Hydrogel patch
By introducing a fixation mechanism and a replacement mechanism into the hydrogel dressing, the problems of wrinkles and displacement caused by the decrease in adhesiveness during the use of the hydrogel dressing are solved, achieving a close fit and replaceability, avoiding secondary contamination of the wound and saving costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2026-04-14
AI Technical Summary
Existing hydrogel dressings are prone to wrinkling or displacement during use due to reduced adhesion, which may allow external water to enter the wound and cause secondary contamination.
A hydrogel dressing was designed, comprising a fixing mechanism and a replacement mechanism. The fixing mechanism achieves a tight fit through elastic bands and Velcro to prevent water from entering. The replacement mechanism allows the hydrogel layer to be replaced independently, avoiding the need to replace the dressing body multiple times.
It effectively prevents external water from entering the wound, reduces secondary contamination, improves adhesion, and saves costs.
Smart Images
Figure CN224112889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dressing technology, specifically to a hydrogel dressing. Background Technology
[0002] Hydrogel dressings are a new type of wound dressing that has been developed in recent years. Hydrogels are a type of functional polymer material with strong hydrophilic groups inside, which gives them a special adsorption effect on water. Through intermolecular cross-linking, they form a network structure. Compared with traditional dressings, hydrogels can promote better wound healing, reduce patient pain, improve the wound microenvironment, and inhibit bacterial growth, making them very effective for treating burns.
[0003] Existing hydrogel dressings require the removal of the release liner during use. However, after removing the release liner, the dressing needs to be applied to the wound surface. When the hand comes into contact with the dressing after the release liner is removed, the adhesiveness of the dressing is easily reduced. If it is applied to frequently bent areas such as elbows or knees, the dressing is prone to wrinkling or shifting, allowing unclean water from the outside to enter the dressing and cause secondary contamination of the wound. Therefore, an improved hydrogel dressing is needed to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a hydrogel dressing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydrogel patch, comprising a patch body, wherein a fixing mechanism is provided at the top of the patch body and a replacement mechanism is provided at the bottom of the patch body.
[0006] Preferably, the fixing mechanism includes an elastic band, which is fixedly installed on the top of the dressing body. A Velcro A side is fixedly installed on the left side of the elastic band, and a Velcro B side is fixedly installed on the right side of the elastic band. A fixing block is fixedly installed on the top of the elastic band to prevent external water from entering the dressing body, avoid infection of the wound by unclean water sources, and prevent secondary damage to the wound. It also ensures that the hydrogel layer body adheres tightly to the wound, resulting in better wound treatment.
[0007] Preferably, the elastic band, Velcro A side, and Velcro B side are provided in two sets, and are symmetrically distributed vertically around the top center line of the dressing body. By binding them in parallel, the dressing body can be fully bound, and the elasticity of the elastic band can be used to make the waterproof rubber ring fit tightly against the wound.
[0008] Preferably, the hook and loop fastener A and hook and loop fastener B face opposite directions, so that after the elastic band is wrapped around the arm or leg, the hook and loop fastener A and hook and loop fastener B are adhered together.
[0009] Preferably, the replacement mechanism includes a waterproof and breathable layer, which is fixedly installed at the bottom of the patch body. A backing layer is fixedly installed at the bottom of the waterproof and breathable layer, and a water-resistant rubber ring is fixedly installed at the bottom of the waterproof and breathable layer. A hydrogel layer body is disposed inside the water-resistant rubber ring. An adhesive ring one is fixedly installed at the top of the hydrogel layer body, and an adhesive ring two is fixedly installed at the bottom of the hydrogel layer body. A plastic sticker is disposed at the bottom of the hydrogel layer body. The hydrogel layer body is independent of the patch body and can be removed and replaced after one use, eliminating the need for multiple replacements of the patch body and saving costs.
[0010] Preferably, the waterproof and breathable layer is made of PP spunbond nonwoven fabric, PE polymer breathable membrane and PP spunbond nonwoven fabric, which ensures the breathability of the device.
