Waterproof elastic bandage with good air permeability

By introducing a combination of a corrugated polytetrafluoroethylene breathable layer and an Apocynum venetum fiber deformation layer into the bandage, the problem of poor breathability of traditional bandages is solved, achieving a waterproof and breathable effect and promoting wound healing.

CN224126167UActive Publication Date: 2026-04-17ZHONGSHAN HOSPITAL XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN HOSPITAL XIAMEN UNIV
Filing Date
2025-01-09
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional bandages, while waterproof, lack breathability, causing water to accumulate at the wound site and hindering healing.

Method used

It adopts a combination structure of hydrophobic layer, breathable layer and deformation layer. The breathable layer has a corrugated structure and is made of polytetrafluoroethylene. The hydrophobic layer is coated with a hydrophobic coating on its upper surface. The deformation layer is made of Apocynum venetum fiber. Support parts are set on the breathable layer to maintain breathability and fit.

Benefits of technology

The bandage achieves better breathability while being waterproof, improves the dry environment at the wound site, helps wound healing, and promotes healing through the antibacterial properties of Apocynum venetum fibers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The waterproof elastic bandage with the good breathability comprises a hydrophobic layer, a breathable layer and a deformation layer, and the breathable layer is of a corrugated structure; the deformation layer is made of a skin-friendly elastic material; the breathable layer is made of a polytetrafluoroethylene material; the lower surface of the hydrophobic layer is fixedly attached to the upper surface of the breathable layer, and the lower surface of the breathable layer is fixedly attached to the upper surface of the deformation layer. Compared with the prior art, the waterproof elastic bandage with the good air permeability has the advantages that the corrugated polytetrafluoroethylene breathable layer is arranged, so that the bandage is waterproof, and meanwhile, the bandage with the same area has better air permeability.
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Description

Technical Field

[0001] This utility model relates to the field of elastic bandages, specifically to a waterproof elastic bandage with good breathability. Background Technology

[0002] Bandages are gauze bandages used to wrap wounds or affected areas. They are common medical supplies with many different types and bandaging methods. The appropriate type and method must be selected according to the location of the injury. They are widely used. Traditional medical bandages are ordinary single-layer or double-layer composite structures with limited functionality, providing only simple bandaging. While they are waterproof, they lack good breathability.

[0003] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Utility Model Content

[0004] The main purpose of this utility model is to provide a waterproof elastic bandage with good breathability, which has the advantages of preventing water from entering the wound and good breathability.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A breathable waterproof elastic bandage includes a hydrophobic layer, a breathable layer, and a deformation layer. The breathable layer has a corrugated structure. The deformation layer is made of a skin-friendly elastic material. The breathable layer is made of polytetrafluoroethylene. The lower surface of the hydrophobic layer is adhered and fixed to the upper surface of the breathable layer, and the lower surface of the breathable layer is adhered and fixed to the upper surface of the deformation layer.

[0007] Furthermore, the corrugated structure of the breathable layer has a receiving cavity, which is filled with a support portion.

[0008] Furthermore, a first tear opening and a first tear line are formed on the hydrophobic layer. The first tear opening is located at the edge of the hydrophobic layer, and the first tear line is located along the width direction of the hydrophobic layer. One end of the first tear line extends to the first tear opening.

[0009] Furthermore, a second tear opening and a second tear line are formed on the hydrophobic layer. The second tear opening is disposed on the first tear line, and the second tear line is disposed along the length direction of the hydrophobic layer. The second tear line passes through the second tear opening.

[0010] Furthermore, the support portion is made of nylon.

[0011] Furthermore, a hydrophobic groove is formed on the upper surface of the hydrophobic layer.

[0012] Furthermore, the upper surface of the hydrophobic layer is coated with a hydrophobic coating.

[0013] Furthermore, the hydrophobic coating is carnauba wax.

[0014] Furthermore, the deformation layer is made of Apocynum venetum fiber.

[0015] With the above structure, the waterproof elastic bandage with good breathability disclosed in this utility model has at least the following beneficial effects:

[0016] The use of polytetrafluoroethylene (PTFE) breathable layer ensures that the bandage has good breathability while maintaining its waterproof performance. The corrugated breathable layer forms pleats with crests and troughs, thus providing a larger breathable surface area and further improving the product's breathability.

[0017] Second, by setting the support part, the corrugated breathable layer can be prevented from being flattened, which would affect the breathability of the breathable layer and ensure the stability of the breathability.

[0018] Third, the deformable layer is made of Apocynum venetum fiber, which has good elasticity and can conform to the deformation of the patient's skin, resulting in a better fit. In addition, Apocynum venetum fiber has good antibacterial properties and has a significant inhibitory effect on Candida albicans, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, etc., which facilitates the healing of the patient's wound.

[0019] Compared with the prior art, this utility model provides a waterproof elastic bandage with excellent breathability. By setting a corrugated polytetrafluoroethylene breathable layer, the bandage is waterproof while having better breathability for the same area. Attached Figure Description

[0020] Figure 1 This utility model relates to a three-dimensional view of a waterproof elastic bandage with good breathability.

[0021] Figure 2 This utility model relates to a cross-sectional view of a waterproof elastic bandage with good breathability.

[0022] Figure 3 This is a perspective view of the breathable layer in this utility model.

[0023] Figure 4 This is a three-dimensional view of the breathable layer from another angle in this utility model.

[0024] Figure 5 This is a top view of the hydrophobic layer in this utility model.

[0025] Figure 6 This utility model relates to a waterproof elastic bandage with good breathability, and is shown in the usage state diagram.

