An impermeable dressing with compression function

CN224925292UActive Publication Date: 2026-11-03TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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Patent Information

Application Number
CN202521700323.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-11-03
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

Existing anti-permeability dressings are difficult to provide stable pressure on complex wounds such as joints and hyperosmolar wounds, resulting in repeated wound leakage, increasing the frequency of dressing changes for medical staff and causing skin irritation to patients.

Method used

A pressure-compression dressing was designed, comprising a waterproof and antibacterial layer, an exudate-absorbing layer, an adhesive layer, and an elastic compression element. The elastic compression element provides stable pressure, the absorbent layer absorbs exudate, the adhesive layer is fixed at the wound, and the elastic compression element contacts the wound surface to provide elastic compression.

Benefits of technology

It effectively reduces repeated wound exudation, reduces the frequency of dressing changes by medical staff, and reduces the irritation of exudate to the patient's skin, especially in areas with high exudation, such as the site of removal of chest and abdominal drainage tubes.

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Abstract

The utility model provides an anti -infiltration dressing containing compression function, include: waterproof bacteria -isolating layer, infiltrate absorption layer is prepared from water absorption material, infiltrate absorption layer sets up below waterproof bacteria -isolating layer, the bottom of infiltrate absorption layer has a accommodation space in the middle, the middle part of sticking layer is set up below infiltrate absorption layer, the middle part of sticking layer is equipped with perforation, the perforation is located just below the accommodation space, the diameter of perforation is same with the diameter of the cross section of accommodation space, elastic compression spare, it is columnar structure, elastic compression spare is prepared from rubber material, the outside diameter of cross section of elastic compression spare is adapted to the diameter of perforation, the top of elastic compression spare passes through perforation and is fixed in accommodation space. The utility model discloses an anti -infiltration dressing containing compression function can provide compression force to patient wound surface, avoid repeatedly infiltrating liquid in the wound.
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Description

Technical Field

[0001] This utility model belongs to the field of dressing technology, specifically relating to a leak-proof dressing with compression function. Background Technology

[0002] Dressings are sterile pads or drapes applied to wounds to promote healing and protect them from further damage. Exudative dressings play a crucial role in healthcare, primarily protecting wounds by absorbing exudate, isolating contaminants, and reducing backflow.

[0003] Currently, most clinically used anti-exudation dressings focus on absorbing or isolating exudate. However, they lack rigidity and cannot provide stable pressure in complex wounds such as joints and hyperosmolar wounds. This results in poor wound sealing, causing repeated exudation, which aggravates the irritation of the patient's skin and increases the frequency of dressing changes for medical staff, thus increasing their workload.

[0004] Therefore, how to provide a pressure-compression dressing that can apply pressure to the wound and prevent repeated leakage is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing waterproof dressings are not rigid enough, making it difficult to provide stable pressure, resulting in poor sealing effect on wounds and repeated leakage.

[0006] To solve the above-mentioned technical problems, this utility model provides a waterproof and antibacterial dressing with compression function, comprising: a waterproof and antibacterial layer; an exudate-absorbing layer, the exudate-absorbing layer being made of a water-absorbing material and disposed below the waterproof and antibacterial layer, the bottom of the exudate-absorbing layer having an accommodating space in the middle; an adhesive layer, the adhesive layer being disposed below the exudate-absorbing layer, the adhesive layer having a perforation in the middle, the perforation being located directly below the accommodating space, the diameter of the perforation being the same as the diameter of the cross-section of the accommodating space; and an elastic compression member, the elastic compression member having a columnar structure, the elastic compression member being made of rubber material, the outer diameter of the cross-section of the elastic compression member being adapted to the diameter of the perforation, the top of the elastic compression member passing through the perforation and fixed within the accommodating space.

[0007] As a further technical solution of this utility model, the thickness of the elastic compression member is 10-15mm.

[0008] As a further technical solution of this utility model, the elastic compression member is made of butyl rubber.

[0009] As a further technical solution of this utility model, the seepage absorption layer is made of foam material.

[0010] As a further technical solution of this utility model, the exudate absorption layer is made of medical gauze.

[0011] As a further technical solution of this utility model, the waterproof and antibacterial layer includes: a polyurethane membrane; a silicone membrane, wherein the silicone membrane is disposed below the polyurethane membrane and above the permeate absorption layer, and the size of the silicone membrane is equal to the size of the polyurethane membrane.

[0012] As a further technical solution of this utility model, the cross-sectional dimension of the permeate absorption layer is smaller than the cross-sectional dimension of the silicone membrane.

[0013] As a further technical solution of this utility model, the cross-sectional dimension of the adhesive layer is larger than the cross-sectional dimension of the permeate absorption layer.

[0014] As a further technical solution of this utility model, the adhesive layer is made of an anti-allergy material.

[0015] As a further technical solution of this utility model, the adhesive layer is made of acrylic pressure-sensitive adhesive.

