Alginate dressing
By designing an alginate dressing, the problem of unstable fixation of traditional dressings is solved by using elastic bandages and non-woven fabric structures, which improves the fixation effect and comfort of the dressing, and promotes wound healing by absorbing exudate and keeping the wound moist.
Patent Information
- Application Number
- CN202422522197.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Traditional dressings are prone to tape edge detachment after friction, causing the dressing to fall off and affecting comfort and fixation.
An alginate dressing was designed, using alginate nonwoven fabric and alginate hydrogel as the main components. It combines a closure layer and a backing layer. An elastic bandage and an adhesive layer are placed between the closure layers. The elastic bandage is used to wrap around the wound to fix it, preventing the bandage edges from lifting. There is no adhesive at the contact point between the bandage and the skin, which improves comfort.
It effectively prevents the bandage edges from lifting and falling off, improves the fixation effect and comfort of the dressing, while the alginate nonwoven fabric absorbs exudate and the calcium alginate hydrogel keeps the wound moist and promotes healing.
Smart Images
Figure CN223615021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical dressing technology, and in particular to an alginate dressing. Background Technology
[0002] Skin injury is the destruction or damage to the anatomical structure and function caused by severe damage to organs such as the skin. Generally, acute skin injuries will repair themselves and show obvious signs of healing within 3 weeks. However, chronic injuries heal much slower than acute injuries. Skin wound healing is a dynamic and interactive process that involves roughly three highly integrated stages, including inflammation, proliferation, and remodeling. Any imbalance in these stages can lead to an acute wound developing into a chronic wound or the formation of keloids at the wound site.
[0003] Trauma is a common and frequently occurring condition. Dressings can promptly stop wound deterioration and inflammation, and are commonly used for the care of surface wounds and internal ulcers. Generally speaking, the main functions of wound dressings include promoting wound healing, enhancing drug utilization, reducing patient pain, and improving their quality of life.
[0004] However, traditional dressings are usually attached to the patient's skin with tape, and the edges of the tape are prone to coming off after friction, which can lead to the dressing falling off. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an alginate dressing in order to solve the technical problems mentioned in the background art.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] An alginate dressing includes a backing, an alginate nonwoven fabric, and calcium alginate hydrogel. A sealing layer is provided at the bottom of the backing, and a binding structure is provided between the backing and the sealing layer. The alginate nonwoven fabric is fixedly provided at the top of the backing, and calcium alginate hydrogel is provided inside the alginate nonwoven fabric.
[0008] The binding structure includes an elastic bandage, one end of which is fixedly connected to the backing, and adhesive layers are provided on both sides of the end of the elastic bandage away from the backing.
[0009] Furthermore, the bottom side of the backing and the top side of the sealing layer are provided with an adhesive portion that cooperates with the adhesive layer.
[0010] Furthermore, the calcium alginate hydrogel includes a hydrogel base layer, and alginate microspheres are disposed inside the hydrogel base layer.
[0011] Furthermore, the elastic bandage has several evenly distributed anti-slip grooves, and an anti-slip strip is provided on the inner side of the elastic bandage between two adjacent anti-slip grooves.
[0012] Furthermore, the top of the alginate nonwoven fabric is provided with a release layer, which is glassine paper or release film coated with dimethicone oil.
[0013] Furthermore, the sealing layer and the backing are made of the same material and both are elastic.
[0014] Furthermore, the interior of the alginate microspheres is filled with trace amounts of antibacterial and healing-promoting components such as antibiotics or growth factors.
[0015] In summary, this utility model has at least one of the following beneficial technical effects:
[0016] 1. When using this alginate dressing, the alginate nonwoven fabric is placed towards the patient's wound, and the elastic bandage is pulled out from between the backing and the occlusive layer and wrapped around the patient's wound limb. Then, the end of the elastic bandage with the adhesive layer is inserted between the backing and the occlusive layer to facilitate the fixation of the dressing. After fixation, the adhesive layer of the elastic bandage is located inside the backing and the occlusive layer, which can effectively prevent the edges of the elastic bandage from lifting up and causing the elastic bandage to fall off. At the same time, there is no adhesive at the contact point between the elastic bandage and the patient's skin, which can effectively improve the comfort of the dressing during use.
