Hydrophilic fiber dressing

Abstract

The utility model belongs to the technical field of wound surface dressings, and particularly relates to a hydrophilic fiber dressing which comprises a skin-friendly layer, a connecting ring is fixedly connected to the upper surface of the skin-friendly layer, polyurethane foam is arranged between the inner side wall of the connecting ring and the upper surface of the skin-friendly layer, a hydrogel layer is arranged on the upper surface of the skin-friendly layer, and the outer side wall of the hydrogel layer is provided with a hydrophilic layer. A breathable layer is arranged on the upper side of the hydrogel layer. When the hydrogel dressing is used, the release paper is uncovered, the blocking strip can block leakage of treatment medicine when the hydrogel dressing is not used, the dressing is aligned to and bonded to the surface of a skin wound, medicine in the hydrogel layer makes contact with the wound through the channel, wound healing is accelerated, excessive or used medicine is absorbed by polyurethane foam, and when seepage occurs to the wound, the dressing can be used for treating the wound. The exudate enters the channel and is absorbed by the dry polyurethane foam, so that the influence of the exudate on the wound and the like is reduced, the exudate can be further absorbed by the hydrogel layer after the medicine is completely released, and the exudate absorption effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of wound dressing technology, specifically a hydrophilic fiber dressing. Background Technology

[0002] Hydrophilic fiber dressings are composed of natural fibers (cellulose derivatives) and are a comfortable and soft sterile non-woven fabric dressing. After absorbing wound exudate, they quickly form a highly transparent gel that can adhere closely to the wound, maintaining a moist healing environment while effectively preventing exudate leakage and maceration of the surrounding skin. This helps the wound heal and removes necrotic tissue without damaging new tissue.

[0003] When using some existing dressings, the tension at the bottom causes the hydrophilic fiber dressing to press against the wound surface. For wounds with a lot of exudate, after absorbing the exudate and swelling, the pressure on the wound surface is relatively large, and the exudate absorption effect is poor in the later stages of dressing use.

[0004] Therefore, a hydrophilic fiber dressing is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a hydrophilic fiber dressing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydrophilic fiber dressing, comprising a skin-friendly layer, a connecting ring fixedly connected to the upper surface of the skin-friendly layer, a polyurethane foam disposed between the inner sidewall of the connecting ring and the upper surface of the skin-friendly layer, a hydrogel layer disposed on the upper surface of the skin-friendly layer, a breathable layer disposed on the upper side of the hydrogel layer, the breathable layer being sewn to the upper side of the inner sidewall of the connecting ring, a uniformly distributed channel disposed on the inner sidewall of the skin-friendly layer, and an adhesive layer disposed on the lower surface of the skin-friendly layer.

[0007] As a further preferred embodiment of this technical solution: a release paper is bonded to the lower surface of the adhesive layer, and a uniformly distributed blocking strip is fixedly connected to the upper surface of the release paper, the blocking strip being configured to match the channel.

[0008] As a further preferred embodiment of this technical solution: an isolation layer is fixedly connected to the lower surface of the breathable layer, and the isolation layer is a polyethylene film.

[0009] As a further preferred embodiment of this technical solution: a therapeutic agent is added to the hydrogel layer, the hydrogel layer is in a saturated state, and the hydrogel layer is a polyvinyl alcohol-polyvinylpyrrolidone copolymer hydrogel.

[0010] As a further preferred embodiment of this technical solution, the adhesive layer is a medical pressure-sensitive adhesive.

[0011] As a further preferred embodiment of this technical solution, the breathable layer is made of non-woven fabric.

[0012] As a further preferred embodiment of this technical solution, the polyurethane foam is in a dry state.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When using this invention, peel off the release paper; the blocking strip prevents leakage of the therapeutic drug when not in use. Align the dressing with the skin wound surface and adhere it. The medication inside the hydrogel layer comes into contact with the wound through the channels, accelerating wound healing. Excess or used medication is absorbed by the polyurethane foam. When exudate occurs in the wound, the exudate passes through the channels and is absorbed by the dry polyurethane foam, reducing the pressure of the exudate on the wound. Furthermore, the hydrogel layer after the medication has been released can further absorb the exudate, improving the absorption effect. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 2 In this utility model Figure 1 Enlarged view of the structure of area A;

[0017] Figure 3 This is a schematic diagram of the structure of the skin-friendly layer, polyurethane foam, and channels in this utility model;

[0018] Figure 4 This is a schematic diagram of the release paper and the blocking strip in this utility model.