[0016] Beneficial Effects: This utility model provides a pressure-sensitive anti-seepage dressing, comprising a waterproof and antibacterial layer, an exudate-absorbing layer, an adhesive layer, and an elastic compression element. The waterproof and antibacterial layer, exudate-absorbing layer, and adhesive layer are arranged sequentially from top to bottom. The innermost adhesive layer allows the anti-seepage dressing to be adhered to the patient's wound. The exudate-absorbing layer, made of absorbent material, absorbs exudate from the wound, and the outermost waterproof and antibacterial layer provides waterproofing and antibacterial protection. A perforation in the middle of the adhesive layer is located directly below the accommodating space at the bottom center of the exudate-absorbing layer, and the diameter of the perforation is the same as the diameter of the cross-section of the accommodating space. Matching the outer diameter of the cross-section of the elastic compression element, the top of the elastic compression element passes through the perforation and is fixed within the accommodating space. During clinical use, the adhesive layer can be adhered to the patient's wound, allowing the elastic compression element to directly contact the wound. Through the elasticity and hardness of the columnar structure made of rubber, the elastic compression element provides a certain pressure to the patient's wound, giving the anti-seepage dressing an elastic compression function. This can prevent repeated wound seepage, effectively reduce the frequency of dressing changes by medical staff, reduce the irritation of seepage to the patient's skin, and prevent high exudation in wounds (such as the site of chest and abdominal drainage tube removal).

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in 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 the waterproof dressing provided in the embodiment of this utility model;

[0020] Figure 2 A bottom view of the waterproof dressing provided in an embodiment of this utility model;

[0021] Figure 3 A cross-sectional view of the waterproof dressing provided in an embodiment of this utility model.

[0022] Figure label:

[0023] 1. Waterproof and antibacterial layer; 11. Polyurethane membrane; 12. Silicone membrane;

[0024] 2. Permeation absorption layer;

[0025] 3. Adhesive layer;

[0026] 4. Elastic compression component;

[0027] 5. Storage space;

[0028] 6. Perforation. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Please see Figure 1-3This embodiment provides a pressure-compression anti-seepage dressing, comprising a waterproof and antibacterial layer 1, an exudate-absorbing layer 2, an adhesive layer 3, and an elastic compression member 4. The exudate-absorbing layer 2 is made of absorbent material and is positioned below the waterproof and antibacterial layer 1, with a receiving space 5 at the center of its bottom. The adhesive layer 3 is positioned below the exudate-absorbing layer 2, with a perforation 6 in its center, located directly below the receiving space 5, and the diameter of the perforation 6 being the same as the diameter of the cross-section of the receiving space 5. The elastic compression member 4 has a columnar structure, is made of rubber, and its outer diameter matches the diameter of the perforation 6. The top of the elastic compression member 4 passes through the perforation 6 and is fixed within the receiving space 5.

[0032] Specifically, this utility model provides a pressure-compression-functional anti-seepage dressing, comprising a waterproof and antibacterial layer 1, an exudate-absorbing layer 2, an adhesive layer 3, and an elastic compression member 4. The waterproof and antibacterial layer 1, the exudate-absorbing layer 2, and the adhesive layer 3 are arranged sequentially from top to bottom. The anti-seepage dressing can be adhered to the patient's wound through the innermost adhesive layer 3. The exudate-absorbing layer 2, made of absorbent material, absorbs the exudate from the wound, and the outermost waterproof and antibacterial layer 1 provides waterproofing and antibacterial protection. A perforation 6 in the middle of the adhesive layer 3 is located directly below the accommodating space 5 at the bottom center of the exudate-absorbing layer 2. The diameter of the perforation 6 is perpendicular to the cross-section of the accommodating space 5. The diameter is the same and matches the outer diameter of the cross-section of the elastic compression member 4. The top of the elastic compression member 4 passes through the perforation 6 and is fixed in the accommodating space 5. In clinical use, the adhesive layer 3 can be pasted to the patient's wound and the elastic compression member 4 can be in direct contact with the patient's wound. The elastic compression member 4, which is columnar and made of rubber, has a certain elasticity and hardness to provide a certain pressure on the patient's wound, so that the anti-seepage dressing has an elastic compression function, which can avoid repeated seepage from the wound, effectively reduce the frequency of dressing changes by medical staff, reduce the irritation of seepage to the patient's skin, and avoid high exudation in the wound (such as the site of removal of chest and abdominal drainage tubes).

[0033] In some possible implementations, the thickness of the elastic compression member 4 is 10-15 mm.

[0034] In some possible implementations, the elastic compression member 4 is made of butyl rubber, which has advantages such as high biocompatibility and strong chemical stability.

[0035] In some possible implementations, the permeation-absorbing layer 2 is made of foam material.

[0036] This is because the exudate absorption layer 2 is made of foam material, which can absorb exudate from the wound, reduce skin irritation and reduce tension by taking advantage of the foam material's strong adsorption capacity, softness and comfort, high resilience and tensile strength.

[0037] In some possible implementations, the exudate-absorbing layer 2 is made of medical gauze.

