Hydrogel dressing for promoting wound healing

By incorporating structures such as compressed elastic cotton, breathable membrane tubes, and breathable drying cotton into the hydrogel dressing, the problem of insufficient waterproofness and breathability is solved, achieving efficient drying and protection of the wound and promoting wound healing.

CN223930307UActive Publication Date: 2026-02-24JIANGSU HUIJINRAN MEDICAL EQUIP CO LTD
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Patent Information

Application Number
CN202423073526.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2026-02-24
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing hydrogel dressings are insufficient in terms of waterproofness, breathability, and protective effect, making it difficult to achieve both rapid drying and avoid secondary damage at the same time.

Method used

A structure comprising an adhesive waterproof fabric, a raised waterproof fabric, compressed elastic cotton, a breathable membrane tube, breathable drying cotton, and a foam absorbent cotton layer was designed. Through the combination of ventilated holes and the breathable membrane tube, waterproof breathability and wound support protection are achieved.

Benefits of technology

While maintaining waterproof properties, it improves breathability, reduces secondary damage to wounds, and promotes wound healing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydrogel dressing for promoting wound healing, which comprises sticky waterproof cloth and inner dressing filling cotton, the middle of the top end of the sticky waterproof cloth is provided with convex waterproof cloth, and compressed elastic cotton is embedded and filled between the bottom end of the convex waterproof cloth and the top end of the inner dressing filling cotton. A foam absorbent cotton layer is filled in the middle of the interior of the inner dressing filling cotton, a ventilation film pipe is embedded in the inner layer of the protruding waterproof cloth, ventilation drying cotton is filled in the inner layer of the ventilation film pipe, and a plurality of ventilation holes are formed in the positions, between the inner dressing filling cotton and the foam absorbent cotton layer and between the inner dressing filling cotton and the compressed elastic cotton, of the connecting position in a penetrating mode. The utility model has the beneficial effects that through the arc-shaped inclined air guide structure and the elastic cotton compression ventilation structure, the waterproof effect is corrected while the air permeability is improved, and meanwhile, through the elastic protection structure, the protection effect is also improved, the secondary injury is reduced, and the wound recovery effect is integrally improved.
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Description

Technical Field

[0001] This utility model relates to the field of medical wound care technology, specifically a hydrogel dressing that promotes wound healing. Background Technology

[0002] Hydrogel dressings consist of a hydrogel layer, a polyurethane film, and a protective layer. This product is suitable for the care of chronic wounds with poor granulation tissue growth, such as lower limb ulcers and bedsores. It can also be used for second-degree burns. The cooling and comfortable effect of the gel can reduce wound pain, making it an important medical wound healing and care material.

[0003] Existing hydrogel dressings that promote wound healing still have some problems when used. First, while existing hydrogel dressings are waterproof, they have poor breathability. Blood absorbed by the hydrogel, which is difficult to dry quickly, can easily cause further damage to the wound. However, specially designed breathable drying cotton or vents can lead to water seepage. Second, existing hydrogel dressings are too thin, and the wound is prone to secondary damage when it is impacted or comes into contact with the outside, resulting in poor protective effect.

[0004] Therefore, we propose a hydrogel dressing that promotes wound healing to address the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] A hydrogel dressing for promoting wound healing includes an adhesive waterproof fabric and an inner dressing filling cotton. The top center of the adhesive waterproof fabric has a raised waterproof fabric. Compression elastic cotton is embedded between the bottom end of the raised waterproof fabric and the top of the inner dressing filling cotton. The inner center of the inner dressing filling cotton is filled with a foam absorbent cotton layer. A ventilated membrane tube is embedded in the inner layer of the raised waterproof fabric. The inner layer of the ventilated membrane tube is filled with breathable and dry cotton. Multiple ventilated holes are provided through the connection points between the inner dressing filling cotton and the foam absorbent cotton layer and the compression elastic cotton.

[0008] In a preferred embodiment, this utility model can be further configured as follows:

[0009] By adopting the above technical solution, the bottom end of the inner dressing filling cotton is embedded with multiple extended cotton strips at the bottom end of the foam absorbent cotton layer.

[0010] In a preferred embodiment, this utility model can be further configured as follows:

[0011] By adopting the above technical solution, multiple extended cotton strips and foam absorbent cotton layers are interconnected, and their bottom surfaces coincide with the bottom surfaces of the inner dressing filling cotton.

