Composite superabsorbent polyurethane foam dressing

Abstract

The utility model relates to the technical field of medical supplies, in particular to a composite superabsorbent polyurethane foam dressing which comprises a dressing outer layer, an adhesive layer arranged at the bottom of the dressing outer layer, a composite waterproof layer arranged at the bottom of the dressing outer layer, an antibacterial and anti-inflammatory layer arranged at the bottom of the composite waterproof layer, and a waterproof layer arranged at the bottom of the antibacterial and anti-inflammatory layer. The medical non-woven fabric short fiber comprises an antibacterial and anti-inflammatory layer, an elastic tensile layer is arranged at the bottom of the antibacterial and anti-inflammatory layer, a polyurethane foam dressing layer is arranged at the bottom of the elastic tensile layer, an anti-adhesion layer is arranged at the bottom of the polyurethane foam dressing layer, and a breathable part is arranged between the elastic tensile layer and the anti-adhesion layer. Therefore, the anti-adhesion layer does not have adsorbability on exuded tissue fluid, meanwhile, the tissue fluid can be absorbed by the polyurethane foam dressing layer through the multiple gap parts, the situation that the anti-adhesion layer is adhered to a wound when the anti-adhesion layer is taken down is avoided, secondary injury of the wound is avoided, and comfort of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical supplies technical field, concretely is a kind of composite superabsorbent polyurethane foam dressing. BACKGROUND

[0002] Although the existing polyurethane foam dressing can improve the liquid absorption speed and prevent the leakage of the locked liquid from sticking to the wound, there is a large amount of wound exudate in the initial stage of wound healing, and the foam dressing expands after absorption, which can easily generate pressure on the wound and affect the wound healing progress. It has poor air permeability and is prone to infection. In addition, the exudate has strong adhesion, and long-term compression on the wound can easily cause adhesion, resulting in pain and even secondary rupture of the wound during removal. Therefore, we propose a composite superabsorbent polyurethane foam dressing to solve the above problems. SUMMARY

[0003] The utility model aims at providing a kind of composite superabsorbent polyurethane foam dressing to solve the problems raised in the above background.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of composite superabsorbent polyurethane foam dressing, including dressing outer layer, the bottom of dressing outer layer is provided with adhesive layer, the bottom of dressing outer layer is provided with composite waterproof layer, the bottom of composite waterproof layer is provided with antibacterial anti-inflammatory layer, the bottom of antibacterial anti-inflammatory layer is provided with elastic tensile layer, the bottom of elastic tensile layer is provided with polyurethane foam dressing layer, the bottom of polyurethane foam dressing layer is provided with anti-adhesion layer, and the elastic tensile layer and anti-adhesion layer are provided with air-permeable part.

[0005] Further preferably, the elastic tensile layer is arranged in an arc shape and closely adheres to the bottom of the antibacterial anti-inflammatory layer.

[0006] Further preferably, the interior of the antibacterial anti-inflammatory layer is densely filled with a plurality of anti-inflammatory gels for slow release to sterilize the wound.

[0007] Further preferably, after the anti-inflammatory gels in the interior of the antibacterial anti-inflammatory layer are completely released, the elastic tensile layer loses the extrusion force and then resets, at which time the space of the air-permeable part between the elastic tensile layer and the anti-adhesion layer becomes larger, thereby improving the air permeability.

[0008] Further preferably, the anti-adhesion layer is formed by interweaving a plurality of groups of medical non-woven short fibers and forming a plurality of gap portions.

[0009] Further preferably, the medical non-woven short fibers have good waterproofness, so that the anti-adhesion layer has no adsorption to the exuded tissue fluid, and at the same time, the tissue fluid can be absorbed by the polyurethane foam dressing layer through the plurality of gap portions.