[0017] 2. This alginate dressing, and the alginate nonwoven fabric, can be applied to wounds with large amounts of acute exudate. It can effectively absorb the tissue fluid flowing from the patient's wound, preventing excessive tissue fluid from affecting wound healing. The calcium alginate hydrogel can be used to dry scabs and keep the wound moist, avoiding excessive dryness that could cause the scab to easily break open. This allows the dressing to be used at different stages of wound healing, effectively improving its applicability. Attached Figure Description
[0018] 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.
[0019] Figure 1 This is a schematic diagram of the structure of an alginate dressing according to the present invention.
[0020] Figure 2 This is a schematic diagram of the structure of the alginate nonwoven fabric and calcium alginate hydrogel of an alginate dressing according to the present invention.
[0021] Figure 3 This invention relates to an alginate dressing. Figure 2 A schematic diagram of the structure at point A.
[0022] Figure 4 This is a schematic diagram of the backing and sealing layer of an alginate dressing according to the present invention.
[0023] Figure 5 This utility model discloses a structural diagram of a binding structure for an alginate dressing.
[0024] In the diagram, 1 is the backing; 2 is the alginate nonwoven fabric; 3 is the calcium alginate hydrogel; 31 is the hydrogel base layer; 32 is the alginate microspheres; 4 is the sealing layer; 5 is the binding structure; 501 is the elastic bandage; 502 is the adhesive layer; 503 is the anti-slip groove; 504 is the anti-slip strip; 6 is the adhesive part; and 7 is the release layer. Detailed Implementation
[0025] The present invention will be further described in detail below with reference to the accompanying drawings.
[0026] Example:
[0027] Reference Figures 1-5 The present invention discloses an alginate dressing, comprising a backing 1, an alginate nonwoven fabric 2, and a calcium alginate hydrogel 3. A sealing layer 4 is provided at the bottom end of the backing 1, and a binding structure 5 is provided between the backing 1 and the sealing layer 4. The alginate nonwoven fabric 2 is fixedly provided at the upper end of the backing 1, and the calcium alginate hydrogel 3 is provided inside the alginate nonwoven fabric 2.
[0028] The binding structure 5 includes an elastic bandage 501, one end of which is fixedly connected to the backing 1, and adhesive layers 502 are respectively provided on both sides of the end of the elastic bandage 501 away from the backing 1.
[0029] In this embodiment, when using it on a patient's wound, the alginate nonwoven fabric 2 is placed towards the patient's wound, and the elastic bandage 501 is pulled out from between the backing 1 and the sealing layer 4 and wrapped around the patient's wound limb. Then, the end of the elastic bandage 501 with the adhesive layer 502 is inserted between the backing 1 and the sealing layer 4 to facilitate the fixation of the dressing.
[0030] Furthermore, after fixation, the adhesive layer 502 of the elastic bandage 501 is located inside the backing 1 and the sealing layer 4, which can effectively prevent the edges of the elastic bandage 501 from lifting up and causing the elastic bandage 501 to fall off. After fixation, there is no adhesive at the contact area between the elastic bandage 501 and the patient's skin, which can effectively improve the comfort of the application.
[0031] Alginate nonwoven fabric 2 can be applied to wounds with large amounts of acute exudate. It can effectively absorb tissue fluid flowing from the patient's wound and prevent excessive tissue fluid from affecting the patient's wound healing.
[0032] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the bottom side of the backing 1 and the top side of the sealing layer 4 are provided with an adhesive part 6 that cooperates with the adhesive layer 502.