[0012] In a preferred embodiment, this utility model can be further configured as follows:

[0013] By adopting the above technical solution, the left and right ends of the ventilated membrane tube extend obliquely to the bottom ends of the two sides of the raised waterproof fabric and are connected to the outside of the raised waterproof fabric.

[0014] In a preferred embodiment, this utility model can be further configured as follows:

[0015] By adopting the above technical solution, the top middle part of the compressed elastic cotton is closely attached to the bottom middle part of the breathable dry cotton.

[0016] In a preferred embodiment, this utility model can be further configured as follows:

[0017] By adopting the above technical solution, the ventilation membrane tube, compressed elastic cotton, air vents and foam absorbent cotton layer are interconnected.

[0018] In a preferred embodiment, this utility model can be further configured as follows:

[0019] By adopting the above technical solution, the inner dressing filling cotton is filled into the inner bottom end of the raised waterproof fabric, and the bottom outer end face of the raised waterproof fabric is sealed and connected to one end of the adhesive waterproof fabric.

[0020] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0021] 1. In this utility model, by setting up compressed elastic cotton, a ventilated membrane tube, and breathable drying cotton, during use, the foam absorbent cotton layer absorbs the expansion of liquid, or the raised waterproof fabric is repeatedly subjected to force or the force of human movement, causing the compressed elastic cotton to be squeezed. Its elastic compression recovery characteristics continuously generate compression adsorption force, and the air at the bottom of the two sides of the raised waterproof fabric is drawn into the interior through the ventilated membrane tube and introduced into the foam absorbent cotton layer through the vent holes for ventilation and drying treatment. While ensuring the waterproof effect, the breathability is improved, thus improving the wound healing effect.

[0022] 2. In this utility model, by setting up a raised waterproof fabric, compressed elastic cotton, and foam absorbent cotton layer, when in use, the compressed elastic cotton and the foam absorbent cotton layer filled in the inner dressing filling cotton between the top of the raised waterproof fabric and the inner dressing filling cotton have a certain elasticity, which supports the raised waterproof fabric, making the protection effect on the wound better, reducing the impact force, and avoiding secondary injury. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of an embodiment of the present invention;

[0024] Figure 2 This is a front cross-sectional view of one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure at point A in one embodiment of the present invention.

[0026] Figure label:

[0027] 1. Adhesive waterproof fabric; 2. Raised waterproof fabric; 3. Inner lining filling cotton; 4. Foam absorbent cotton layer; 5. Compression elastic cotton; 6. Extension cotton strip; 7. Ventilation membrane tube; 8. Ventilation holes; 9. Breathable drying cotton. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a hydrogel dressing that promotes wound healing.

[0031] Example 1:

[0032] Combination Figures 1-3 As shown, this utility model provides a hydrogel dressing that promotes wound healing.

[0033] Specifically, it includes an adhesive waterproof fabric 1 and an inner filling cotton 3. The top center of the adhesive waterproof fabric 1 has a raised waterproof fabric 2. Compressed elastic cotton 5 is embedded between the bottom end of the raised waterproof fabric 2 and the top of the inner filling cotton 3. The inner filling cotton 3 has a foam absorbent cotton layer 4 in its center. A ventilated membrane tube 7 is embedded in the inner layer of the raised waterproof fabric 2. The inner layer of the ventilated membrane tube 7 is filled with breathable drying cotton 9, which is mainly non-woven fabric used to fill the ventilated membrane tube 7. It also features non-absorbency, moisture resistance, breathability, non-toxicity, odorlessness, and low cost. Multiple vent holes 8 are provided between the inner filling cotton 3 and the foam absorbent cotton layer 4 and the compressed elastic cotton 5. Multiple extended cotton strips 6 are embedded at the bottom end of the inner filling cotton 3, located at the bottom end of the foam absorbent cotton layer 4. The extended cotton strips 6 are all made of absorbent cotton and contain a certain amount of other absorbent materials. The hemostatic drug, while absorbing water, also protects and stops bleeding from the wound. Multiple extended cotton strips 6 are interconnected with the foam absorbent cotton layer 4, and their bottom ends overlap with the bottom ends of the inner dressing filling cotton 3. The left and right ends of the ventilation membrane tube 7 extend obliquely to the bottom ends of the raised waterproof fabric 2 and are connected to the outside of the raised waterproof fabric 2. The top middle of the compressed elastic cotton 5 is close to the bottom middle of the breathable drying cotton 9. The ventilation membrane tube 7, compressed elastic cotton 5, ventilation holes 8 and foam absorbent cotton layer 4 are interconnected. The use of the above components, under the influence of various compression forces, the elastic compression recovery characteristics of the compressed elastic cotton 5 continuously generate compression adsorption force, and through the ventilation membrane tube 7, external gas is drawn into the interior through the breathable drying cotton 9 and introduced into the foam absorbent cotton layer 4 through the ventilation holes 8 for ventilation and drying treatment, improving waterproof effect and breathability, and improving wound healing effect.