[0011] Preferably, the adhesive rings one and two on the upper and lower sides of the hydrogel layer body are both adhered to the plastic sticker, so that the hydrogel layer body can be removed and replaced.
[0012] Compared with the prior art, the present invention provides a hydrogel dressing with the following beneficial effects:
[0013] 1. This hydrogel dressing, through its fixed mechanism, prevents adhesive parts from sticking together during application. This ensures the dressing remains wrinkle-free and enhances adhesion. The parallel binding method allows for complete securing of the dressing. The elastic band ensures a tight seal between the waterproof rubber ring and the wound, preventing water from entering and contaminating the wound, thus avoiding secondary damage. This close fit between the hydrogel layer and the wound results in better wound treatment.
[0014] 2. This hydrogel dressing, through its designed replacement mechanism, allows the adhesive end of the hydrogel layer to be placed inside the waterproof rubber ring during use, adhering to the backing layer and fixing the hydrogel layer. The hydrogel layer is independent of the dressing itself, and can be removed and replaced after one use, eliminating the need for multiple replacements of the dressing itself and saving costs. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.
[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0017] Figure 2 This is an exploded structural diagram of the present invention;
[0018] Figure 3 This is a schematic diagram of the external structure of the fixing mechanism of this utility model;
[0019] Figure 4 This is an exploded view of the replacement mechanism of this utility model.
[0020] In the diagram: 1. Adhesive body; 2. Fixing mechanism; 21. Elastic band; 22. Hook and loop fastener A side; 23. Hook and loop fastener B side; 24. Fixing block; 3. Replacement mechanism; 31. Waterproof and breathable layer; 32. Backing layer; 33. Waterproof rubber ring; 34. Adhesive ring one; 35. Hydrogel layer body; 36. Adhesive ring two; 37. Plastic sticker. Detailed Implementation
[0021] 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.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1
[0023] Please see Figure 1-4 This utility model provides a technical solution: a hydrogel patch, including a patch body 1, a fixing mechanism 2 provided on the top of the patch body 1, and a replacement mechanism 3 provided on the bottom of the patch body 1.
[0024] Furthermore, the fixing mechanism 2 includes an elastic band 21, which is fixedly installed on the top of the dressing body 1. A Velcro A side 22 is fixedly installed on the left side of the elastic band 21, and a Velcro B side 23 is fixedly installed on the right side of the elastic band 21. A fixing block 24 is fixedly installed on the top of the elastic band 21 to prevent external water from entering the dressing body 1, avoid infection of the wound by unclean water sources, and prevent secondary damage to the wound. It also ensures that the hydrogel layer body 35 fits tightly with the wound, resulting in better wound treatment.
[0025] Furthermore, there are two sets of elastic band 21, Velcro A side 22 and Velcro B side 23, which are symmetrically distributed at the top center line of the dressing body 1. By binding them in parallel, the dressing body 1 can be fully bound. The elasticity of the elastic band 21 makes the waterproof rubber ring 33 fit tightly to the wound.
[0026] Furthermore, with the hook and loop fastener A side 22 and hook and loop fastener B side 23 facing opposite directions, the elastic band 21 is wrapped around the arm or leg, and then the hook and loop fastener A side 22 and hook and loop fastener B side 23 are adhered together. Example 2
[0027] Please see Figure 4 Furthermore, in conjunction with Embodiment 1, the replacement mechanism 3 includes a waterproof and breathable layer 31, which is fixedly installed at the bottom of the dressing body 1. A backing layer 32 is fixedly installed at the bottom of the waterproof and breathable layer 31, and a water-resistant rubber ring 33 is fixedly installed at the bottom of the waterproof and breathable layer 31. A hydrogel layer body 35 is disposed inside the water-resistant rubber ring 33. An adhesive ring 1 34 is fixedly installed at the top of the hydrogel layer body 35, and an adhesive ring 2 36 is fixedly installed at the bottom of the hydrogel layer body 35. A plastic sticker 37 is disposed at the bottom of the hydrogel layer body 35. The hydrogel layer body 35 is independent of the dressing body 1 and can be removed and replaced after one use, eliminating the need for multiple replacements of the dressing body 1 and saving costs.
