base layer has two adhesive ends, the edge of the adhesive ends is arc-shaped, and the backing base layer has an adhesive surface coated with adhesive.

[0006] A silicone pad, which is connected to the middle of the adhesive surface, and the silicone pad is made of foamed silicone material;

[0007] Two release films are respectively bonded to the two adhesive ends of the adhesive surface, and the two release films at least completely cover the silicone pad.

[0008] In one embodiment of this utility model, the surface of the silicone pad is covered with a layer of hemostatic cotton.

[0009] In one embodiment of this utility model, the hemostatic cotton layer absorbs a hemostatic agent.

[0010] In one embodiment of this utility model, the surface of the backing layer is provided with ventilation holes.

[0011] This invention utilizes foamed silicone in a bandage, which provides softness, elasticity, and breathability, enhancing comfort and promoting hemostasis. The expanding silicone foam presses against the injection site, aiding in hemostasis at the injection puncture site. Furthermore, the bandage's design, resembling a traditional Chinese adhesive bandage, makes it easy to carry and apply, thus improving the user experience. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Explanation of icon numbers:

[0016] 1. Backing layer; 11. Adhesive end; 12. Adhesive surface; 13. Ventilation hole; 2. Silicone pad; 21. Hemostatic cotton layer; 3. Isolation film.

[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0019] Reference Figures 1 to 2 This utility model proposes a post-injection hemostatic patch, including a backing layer 1, a silicone pad 2, and two release films 3. The backing layer 1 has two adhesive ends 11, the edges of which are arc-shaped. The backing layer 1 has an adhesive surface 12 coated with adhesive. The silicone pad 2 is connected to the middle of the adhesive surface 12 and is made of foamed silicone. The two release films 3 are respectively bonded to the two adhesive ends 11 of the adhesive surface 12, and the two release films 3 at least completely cover the silicone pad 2.

[0020] Understandably, the backing layer 1 is the bottom layer structure of the bandage. The adhesive surface 12 of the backing layer 1 is coated with adhesive material, such as medical hot melt adhesive or acrylic adhesive, which allows the adhesive surface 12 to adhere firmly to the skin, ensuring that the bandage will not easily fall off and serving to fix the position of the silicone pad 2. The backing layer 1 has two extended adhesive ends 11, and the edges of the two adhesive ends 11 are curved, like a band-aid, providing better fit. On the one hand, it is easier for the fingers to apply the adhesive ends 11 to the skin, and on the other hand, it allows the bandage to better adapt to the curves of the skin, improving wearing comfort.

[0021] The silicone pad 2 is located in the center of the bandage. In this example, it is made of foamed silicone. This is achieved by adding a foaming agent, such as sodium bicarbonate, to silicone rubber. The foaming agent decomposes at high temperatures to generate gas, thus forming a uniformly distributed bubble structure. Alternatively, the silicone rubber can be directly mixed with gas, and the gas is dispersed within the silicone rubber through external force, subsequently curing to form a foam structure. This material possesses a certain degree of softness, elasticity, and breathability, which helps improve comfort and promote hemostasis. Because the foamed silicone expands and presses against the injection site, it aids in hemostasis at the injection puncture site.

[0022] The two release films 3 are thin films covering the bandage. Before the bandage is used, they adhere to the two adhesive ends 11 of the backing layer 1. The function of these films is to protect the adhesive surface 12 from contamination when the bandage is not in use and to prevent the adhesive ends 11 from directly contacting the skin or other objects before use. The two release films 3 completely cover the silicone pad 2, ensuring that the silicone pad 2 is not damaged or contaminated before use.

[0023] Reference Figures 1 to 2 In one embodiment of this application, the surface of the silicone pad 2 is covered with a hemostatic cotton layer 21.

[0024] Understandably, a layer of hemostatic cotton 21 is applied to the surface of the silicone pad 2. Hemostatic cotton is a material specifically designed to aid in hemostasis, possessing excellent absorbency and antibacterial properties. It effectively absorbs blood and helps accelerate the hemostasis process of the wound. Adding the hemostatic cotton layer 21 aids wound healing by absorbing bleeding and creating pressure in the wound area, thereby promoting blood clotting and achieving hemostasis.

[0025] Reference Figures 1 to 2 In one embodiment of this application, the hemostatic cotton layer 21 absorbs a hemostatic agent.

[0026] Understandably, hemostatic agents are medications used to accelerate blood clotting and help stop bleeding. Common hemostatic agents include clotting factors, antithrombin, and hemostatic powder. These medications can promote blood clotting at the wound site or accelerate platelet aggregation, thereby helping to stop bleeding. The hemostatic cotton layer 21 has already absorbed or been coated with hemostatic agents during the manufacturing process, giving it not only the absorbent function of ordinary hemostatic cotton but also the ability to accelerate blood clotting through the action of the medication. When the hemostatic patch comes into contact with the wound, the hemostatic agent is released onto the wound, quickly exerting its effect and further enhancing the hemostatic effect. In addition, disinfectant can be used in conjunction to prevent the wound from becoming infected by bacteria.

[0027] Reference Figures 1 to 2 In one embodiment of this application, the surface of the backing layer 1 is provided with ventilation holes 13.

[0028] Understandably, in the structure of a bandage, the backing layer 1 is the part that directly contacts the skin. It is made of soft, comfortable material to provide a comfortable wearing experience and ensure good skin contact, avoiding allergies or discomfort. Its surface typically needs to be designed to be soft and breathable to prevent a stuffy or hot feeling during prolonged use, especially important during wound care where keeping the skin dry is crucial. Therefore, the design of the ventilation holes 13 helps prevent a suffocating effect when the bandage is applied to the skin, allowing the skin to breathe. This prevents eczema, infection, or other skin problems caused by lack of breathability due to prolonged skin coverage.

[0029] This utility model's technical solution utilizes foamed silicone on a hemostatic patch, which possesses a certain degree of softness, elasticity, and breathability, thus improving comfort and promoting the hemostasis process. As the foamed silicone expands and presses against the injection site, it helps to stop bleeding at the injection puncture site. At the same time, the hemostatic patch is designed in the style of an adhesive bandage, making it easy to carry and apply, thereby enhancing the user experience.

[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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 application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An injection site hemostatic patch, characterized in that, Include: Back base layer (1), the back base layer (1) has two adhesive ends (11), the end edge of the adhesive end (11) is arc-shaped, the back base layer (1) has a glue surface (12), the glue surface (12) is coated with glue; Silica gel pad (2), the silica gel pad (2) is connected to the middle part of the glue surface (12), and the silica gel pad (2) is foamed silica gel material; Two isolation films (3), two isolation films (3) are adhered to two adhesive ends (11) of the glue surface (12), and two isolation films (3) at least cover the silica gel pad (2) completely.

2. The post-injection hemostatic patch according to claim 1, wherein, The surface of the silica gel pad (2) is covered with a hemostatic cotton layer (21).

3. The post-injection hemostatic patch of claim 2, wherein, The hemostatic cotton layer (21) absorbs hemostatic agents.

4. The post-injection hemostatic patch of claim 3, wherein, The surface of the back base layer (1) is provided with air holes (13).