[0019] In the diagram: 1. Skin-friendly layer; 2. Connecting ring; 3. Polyurethane foam; 4. Hydrogel layer; 5. Breathable layer; 6. Channel; 7. Adhesive layer; 8. Release paper; 9. Barrier strip; 10. Isolation layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. 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.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "equipment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a hydrophilic fiber dressing, comprising a skin-friendly layer 1, a connecting ring 2 fixedly connected to the upper surface of the skin-friendly layer 1, a polyurethane foam 3 disposed between the inner sidewall of the connecting ring 2 and the upper surface of the skin-friendly layer 1, a hydrogel layer 4 disposed on the upper surface of the skin-friendly layer 1, a breathable layer 5 disposed on the upper side of the hydrogel layer 4, the breathable layer 5 being sewn to the upper side of the inner sidewall of the connecting ring 2, uniformly distributed channels 6 disposed on the inner sidewall of the skin-friendly layer 1, and an adhesive layer 7 disposed on the lower surface of the skin-friendly layer 1; in use, the dressing is aligned and adhered to the surface of the skin wound, water... The gel layer 4 can create a moist environment. Depending on the treatment purpose, the internal treatment drugs can be antibiotics, anti-inflammatory drugs, etc. The drugs come into contact with the wound through the channel 6 to accelerate wound healing. Excess or used drugs are absorbed by the polyurethane foam 3 (the absorption capacity of polyurethane foam 3 is significantly higher than that of hydrogel layer 4). When there is exudate in the wound, the exudate enters through the channel 6 and is absorbed by the dry polyurethane foam 3, reducing the pressure of the exudate on the wound. Moreover, after the drug is released, the hydrogel layer 4 can further absorb the exudate, improving the absorption effect of the exudate.

[0023] In this embodiment, specifically: release paper 8 is bonded to the lower surface of the adhesive layer 7, and evenly distributed blocking strips 9 are fixedly connected to the upper surface of the release paper 8. The blocking strips 9 are matched with the channel 6. The release paper 8 can ensure the adhesive force of the adhesive layer 7 when not in use, and the blocking strips 9 closely cooperate with the channel 6 to prevent the leakage of therapeutic drugs when not in use.

[0024] In this embodiment, specifically: an isolation layer 10 is fixedly connected to the lower surface of the breathable layer 5. The isolation layer 10 is a polyethylene film. The isolation layer 10 has good breathability and waterproofness to prevent drug leakage.

[0025] In this embodiment, specifically: a therapeutic agent is added to the hydrogel layer 4, the hydrogel layer 4 is in a saturated state, and the hydrogel layer 4 is a polyvinyl alcohol-polyvinylpyrrolidone copolymer hydrogel.

[0026] In this embodiment, specifically: the adhesive layer 7 is a medical pressure-sensitive adhesive.

[0027] In this embodiment, specifically: the breathable layer 5 is made of non-woven fabric.

[0028] In this embodiment, specifically: the polyurethane foam 3 is in a dry state; the polyurethane foam 3 has a high absorption rate, which facilitates the absorption of exudate and already absorbed drugs.

[0029] The working principle of this utility model is as follows: When in use, peel off the release paper 8. The release paper 8 can ensure the adhesion of the adhesive layer 7 when not in use. The blocking strip 9 works closely with the channel 6 to prevent the leakage of the therapeutic drug when not in use. Align the dressing with the skin wound surface and stick it. The hydrogel layer 4 can form a moist environment. Depending on the treatment purpose, the internal therapeutic drug can be antibiotics, anti-inflammatory drugs, etc. The drug comes into contact with the wound through the channel 6 to accelerate wound healing. Excess or used drugs are absorbed by the polyurethane foam 3 (the absorption capacity of polyurethane foam 3 is significantly higher than that of hydrogel layer 4). When there is exudate in the wound, the exudate enters through the channel 6 and is absorbed by the dry polyurethane foam 3, reducing the pressure of the exudate on the wound and other effects. Moreover, the hydrogel layer 4 after the drug is released can further absorb the exudate, improving the absorption effect of the exudate.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A hydrophilic fiber dressing, comprising a skin-friendly layer (1), characterized in that: A connecting ring (2) is fixedly connected to the upper surface of the skin-friendly layer (1). A polyurethane foam (3) is provided between the inner wall of the connecting ring (2) and the upper surface of the skin-friendly layer (1). A hydrogel layer (4) is provided on the upper surface of the skin-friendly layer (1). A breathable layer (5) is provided on the upper side of the hydrogel layer (4). The breathable layer (5) is sewn to the upper side of the inner wall of the connecting ring (2). The inner wall of the skin-friendly layer (1) is provided with uniformly distributed channels (6). An adhesive layer (7) is provided on the lower surface of the skin-friendly layer (1).

2. The hydrophilic fiber dressing according to claim 1, characterized in that: The lower surface of the adhesive layer (7) is bonded with release paper (8), and the upper surface of the release paper (8) is fixedly connected with uniformly distributed blocking strips (9), which are matched with the channel (6).

3. The hydrophilic fiber dressing according to claim 1, characterized in that: An isolation layer (10) is fixedly connected to the lower surface of the breathable layer (5), and the isolation layer (10) is a polyethylene film.

4. The hydrophilic fiber dressing according to claim 1, characterized in that: The hydrogel layer (4) contains a therapeutic agent, the hydrogel layer (4) is in a saturated state, and the hydrogel layer (4) is a polyvinyl alcohol-polyvinylpyrrolidone copolymer hydrogel.

5. A hydrophilic fiber dressing according to claim 1, characterized in that: The adhesive layer (7) is a medical pressure-sensitive adhesive.

6. The hydrophilic fiber dressing according to claim 1, characterized in that: The breathable layer (5) is made of non-woven fabric.

7. The hydrophilic fiber dressing according to claim 1, characterized in that: The polyurethane foam (3) is in a dry state.

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