Medical hydrogel wound application
By designing multi-layer structure medical hydrogel trauma patches, including protective film, hydrogel layer, polymer gel layer, microporous membrane layer, absorption layer and drug layer, the problem that existing patches cannot stop bleeding and reduce swelling at the same time is solved, and higher practicality and convenience of patches are achieved.
Patent Information
- Application Number
- CN202420630342.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Existing medical patches cannot simultaneously prevent bleeding and swelling of wounds, resulting in a decrease in practicality of patches.
A medical hydrogel trauma patch is designed, including a protective film, a hydrogel layer, a polymer gel layer, a microporous membrane layer, an absorption layer and a drug layer. The combination of these layers is used to achieve hemostasis and swelling reduction effects.
This application not only effectively stops bleeding, but also reduces swelling and dissipates heat in the surrounding tissues, improves the practicality of application, and facilitates the tearing of application, making it more convenient and practical to use.
Smart Images

Figure CN222885395U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical dressings, in particular to a medical hydrogel wound dressing. Background Art
[0002] Medical hydrogel wound dressings are common medical supplies used to treat various types of wounds, including abrasions, burns, cuts, scalds, etc. These dressings usually consist of a breathable backing material, an intermediate layer containing hydrogel, and a covering protective film.
[0003] After retrieval, the Chinese patent publication number: CN215080873U discloses a dressing that can fit the wound three-dimensionally, which can be efficiently attached to and effectively protect the wound, stop bleeding quickly, prevent scarring, and promote wound recovery. Based on the above characteristics, the dressing provided by this utility model is particularly suitable for the care of maxillofacial wounds. In addition, this dressing can also meet the needs of special injuries such as soft tissue trauma in ice and snow sports, and has broad application prospects. However, the above-mentioned utility model cannot solve the problem of both stopping bleeding and reducing swelling for wound treatment, thus reducing the practicability of the dressing. Therefore, a medical hydrogel wound dressing is proposed to solve the above problems. Summary of the Utility Model
[0004] The purpose of the present utility model is to propose a medical hydrogel wound dressing to solve the drawback in the prior art that it cannot achieve both stopping bleeding and reducing swelling for wound treatment.
[0005] To achieve the above purpose, the present utility model adopts the following technical solution: A medical hydrogel wound dressing includes a protective film, a hydrogel layer is arranged on the upper side of the protective film, a repair component is arranged on the upper side of the hydrogel layer, an absorption layer is arranged on the upper side of the repair component, and a drug layer is arranged on the upper side of the absorption layer.
[0006] As a further description of the above technical solution:
[0007] The repair component includes a polymer gel layer, the polymer gel layer is arranged on the upper side of the hydrogel layer, and a microporous membrane layer is arranged on the upper side of the polymer gel layer.
[0008] As a further description of the above technical solution:
[0009] An adhesive layer is arranged on the lower side of the protective film, and a protection component is arranged on the lower side of the adhesive layer.
[0010] As a further description of the above technical solution:
[0011] The protection component includes a breathable layer, the breathable layer is arranged on the lower side of the adhesive layer, and a transparent waterproof outer film is arranged on the lower side of the breathable layer.
[0012] As a further description of the above technical solution:
[0013] An absorption layer is provided on the upper side of the microporous membrane layer.
[0014] As a further description of the above technical solution:
[0015] The absorption layer is made of sponge material.
[0016] As a further description of the above technical solution:
[0017] The thickness of the glue coating layer is 0.2 - 3 mm.
[0018] As a further description of the above technical solution:
[0019] The transparent waterproof outer membrane is an extremely thin and soft transparent bionic membrane made of PU polyurethane material.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, through the combined use of structures such as the protective film, hydrogel layer, polymer gel layer, microporous membrane layer, absorption layer, and drug layer, it realizes the functions of facilitating wound hemostasis and reducing swelling and dissipating heat of the surrounding tissues, improving the practicality of the dressing.
[0022] 2. In the utility model, through the combined use of structures such as the transparent waterproof outer membrane, breathable layer, and glue coating layer, it realizes the improvement of the breathability of the wound dressing, and at the same time facilitates the removal of the dressing from the affected area, making the dressing more convenient and practical to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a three-dimensional view of the medical hydrogel wound dressing proposed by the utility model;
[0024] Figure 2 is a top view of the medical hydrogel wound dressing proposed by the utility model;
[0025] Figure 3 is a schematic diagram of the disassembled structure of the medical hydrogel wound dressing proposed by the utility model.
[0026] LEGEND DESCRIPTION:
[0027] 1. Transparent waterproof outer membrane; 2. Breathable layer; 3. Glue coating layer; 4. Protective film; 5. Hydrogel layer; 6. Polymer gel layer; 7. Microporous membrane layer; 8. Absorption layer; 9. Drug layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0029] Referring to Figure 1 , Figure 2 , Figure 3 , an embodiment provided by the present invention: a medical hydrogel wound dressing, including a protective film 4, a hydrogel layer 5 is arranged on the upper side of the protective film 4, a repair component is arranged on the upper side of the hydrogel layer 5, an absorption layer 8 is arranged on the upper side of the repair component, and a drug layer 9 is arranged on the upper side of the absorption layer 8; the repair component includes a polymer gel layer 6, the polymer gel layer 6 is arranged on the upper side of the hydrogel layer 5, and a microporous membrane layer 7 is arranged on the upper side of the polymer gel layer 6.