[0034] Example 2:

[0035] Combination Figure 2 As shown, based on Example 1,

[0036] Specifically, according to the use of each component in Embodiment 1, the compressed elastic cotton 5 is mainly composed of a mixture of elastic fibers and cotton fibers, which is both soft and elastic. The expansion and recovery of the foam in the foam absorbent cotton layer 4 also has a certain degree of elasticity. Overall, it supports the raised waterproof fabric 2, improves the protection effect on the wound, and reduces secondary damage.

[0037] Combination Figure 1 and Figure 2 As shown, in the above embodiments,

[0038] Specifically, the inner filling cotton 3 is filled into the inner bottom end of the raised waterproof fabric 2, and the bottom outer end face of the raised waterproof fabric 2 is sealed to one end of the adhesive waterproof fabric 1.

[0039] The working principle and usage process of this utility model are as follows: First, during use, the foam absorbent cotton layer 4 absorbs and expands the liquid through multiple extended cotton strips 6, or the repeated force exerted on the raised waterproof fabric 2 or the action generated by human movement causes the compression elastic cotton 5 to be squeezed. Its elastic compression recovery characteristics continuously generate compression adsorption force, and the air at the bottom of both sides of the raised waterproof fabric 2 is drawn into the interior through the breathable drying cotton 9 via the ventilated membrane tube 7 and introduced into the foam absorbent cotton layer 4 through the ventilated holes 8 for ventilation and drying treatment. While ensuring the waterproof effect, the breathability is improved, which improves the wound healing effect. Second, during use, the compression elastic cotton 5 between the top of the raised waterproof fabric 2 and the inner dressing filling cotton 3, and the foam absorbent cotton layer 4 filled in the inner dressing filling cotton 3, both have a certain elasticity, which supports the raised waterproof fabric 2, making the protection effect on the wound higher, reducing the impact force, and avoiding secondary injury.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hydrogel dressing for promoting wound healing, comprising an adhesive waterproof fabric (1) and an inner filling cotton (3), characterized in that, The top center of the adhesive waterproof fabric (1) is provided with a raised waterproof fabric (2). A compressed elastic cotton (5) is embedded between the bottom end of the raised waterproof fabric (2) and the top end of the inner dressing filling cotton (3). The inner center of the inner dressing filling cotton (3) is filled with a foam absorbent cotton layer (4). A ventilated membrane tube (7) is embedded in the inner layer of the raised waterproof fabric (2). The inner layer of the ventilated membrane tube (7) is filled with breathable drying cotton (9). Multiple ventilated holes (8) are opened through the connection between the inner dressing filling cotton (3) and the foam absorbent cotton layer (4) and the compressed elastic cotton (5).

2. The hydrogel dressing for promoting wound healing according to claim 1, characterized in that, The bottom end of the inner dressing filling cotton (3) is located at the bottom end of the foam absorbent cotton layer (4) and is embedded with multiple extended cotton strips (6).

3. The hydrogel dressing for promoting wound healing according to claim 2, characterized in that, Multiple of the extended cotton strips (6) are interconnected with the foam absorbent cotton layer (4), and their bottom surfaces coincide with the bottom surfaces of the inner dressing filling cotton (3).

4. The hydrogel dressing for promoting wound healing according to claim 1, characterized in that, The left and right ends of the ventilation membrane tube (7) extend obliquely to the bottom ends of the two sides of the raised waterproof fabric (2) and are connected to the outside of the raised waterproof fabric (2).

5. A hydrogel dressing for promoting wound healing according to claim 1, characterized in that, The top middle part of the compressed elastic cotton (5) is close to the bottom middle part of the breathable dry cotton (9).

6. The hydrogel dressing for promoting wound healing according to claim 1, characterized in that, The ventilation membrane tube (7), compressed elastic cotton (5), ventilation holes (8) and foam absorbent cotton layer (4) are interconnected.

7. The hydrogel dressing for promoting wound healing according to claim 1, characterized in that, The inner dressing filling cotton (3) is filled into the inner bottom end of the raised waterproof fabric (2), and the bottom outer end face of the raised waterproof fabric (2) is sealed to one end of the adhesive waterproof fabric (1).