[0038] Those skilled in the art will understand that the exudate-absorbing layer 2 is made of medical gauze, which can absorb exudate from the wound, reduce skin irritation, and alleviate tension by taking advantage of the good water absorption, breathability, softness, and comfort of medical gauze.

[0039] In some possible embodiments, the waterproof and antibacterial layer 1 includes: a polyurethane membrane 11 made of polyurethane material; and a silicone membrane 12 made of silicone material, the silicone membrane 12 being disposed below the polyurethane membrane 11 and above the permeate absorption layer 2, the size of the silicone membrane 12 being equal to the size of the polyurethane membrane 11.

[0040] This is because the silicone membrane 12 is positioned below the polyurethane membrane 11 and above the exudate absorption layer 2. The size of the silicone membrane 12 is equal to that of the polyurethane membrane 11. It can play a role in waterproofing and antibacterial barrier through the outermost polyurethane membrane 11, and has good biocompatibility and breathability. The silicone membrane 12 below the polyurethane membrane 11 has good biocompatibility, softness and elasticity, which can reduce friction and shear force at the wound site and improve comfort.

[0041] In some possible implementations, the cross-sectional dimension of the exudate-absorbing layer 2 is smaller than the cross-sectional dimension of the silicone membrane 12; the cross-sectional dimension of the adhesive layer 3 is larger than the cross-sectional dimension of the exudate-absorbing layer 2 and smaller than the cross-sectional dimension of the silicone membrane 12.

[0042] In some possible implementations, the adhesive layer 3 is made of an hypoallergenic material.

[0043] Those skilled in the art will understand that when the adhesive layer 3 is applied to the skin around the patient's wound, the risk of skin allergies can be reduced by the adhesive layer 3, which is made of hypoallergenic material.

[0044] In some possible implementations, the adhesive layer 3 is made of acrylic pressure-sensitive adhesive.

[0045] Those skilled in the art will understand that the adhesive layer 3 is made of acrylic pressure-sensitive adhesive, which gives the adhesive layer the characteristics of strong initial adhesion and controllable peeling, excellent adhesion performance, and low sensitivity or inflammation caused by long-term skin contact, and increases the fit between the elastic compression member 4 and the wound.

[0046] In some possible implementations, the waterproof dressing further includes a release liner disposed below the adhesive layer 3 and the elastic compression member 4, the size of the release liner being equal to the size of the silicone membrane 12.

[0047] Those skilled in the art will understand that the release paper is placed below the adhesive layer 3 and the elastic compression member 4. The size of the release paper is equal to the size of the silicone film 12, which can protect the anti-seepage dressing. In clinical operation, after tearing off the release paper, the anti-seepage dressing can be pasted onto the patient's wound for dressing use.

[0048] The waterproof dressing of this utility model achieves waterproofing and elastic compression simultaneously through an integrated structural design of "polyurethane + silicone + foam dressing + hypoallergenic material + rubber". The elastic compression member 4 reduces repeated leakage, and when the elastic compression member 4 loses its function, a small amount of leakage can be absorbed by the leakage absorption layer 2 to reduce the irritation of the leakage to the skin.

[0049] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0050] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A leak-proof dressing with compression function, characterized in that, include: Waterproof and antibacterial layer; The seepage absorption layer is made of water-absorbing material and is disposed below the waterproof and antibacterial layer. The bottom of the seepage absorption layer has an accommodating space in the middle. An adhesive layer is disposed below the permeate absorption layer. A perforation is formed in the middle of the adhesive layer. The perforation is located directly below the accommodating space. The diameter of the perforation is the same as the diameter of the cross-section of the accommodating space. An elastic compression member, wherein the elastic compression member has a columnar structure and is made of rubber material. The outer diameter of the cross-section of the elastic compression member is adapted to the diameter of the perforation. The top of the elastic compression member passes through the perforation and is fixed within the accommodating space.

2. The waterproof dressing as described in claim 1, characterized in that: The thickness of the elastic compression member is 10-15mm.

3. The waterproof dressing as described in claim 2, characterized in that: The elastic compression member is made of butyl rubber.

4. The waterproof dressing as described in claim 1, characterized in that: The permeation-absorbing layer is made of foam material.

5. The waterproof dressing as described in claim 1, characterized in that: The exudate-absorbing layer is made of medical gauze.

6. The waterproof dressing as described in claim 1, characterized in that, The waterproof and antibacterial layer includes: Polyurethane film; A silicone membrane is disposed below the polyurethane membrane and above the permeate absorption layer, and the size of the silicone membrane is equal to the size of the polyurethane membrane.

7. The waterproof dressing as described in claim 6, characterized in that: The cross-sectional dimension of the permeate absorption layer is smaller than that of the silicone membrane.

8. The waterproof dressing as described in claim 7, characterized in that: The cross-sectional dimension of the adhesive layer is larger than that of the permeation-absorbing layer.

9. The waterproof dressing as described in claim 1, characterized in that: The adhesive layer is made of hypoallergenic material.

10. The waterproof dressing as described in claim 9, characterized in that: The adhesive layer is made of acrylic pressure-sensitive adhesive.