[0030] By setting the protective film 4 to be made of PET film, the physical antipyretic function is improved by setting the hydrogel layer 5 and the polymer gel layer 6. By setting the thickness of the microporous membrane layer 7 to be 0.01 - 1 mm, the breathability of the present invention is improved. By setting the absorption layer 8 to be made of sponge material, the absorption layer 8 is given a strong absorption capacity. By setting the drug layer 9 to be composed of alginate calcium salt or hydrocolloid hemostatic function, it plays the role of facilitating wound hemostasis and reducing swelling and dissipating heat of the surrounding tissues at the same time.
[0031] Referring to Figure 1 , Figure 2 , Figure 3 , a glue layer 3 is arranged on the lower side of the protective film 4, and a protective component is arranged on the lower side of the glue layer 3; the protective component includes a breathable layer 2, the breathable layer 2 is arranged on the lower side of the glue layer 3, and a transparent waterproof outer film 1 is arranged on the lower side of the breathable layer 2.
[0032] By setting the transparent waterproof outer film 1 to be an extremely thin and soft transparent bionic film made of PU polyurethane material, the breathability of the dressing is improved. By setting the breathable layer 2 to be made of non-woven fabric material, and by setting the glue layer 3, while ensuring the normal use of the dressing, the adhesion between the dressing and the skin is reduced, which plays the role of improving the breathability of the wound dressing and facilitating the removal of the dressing from the affected area at the same time.
[0033] Referring to Figure 1 , Figure 2 , Figure 3 , an absorption layer 8 is arranged on the upper side of the microporous membrane layer 7; the absorption layer 8 is made of sponge material; the thickness of the glue layer 3 is 0.2 - 3 mm; the transparent waterproof outer film 1 is an extremely thin and soft transparent bionic film made of PU polyurethane material.
[0034] An absorption layer 8 is provided on the upper side of the microporous membrane layer 7, which plays a role in improving the absorption capacity of the absorption layer 8 and having a high absorption ratio; since the absorption layer 8 is made of sponge material, it plays a role in improving the absorption capacity of the absorption layer 8 and having a high absorption ratio; since the thickness of the adhesive layer 3 is 0.2 - 3 mm, it plays a role in preventing skin damage caused by peeling off the dressing and facilitating peeling; since the transparent waterproof outer membrane 1 is an extremely thin and soft transparent bionic membrane made of PU polyurethane material, it plays a role in improving the air permeability of the dressing.
[0035] Working principle: When using the present utility model, through the provided transparent waterproof outer membrane 1, which is an extremely thin and soft transparent bionic membrane made of PU polyurethane material, ventilation is carried out through the original ventilation holes of the extremely thin and soft highly moisture-permeable transparent bionic membrane, improving the air permeability of the dressing. Through the provided ventilation layer 2, the material of the ventilation layer 2 is non-woven fabric material, which is required to be air-permeable but water-impermeable. Through the provided adhesive layer 3, while ensuring the normal use of the dressing, the adhesion between the dressing and the skin is reduced, preventing skin damage caused by peeling off the dressing and facilitating peeling, achieving the improvement of the air permeability of the wound dressing, and at the same time facilitating the dressing to be torn off from the affected area, making the dressing more convenient and practical to use. Through the provided protective film 4, the material of the protective film 4 is PET film. Through the provided hydrogel layer 5 and polymer gel layer 6, the physical antipyretic function of the present utility model is improved. Through the provided microporous membrane layer 7, the thickness of the microporous membrane layer 7 is 0.01 - 1 mm, and the water vapor transmission rate is 500 g / m2 / 24h - 2000 g / 2m / 24h, improving the air permeability of the present utility model. Through the provided absorption layer 8, the absorption layer 8 is made of sponge material, endowing the absorption layer 8 with a strong absorption capacity, a high absorption ratio, and a wider adaptability. Through the provided drug layer 9, the drug layer 9 is composed of calcium alginate salt or hydrocolloid hemostatic function, realizing the function of facilitating wound hemostasis while reducing swelling and dissipating heat of the surrounding tissues, and improving the practicality of the dressing.
[0036] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A medical hydrogel wound dressing, comprising a protective film (4), characterized in that: A hydrogel layer (5) is arranged on the upper side of the protective film (4), a repair component is arranged on the upper side of the hydrogel layer (5), an absorption layer (8) is arranged on the upper side of the repair component, a drug layer (9) is arranged on the upper side of the absorption layer (8), and the repair component includes a polymer gel layer (6), the polymer gel layer (6) is arranged on the upper side of the hydrogel layer (5), and a microporous membrane layer (7) is arranged on the upper side of the polymer gel layer (6).
2. The medical hydrogel wound dressing according to claim 1, characterized in that: A rubber coating layer (3) is provided on the lower side of the protective film (4), and a protective component is provided on the lower side of the rubber coating layer (3).
3. The medical hydrogel wound dressing according to claim 2, characterized in that: The protective component comprises a breathable layer (2), wherein the breathable layer (2) is arranged on the lower side of the rubber coating layer (3), and a transparent waterproof outer film (1) is arranged on the lower side of the breathable layer (2).
4. The medical hydrogel wound dressing according to claim 1, characterized in that: An absorption layer (8) is arranged on the upper side of the microporous membrane layer (7).
5. The medical hydrogel wound dressing according to claim 1, characterized in that: The absorption layer (8) is made of sponge material.
6. The medical hydrogel wound dressing according to claim 2, characterized in that: The thickness of the rubber coating layer (3) is 0.2-3 mm.
7. The medical hydrogel wound dressing according to claim 3, characterized in that: The transparent waterproof outer film (1) is an extremely thin and soft transparent bionic film made of PU polyurethane material.
Citation Information
Patent Citations
Plaster for three-dimensionally fitting wound surface
CN215080873U