[0028] Furthermore, the waterproof and breathable layer 31 is made of PP spunbond nonwoven fabric, PE polymer breathable membrane and PP spunbond nonwoven fabric, which ensures the breathability of the device.
[0029] Furthermore, the adhesive rings 34 and 36 on the upper and lower sides of the hydrogel layer body 35 are both adhered to the plastic sticker 37, so that the hydrogel layer body 35 can be removed and replaced.
[0030] In actual operation, when using this device, peel off any one layer of the plastic stickers 37 on the top and bottom sides of the hydrogel layer 35. Holding the side with the plastic stickers 37, place the adhesive end inside the waterproof rubber ring 33 to adhere it to the backing layer 32, thus fixing the hydrogel layer 35. Then, peel off the plastic stickers 37 from the curved positions on both sides of the waterproof and breathable layer 31. Avoid touching the adhesive parts of the hydrogel layer 35 with your hand, thus preventing the adhesiveness from decreasing. Hold the fixing block 24 and apply the hydrogel layer 35 to the wound. Under the action of the fixing block 24, the hydrogel layer 35 will adhere securely. When applying the dressing, the adhesive parts will not stick together, ensuring that the dressing body 1 will not wrinkle during application, thus increasing the adhesion effect. After application, the elastic band 21 can be pulled to wrap around the arm or leg, thus attaching the Velcro A side 22 and the Velcro B side 23 together. By binding in parallel, the dressing body 1 can be fully bound. The elasticity of the elastic band 21 makes the waterproof rubber ring 33 fit tightly against the wound, preventing external water from entering the dressing body 1 and avoiding infection of the wound by unclean water sources, which could cause secondary damage. It also makes the hydrogel layer body 35 fit tightly against the wound, resulting in better wound treatment.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A hydrogel dressing, comprising a dressing body (1), characterized in that: The top of the dressing body (1) is provided with a fixing mechanism (2), and the bottom of the dressing body (1) is provided with a replacement mechanism (3). The fixing mechanism (2) includes an elastic band (21), which is fixedly installed on the top of the dressing body (1). A hook and loop fastener A side (22) is fixedly installed on the left side of the elastic band (21), a hook and loop fastener B side (23) is fixedly installed on the right side of the elastic band (21), and a fixing block (24) is fixedly installed on the top of the elastic band (21).
2. The hydrogel dressing according to claim 1, characterized in that: The elastic band (21), hook and loop A side (22) and hook and loop B side (23) are provided in two sets and are symmetrically distributed at the top center line of the adhesive body (1).
3. The hydrogel dressing according to claim 1, characterized in that: The hook and loop fastener A side (22) and hook and loop fastener B side (23) face opposite directions.
4. The hydrogel dressing according to claim 1, characterized in that: The replacement mechanism (3) includes a waterproof and breathable layer (31), which is fixedly installed at the bottom of the dressing body (1). A backing layer (32) is fixedly installed at the bottom of the waterproof and breathable layer (31). A water-proof rubber ring (33) is fixedly installed at the bottom of the waterproof and breathable layer (31). A hydrogel layer body (35) is provided inside the water-proof rubber ring (33). An adhesive ring one (34) is fixedly installed at the top of the hydrogel layer body (35). An adhesive ring two (36) is fixedly installed at the bottom of the hydrogel layer body (35). A plastic sticker (37) is provided at the bottom of the hydrogel layer body (35).
5. A hydrogel dressing according to claim 4, characterized in that: The waterproof and breathable layer (31) is made of PP spunbond nonwoven fabric, PE polymer breathable membrane and PP spunbond nonwoven fabric.
6. A hydrogel dressing according to claim 4, characterized in that: The adhesive rings 1 (34) and 2 (36) on the upper and lower sides of the hydrogel layer body (35) are both adhered to the plastic sticker (37).