[0010] Further preferably, the bottom of the outer layer of the dressing is provided with an adhesive layer for fixing on the skin surface.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、the inside of the antibacterial and anti-inflammatory layer is densely filled with a plurality of anti-inflammatory gels for slow release to achieve sterilization, which can effectively sterilize, and after the anti-inflammatory gel in the antibacterial and anti-inflammatory layer is slowly released, the elastic tensile layer loses the extrusion force and then resets, at this time, the space of the breathable part between the elastic tensile layer and the anti-adhesion layer is larger, and the breathability can be improved;

[0013] 2、the medical non-woven fabric short fibers have good waterproofness, so that the anti-adhesion layer has no adsorption to the exuded tissue fluid, and at the same time, the tissue fluid can be absorbed by the polyurethane foam dressing layer through a plurality of gap parts, the situation of adhesion to the wound is avoided when being taken off, secondary damage to the wound is avoided, and the comfort of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the utility model;

[0015] Figure 2 It is a front view of the utility model;

[0016] Figure 3 It is a front view of the utility model;

[0017] Figure 4 It is a front view of the utility model.

[0018] In the figure: 1, outer layer of dressing; 2, adhesive layer; 3, composite waterproof layer; 4, antibacterial and anti-inflammatory layer; 5, elastic tensile layer; 6, polyurethane foam dressing layer; 7, anti-adhesion layer; 8, anti-inflammatory gel; 9, medical non-woven fabric short fibers; 10, gap part; 11, breathable part. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] EMBODIMENT

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of composite superabsorbent polyurethane foam dressing, including dressing outer layer 1, the bottom of dressing outer layer 1 is provided with adhesive layer 2, the bottom of dressing outer layer 1 is provided with composite waterproof layer 3, the bottom of composite waterproof layer 3 is provided with antibacterial anti-inflammatory layer 4, the bottom of antibacterial anti-inflammatory layer 4 is provided with elastic tensile layer 5, the bottom of elastic tensile layer 5 is provided with polyurethane foam dressing layer 6, the bottom of polyurethane foam dressing layer 6 is provided with anti-adhesion layer 7, and air-permeable part 11 is equipped between elastic tensile layer 5 and anti-adhesion layer 7, when using, when the wound of patient needs to be protected by polyurethane foam dressing, the protective film of adhesive layer 2 is opened, anti-adhesion layer 7 is covered on the wound, and anti-inflammatory gel 8 in antibacterial anti-inflammatory layer 4 is pressed to elastic tensile layer 5 during adhesion, and polyurethane foam dressing layer 6 in the bottom of elastic tensile layer 5 is closely combined with anti-adhesion layer 7, and polyurethane foam dressing layer 6 is adsorbed to the tissue fluid exuded from the wound, while anti-inflammatory gel 8 is slowly released, and is slowly released and covered on the surface of the wound by the gap part 10 of anti-adhesion layer 7, and is sterilized, when anti-inflammatory gel 8 is slowly released to a certain degree, the extrusion force received by elastic tensile layer 5 gradually weakens, and elastic tensile layer 5 drives polyurethane foam dressing layer 6 to reset, the space of air-permeable part 11 is increased, the air permeability is improved, the situation that adhesion occurs with the wound when being taken off is avoided, secondary damage to the wound is avoided, and the comfort of user is improved.

[0022] In the embodiment, specifically: the elastic tensile layer 5 is arranged in an arc shape and closely combined with the bottom of the antibacterial anti-inflammatory layer 4.

[0023] In the embodiment, specifically: the inside of the antibacterial anti-inflammatory layer 4 is densely filled with a plurality of anti-inflammatory gels 8 for slowly releasing and sterilizing the wound.

[0024] In the embodiment, specifically: after the anti-inflammatory gel 8 in the antibacterial anti-inflammatory layer 4 is completely slowly released, the elastic tensile layer 5 loses the extrusion force and then resets, at this time, the space of the air-permeable part 11 between the elastic tensile layer 5 and the anti-adhesion layer 7 is increased, and the air permeability can be improved.

[0025] In the embodiment, specifically: the anti-adhesion layer 7 is formed by interweaving a plurality of groups of medical non-woven short fibers 9 and forming a plurality of gap parts 10.

