A foam dressing for an anorectal field

Abstract

The utility model provides a kind of foam dressing for anorectal department, including substrate layer, adhesive layer, foam absorption layer, isolation breathable layer and release paper, the adhesive layer covers the top surface of substrate layer, the foam absorption layer is adhered in the top surface central position of substrate layer by adhesive layer, the isolation breathable layer is adhered in the periphery of foam absorption layer on substrate layer top surface by adhesive layer, the release paper covers the top surface of foam absorption layer, isolation breathable layer and adhesive layer. The utility model is directly contacted with wound by foam absorption layer, fully absorbs exudate at wound, and by setting isolation breathable layer in the periphery of foam absorption layer, wound around anus can be isolated from adhesive layer, avoid adhesive layer directly with wound contact to cause to tear wound when replacing dressing, improve patient comfort, more conducive to the healing of wound.

Description

Technical Field

[0001] This utility model relates to medical dressings, and more particularly to a foam dressing for anorectal diseases. Background Technology

[0002] Currently, the main anorectal diseases include perianal eczema, perianal abscess, and hemorrhoids. Perianal eczema and perianal abscess involve large areas, especially perianal abscesses, which are often inflammatory and have a lot of bloody discharge. After treatment, these diseases require dressings for protection and continued treatment and healing.

[0003] Traditional dressings are applied directly to the wound with adhesive. However, the adhesive can easily stick to the wound, making it easy to tear the wound when changing the dressing, which is not conducive to wound healing and also results in poor patient comfort. Utility Model Content

[0004] This invention proposes a foam dressing for anorectal surgery, which solves the problems of traditional dressings in the prior art, such as the adhesive easily adhering to the wound, tearing the wound when changing the dressing, which is not conducive to wound healing and has poor patient comfort.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a foam dressing for proctology, comprising a substrate layer, an adhesive layer, a foam absorbent layer, a breathable insulating layer, and a release paper. The adhesive layer covers the top surface of the substrate layer, the foam absorbent layer is bonded to the center of the top surface of the substrate layer via the adhesive layer, the breathable insulating layer is bonded to the periphery of the foam absorbent layer on the top surface of the substrate layer via the adhesive layer, and the release paper covers the top surface of the foam absorbent layer, the breathable insulating layer, and the adhesive layer.

[0007] Preferably, the foam absorbent layer is made of polyurethane foam material.

[0008] Specifically, the foam absorbent layer has a protrusion with a parabolic cross-section in the center.

[0009] Specifically, the insulating and breathable layer is a PE film with several breathable holes, and an avoidance hole is provided in the middle of the insulating and breathable layer. The inner wall contour of the avoidance hole matches the outer wall edge contour of the foam absorption layer.

[0010] Preferably, the adhesive layer is a pressure-sensitive adhesive, which is coated in a grid pattern on the top surface of the substrate layer.

[0011] Preferably, the substrate layer is made of PU film or non-woven fabric.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model allows the foam absorbent layer to directly contact the wound, fully absorbing the exudate at the wound site. By setting an isolation and breathable layer around the foam absorbent layer, the perianal wound can be separated from the adhesive layer, avoiding direct contact between the adhesive layer and the wound, which would cause the wound to tear when changing dressings. This improves patient comfort and is more conducive to wound healing. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0014] Figure 1 This is a cross-sectional structural diagram of a foam dressing for anorectal use according to the present invention;

[0015] Figure 2 This is a top view of a foam dressing for proctology after the release paper has been removed.

[0016] In the diagram: 1. Substrate layer; 2. Adhesive layer; 3. Foam absorbent layer; 4. Isolation and breathable layer; 5. Release paper; 6. Protrusion. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Reference Figure 1 This utility model provides a foam dressing for anorectal use, comprising a substrate layer 1, an adhesive layer 2, a foam absorbent layer 3, an insulating and breathable layer 4, and a release paper 5. The adhesive layer 2 covers the top surface of the substrate layer 1. The foam absorbent layer 3 is bonded to the center of the top surface of the substrate layer 1 via the adhesive layer 2. The insulating and breathable layer 4 is bonded to the periphery of the foam absorbent layer 3 on the top surface of the substrate layer 1 via the adhesive layer 2. The release paper 5 covers the top surface of the foam absorbent layer 3, the insulating and breathable layer 4, and the adhesive layer 2.

[0019] Preferably, the foam absorption layer 3 is made of polyurethane foam material. Polyurethane foam is soft, comfortable, and has excellent biocompatibility. At the same time, it has a fast liquid absorption rate and can absorb 10 to 30 times its own weight, or even more, which can fully absorb the exudate at the perianal wound. In addition, polyurethane foam has a certain degree of breathability, which can improve the patient's comfort.