[0026] In the picture:

[0027] Hydrophobic layer 1; breathable layer 2; deformation layer 3;

[0028] First tear-off opening 11; First tear line 12; Second tear-off opening 13; Second tear line 14;

[0029] 15. Drainage channel; 21. Receiving cavity; 22. Support part. Detailed Implementation

[0030] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0031] like Figures 1 to 6 As shown, this utility model relates to a waterproof elastic bandage with excellent breathability, comprising a hydrophobic layer 1, a breathable layer 2, and a deformation layer 3. The breathable layer 2 has a corrugated structure. The deformation layer 3 is made of a skin-friendly elastic material. The breathable layer 2 is made of polytetrafluoroethylene (PTFE). The lower surface of the hydrophobic layer 1 is adhered and fixed to the upper surface of the breathable layer 2, and the lower surface of the breathable layer 2 is adhered and fixed to the upper surface of the deformation layer 3. The use of PTFE in the breathable layer 2 ensures that the bandage's waterproof performance has good breathability. The corrugated shape of the breathable layer 2 creates pleats with crests and troughs, thus providing a larger breathable surface area and further improving the product's breathability.

[0032] Preferably, the corrugated structure of the breathable layer 2 has a receiving cavity 21, and the receiving cavity 21 is filled with a support portion 22. The support portion 22 is made of nylon material. By providing the support portion 22, the corrugated breathable layer 2 can be prevented from being flattened, which would affect the breathability of the breathable layer 2 and ensure the stability of the breathability.

[0033] Preferably, such as Figure 5 As shown, a first easy-tear opening 11 and a first easy-tear line 12 are formed on the hydrophobic layer 1. The first easy-tear opening 11 is located at the edge of the hydrophobic layer 1, and the first easy-tear line 12 is located along the width direction of the hydrophobic layer 1. One end of the first easy-tear line 12 extends from the first easy-tear opening 11. This facilitates tearing the bandage from the first easy-tear opening 11 along the first easy-tear line 12 during operation, improving the product's convenience.

[0034] Preferably, such as Figure 6As shown, a second tear-off opening 13 and a second tear line 14 are formed on the hydrophobic layer 1. The second tear-off opening 13 is located on the first tear line 12, and the second tear line 14 is arranged along the length of the hydrophobic layer 1, passing through the second tear-off opening 13. This allows the operator to tear the bandage at the location of the first tear line 12, find the second tear-off opening 13 at that location, and then tear the bandage along the second tear-off opening 13 and the second tear line 14 to directly remove the bandage, facilitating bandaging by medical staff or patients.

[0035] Preferably, such as Figure 1 As shown, a hydrophobic groove 15 is formed on the upper surface of the hydrophobic layer 1. By setting the hydrophobic groove 15, residual liquid on the upper surface of the hydrophobic layer 1 can be quickly drained, improving the waterproof effect of the bandage.

[0036] Preferably, the upper surface of the hydrophobic layer 1 is coated with a hydrophobic coating. The hydrophobic coating is carnauba wax. The wax is melted and decomposed in water to form a wax particle solution, which is then adhered to the fibers of the hydrophobic layer 1. This treatment allows the hydrophobic layer 1 to be hydrophobic while maintaining its breathability and natural feel.

[0037] Preferably, the deformable layer 3 is made of Apocynum venetum fiber. It has good elasticity, allowing it to conform to the patient's skin deformation for a better fit. Furthermore, Apocynum venetum fiber has good antibacterial properties, significantly inhibiting Candida albicans, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, etc., thus facilitating wound healing.

[0038] Compared with the prior art, this utility model provides a waterproof elastic bandage with excellent breathability. By setting a corrugated polytetrafluoroethylene breathable layer 2, the bandage is waterproof while having better breathability for the same area.

[0039] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A breathable and waterproof elastic bandage, characterized in that, It includes a hydrophobic layer, a breathable layer, and a deformation layer. The breathable layer has a corrugated structure. The deformation layer is made of a skin-friendly elastic material. The breathable layer is made of polytetrafluoroethylene. The lower surface of the hydrophobic layer is attached and fixed to the upper surface of the breathable layer, and the lower surface of the breathable layer is attached and fixed to the upper surface of the deformation layer.

2. The breathable and waterproof elastic bandage as described in claim 1, characterized in that, The permeable layer has a corrugated structure with a receiving cavity, which is filled with a support portion.

3. The breathable and waterproof elastic bandage as described in claim 1, characterized in that, A first tear opening and a first tear line are formed on the hydrophobic layer. The first tear opening is located at the edge of the hydrophobic layer, and the first tear line is located along the width direction of the hydrophobic layer. One end of the first tear line extends to the first tear opening.

4. The breathable and waterproof elastic bandage as described in claim 3, characterized in that, A second tear opening and a second tear line are formed on the hydrophobic layer. The second tear opening is disposed on the first tear line, and the second tear line is disposed along the length direction of the hydrophobic layer. The second tear line passes through the second tear opening.

5. The breathable and waterproof elastic bandage as described in claim 2, wherein the support portion is made of nylon.

6. The breathable and waterproof elastic bandage as described in claim 1, characterized in that, The upper surface of the hydrophobic layer has hydrophobic grooves.

7. The breathable and waterproof elastic bandage as described in claim 1, characterized in that, The upper surface of the hydrophobic layer is coated with a hydrophobic coating.

8. The breathable and waterproof elastic bandage as described in claim 7, characterized in that, The hydrophobic coating is carnauba wax.

9. A breathable and waterproof elastic bandage as described in claim 1, characterized in that, The deformation layer is made of Apocynum venetum fiber.