[0033] In this embodiment, the adhesive part 6 facilitates the fixation of one end of the elastic bandage 501 with the adhesive layer 502 to the backing 1 and the sealing layer 4, so that the elastic bandage 501 can be wrapped into a ring. Figure 5 As shown, this is to facilitate securing the dressing to the patient's wound.
[0034] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the calcium alginate hydrogel 3 includes a hydrogel base layer 31, and alginate microspheres 32 are disposed inside the hydrogel base layer 31.
[0035] In this embodiment, the hydrogel can be used to dry the scab-covered wound, keep the wound moist, and prevent the wound from becoming too dry, which could cause the scab-covered wound to easily break open.
[0036] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the elastic bandage 501 has a plurality of evenly distributed anti-slip grooves 503, and an anti-slip strip 504 is provided on the inner side of the elastic bandage 501 at the position between two adjacent anti-slip grooves 503.
[0037] In this embodiment, the anti-slip groove 503 can effectively improve the breathability of the elastic bandage 501, thereby improving comfort. The anti-slip strip 504 prevents the elastic bandage 501 from sliding, thus improving the stability of the elastic bandage 501 after it is fixed.
[0038] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the top of the alginate nonwoven fabric 2 is provided with a release layer 7, which is glassine paper or release film coated with dimethicone oil.
[0039] In this embodiment, the release layer 7 is used to protect the alginate nonwoven fabric 2, so that the dressing is in a closed state before use, preventing dust from adhering to the surface of the alginate nonwoven fabric 2 and causing dressing contamination.
[0040] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the sealing layer 4 and the backing 1 are made of the same material and both have elasticity.
[0041] In this embodiment, the elastic bandage 501 is effectively wrapped by the elastic material sealing layer 4 and backing 1, allowing the elastic bandage 501 to bend and stack inside the sealing layer 4 and backing 1, such as... Figure 4 As shown, this reduces the volume of the dressing when not in use, making it easier to package and store.
[0042] In a further preferred embodiment of this utility model, such as Figure 1-5 As shown, the interior of the alginate microspheres 32 is filled with trace amounts of antibacterial and healing-promoting components such as antibiotics or growth factors.
[0043] In this embodiment, the alginate microspheres 32 contain antibiotics such as rifamycin and basic fibroblast growth factor. These substances can be slowly released after the microspheres absorb the wound exudate, effectively promoting wound healing.
[0044] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. An alginate dressing, characterized in that, The backing includes a backing (1), an alginate nonwoven fabric (2), and a calcium alginate hydrogel (3). A sealing layer (4) is provided at the bottom of the backing (1), and a binding structure (5) is provided between the backing (1) and the sealing layer (4). The alginate nonwoven fabric (2) is fixedly provided at the top of the backing (1), and the calcium alginate hydrogel (3) is provided inside the alginate nonwoven fabric (2). The binding structure (5) includes an elastic bandage (501), one end of which is fixedly connected to the backing (1), and adhesive layers (502) are provided on both sides of the end of the elastic bandage (501) away from the backing (1).
2. The alginate dressing according to claim 1, characterized in that, The bottom side of the backing (1) and the top side of the sealing layer (4) are provided with an adhesive part (6) that cooperates with the adhesive layer (502).
3. The alginate dressing according to claim 2, characterized in that, The calcium alginate hydrogel (3) includes a hydrogel base layer (31), and alginate microspheres (32) are disposed inside the hydrogel base layer (31).
4. The alginate dressing according to claim 3, characterized in that, The elastic bandage (501) has several evenly distributed anti-slip grooves (503), and an anti-slip strip (504) is provided on the inner side of the elastic bandage (501) between two adjacent anti-slip grooves (503).
5. The alginate dressing according to claim 4, characterized in that, The top of the alginate nonwoven fabric (2) is provided with a release layer (7), which is glassine paper or release film coated with dimethicone oil.
6. The alginate dressing according to claim 5, characterized in that, The sealing layer (4) and the backing (1) are made of the same material and both have elasticity.