[0020] In this embodiment, the foam absorbent layer 3 is selected with a density of 30-50 kg / m³. 3 Medical-grade polyurethane foam with a pore size of 100-300μm and a liquid absorption rate of 20mL / (cm²). 2 The material has a liquid absorption capacity of up to 25 times its own weight (·min). It is non-irritating to the skin and has a breathability of 1500-2000 g / (m²). 2 •24h).

[0021] Specifically, the foam absorbent layer 3 has a protrusion 6 in the center with a parabolic cross-section, which can better fit the perianal area. On the one hand, it can improve the absorption effect of exudate, and on the other hand, it can facilitate positioning when the dressing is applied.

[0022] Specifically, the insulating and breathable layer 4 is a PE film with several breathable holes. An avoidance hole is provided in the middle of the insulating and breathable layer 4. The inner wall contour of the avoidance hole matches the outer wall edge contour of the foam absorbent layer 3. The PE film can be breathable and can prevent the adhesive layer 2 from directly adhering to the skin. It can effectively prevent the adhesive layer 2 from tearing the wound when changing dressings and can better protect the wound.

[0023] In this embodiment, the thickness of the insulating breathable layer 4 is 20-50 μm, and the pore density is 50-80 pores / cm. 2 Pore ​​size 0.1-0.3mm, air permeability ≥2000g / (m³) 2 •24h).

[0024] In practice, the coverage area of ​​the isolation breathable layer 4 is smaller than that of the adhesive layer 2. The dressing is fixed to the patient's perianal skin by the adhesive layer 2 surrounding the isolation breathable layer 4.

[0025] Preferably, the adhesive layer 2 is a pressure-sensitive adhesive, which is coated in a grid pattern on the top surface of the substrate layer 1. This increases the stability of the adhesive layer 2 structure and allows gas to pass through the honeycomb-like gaps between the grid-like adhesive layers 2, thus increasing the breathability of the dressing.

[0026] Preferably, the substrate layer 1 is made of PU film or non-woven fabric. PU film or non-woven fabric is elastic, waterproof and breathable, which can effectively prevent exudate from the wound from seeping out of the dressing, and the good breathability improves the patient's comfort.

[0027] In this embodiment, the substrate layer 1 is made of PU film with a thickness of 0.05-0.1 mm, a tensile strength ≥15 MPa, and a moisture permeability ≥3000 g / (m²). 2 •24h), waterproof rating IPX7.

[0028] Optionally, a superabsorbent fiber layer (such as composite fiber superabsorbent material SAP or SAF) can be provided at the bottom of the polyurethane foam absorbent layer 3, which can absorb and lock in a large amount of exudate, and is suitable for wounds with a lot of exudate.

[0029] Optionally, the edges of the polyurethane foam absorbent layer 3 are treated with a locking process to increase the density of the edge portion of the foam absorbent layer 3. This can effectively prevent a large amount of exudate from seeping out from the edge of the polyurethane foam after being squeezed out, further improving the anti-seepage performance of the dressing.

[0030] Optionally, pH-sensitive color-changing fibers (color-changing threshold pH>7.5) can be embedded at the edge of the foam absorbent layer 3. When the absorbent solution is saturated or infected, the color changes from blue to red, reminding the patient to change the dressing in time. The test sensitivity reaches 90%.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foam dressing for proctology, characterized in that, The material includes a substrate layer (1), an adhesive layer (2), a foam absorbent layer (3), an insulating and breathable layer (4), and a release paper (5). The adhesive layer (2) is applied to the top surface of the substrate layer (1). The foam absorbent layer (3) is bonded to the center of the top surface of the substrate layer (1) via the adhesive layer (2). The insulating and breathable layer (4) is bonded to the periphery of the foam absorbent layer (3) on the top surface of the substrate layer (1) via the adhesive layer (2). The release paper (5) is applied to the top surface of the foam absorbent layer (3), the insulating and breathable layer (4), and the adhesive layer (2).

2. The foam dressing for proctology as described in claim 1, characterized in that, The foam absorbent layer (3) is made of polyurethane foam material.

3. The proctology foam dressing as described in claim 1, characterized in that, The foam absorbent layer (3) has a protrusion (6) with a parabolic cross-section in the center.

4. The foam dressing for proctology as described in claim 1, characterized in that, The insulating and breathable layer (4) is a PE film with several breathable holes. An avoidance hole is provided in the middle of the insulating and breathable layer (4). The inner wall contour of the avoidance hole matches the outer wall edge contour of the foam absorption layer (3).

5. A foam dressing for proctology as described in claim 1, characterized in that, The adhesive layer (2) is a pressure-sensitive adhesive, which is coated in a grid pattern on the top surface of the substrate layer (1).

6. A foam dressing for proctology as described in claim 1, characterized in that, The substrate layer (1) is made of PU film or non-woven fabric.

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