[0026] In the embodiment, specifically: the medical non-woven short fibers 9 have good waterproofness, so that the anti-adhesion layer 7 does not have adsorption to the exuded tissue fluid, and at the same time, the tissue fluid can be absorbed by the polyurethane foam dressing layer 6 through the plurality of gap parts 10.

[0027] In the embodiment, specifically: the bottom of the dressing outer layer 1 is provided with the adhesive layer 2 for being fixed on the surface of the skin.

[0028] In operation, when a patient's wound requires protection with a polyurethane foam dressing, the protective film of the adhesive layer 2 is removed, and the anti-adhesion layer 7 is placed over the wound. During application, the anti-inflammatory gel 8 within the antibacterial and anti-inflammatory layer 4 compresses the elastic tensile layer 5. The polyurethane foam dressing layer 6 at the bottom of the elastic tensile layer 5 adheres tightly to the anti-adhesion layer 7. The polyurethane foam dressing layer 6 absorbs the tissue fluid exudated from the wound. Simultaneously, the anti-inflammatory gel 8 is slowly released through the gaps 10 of the anti-adhesion layer 7 and covers the wound surface for sterilization. After the anti-inflammatory gel 8 has been released to a certain extent, the compressive force on the elastic tensile layer 5 gradually weakens, causing the elastic tensile layer 5 to reposition the polyurethane foam dressing layer 6. The space of the breathable part 11 increases, improving breathability and preventing adhesion to the wound upon removal, thus avoiding secondary damage to the wound and improving user comfort.

[0029] 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 composite superabsorbent polyurethane foam dressing comprising a dressing outer layer (1), the bottom of the dressing outer layer (1) is provided with an adhesive layer (2), the bottom of the adhesive layer (2) is provided with a protective film, characterized in that: The bottom of the outer layer (1) of the dressing is provided with a composite waterproof layer (3), the bottom of the composite waterproof layer (3) is provided with an antibacterial and anti-inflammatory layer (4), the bottom of the antibacterial and anti-inflammatory layer (4) is provided with an elastic tensile layer (5), the bottom of the elastic tensile layer (5) is provided with a polyurethane foam dressing layer (6), the bottom of the polyurethane foam dressing layer (6) is provided with an anti-adhesion layer (7), and a breathable part (11) is arranged between the elastic tensile layer (5) and the anti-adhesion layer (7).

2. A composite superabsorbent polyurethane foam dressing according to claim 1, characterized in that: The elastic tensile layer (5) is arranged in an arc shape and closely adheres to the bottom of the antibacterial and anti-inflammatory layer (4).

3. A composite superabsorbent polyurethane foam dressing according to claim 2, characterized in that: The inside of the antibacterial and anti-inflammatory layer (4) is densely filled with a plurality of anti-inflammatory gels (8) for slow release to achieve sterilization of the wound.

4. A composite superabsorbent polyurethane foam dressing according to claim 3, characterized in that: After the anti-inflammatory gels (8) in the antibacterial and anti-inflammatory layer (4) are completely released, the elastic tensile layer (5) loses the extrusion force and then resets, at this time, the space of the breathable part (11) between the elastic tensile layer (5) and the anti-adhesion layer (7) becomes larger, and the breathability can be improved.

5. A composite superabsorbent polyurethane foam dressing according to claim 4, characterized in that: The anti-adhesion layer (7) is formed by interweaving a plurality of groups of medical non-woven short fibers (9) and forming a plurality of gap parts (10).

6. A composite superabsorbent polyurethane foam dressing according to claim 5, characterized in that: The medical non-woven short fibers (9) have good waterproofness, so that the anti-adhesion layer (7) has no adsorption to the exuded tissue fluid, and at the same time, the tissue fluid can be absorbed by the polyurethane foam dressing layer (6) through the plurality of gap parts (10).

7. The composite superabsorbent polyurethane foam dressing of claim 1, wherein: The bottom of the outer layer (1) of the dressing is provided with a mucilage layer (2) for fixing on the surface of the skin.

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