Foam dressing

Abstract

The utility model provides a foam dressing, which relates to the technical field of medical dressings, and comprises a backing layer, a deodorization bacteriostatic body, an absorption layer and an adhesive layer, the deodorization bacteriostatic body and the absorption layer are positioned between the backing layer and the adhesive layer, the adhesive layer is used for being adhered to skin, the deodorization bacteriostatic body is in contact with the absorption layer, and the deodorization bacteriostatic body is in contact with the absorption layer. The deodorant antibacterial body comprises a seepage absorption body, a sterilization body and a peculiar smell removal body, the deodorant antibacterial body is added on the absorption layer, the dressing has the capabilities of deodorization, bacteriostasis and high seepage absorption, microorganisms in seepage can be killed while a large amount of seepage at a wound is absorbed, and the peculiar smell removal effect of the dressing is improved. And peculiar smell generated by seepage is removed, so that rapid healing of wounds is promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical dressings, in particular to a foam dressing. Background Art

[0002] The increasing demand for care for chronic wounds such as bedsores and diabetic ulcers caused by the elderly has created significant growth potential for the medical dressing market. As demand for traditional medical dressings slows, demand for new medical dressings is rapidly increasing.

[0003] Among them, foam dressings are increasingly widely used in the clinical use of chronic wound healing. Foam dressings avoid the disadvantages of traditional wound dressings to a large extent. They can not only provide comprehensive protection for wounds, but also promote wound healing.

[0004] However, some chronic wounds that are difficult to heal often produce a large amount of exudate, and the microorganisms contained in the exudate cause secondary infection or decay of the wound, and cause the wound to produce odor, which affects the patient. The current foam dressings do not have deodorizing and antibacterial functions, and are unable to absorb the odor generated by patients lying down for a long time. In response to the above defects, this application is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a foam dressing, which solves the defect that traditional foam dressings do not have deodorizing and antibacterial functions. It can absorb wound exudate and kill microorganisms in the exudate at the same time, thereby reducing the odor problem caused by the exudate.

[0006] In order to solve the above problems, the utility model provides a foam dressing, including a backing layer, a deodorizing and antibacterial body, an absorbing layer and an adhesive layer. The deodorizing and antibacterial body and the absorbing layer are located between the backing layer and the adhesive layer. The adhesive layer is used to adhere to the skin. The deodorizing and antibacterial body is arranged in contact with the absorbing layer. The deodorizing and antibacterial body includes an exudate absorber, a bactericidal body and an odor-removing body. The arrangement of the deodorizing and antibacterial body can enable the dressing to have the ability of deodorization, antibacterial and high absorption of exudate.

[0007] Optionally, the deodorizing and antibacterial body can be provided as a single layer, or can be provided in combination with an absorbing layer.

[0008] When a combined arrangement is adopted, optionally, the absorption layer is provided with one or more through holes, and the deodorizing and antibacterial body is provided in the through holes.

[0009] Optionally, a recessed area is provided on the absorption layer, and the deodorizing and antibacterial body is provided in the recessed area.

[0010] Furthermore, the thickness of the absorption layer gradually increases from the middle to the outer edge, forming a recessed area with a gradual depth change, so that the middle area close to the wound position has a larger volume of deodorizing and antibacterial bodies.

[0011] According to an embodiment of the present invention, the liquid-permeable absorber includes a highly absorbent resin, the deodorizing body includes activated carbon, and the bactericidal body includes Ailanthus odorifera powder.

[0012] Among them, the super absorbent resin can absorb a large amount of wound exudate.

[0013] Activated carbon powder has good adsorption properties, good air permeability, corrosion resistance and good deodorizing properties. While removing odors, it can also assist the exudate absorber in absorbing exudate.

[0014] Blumea balsamifera powder is a natural ingredient that is non-toxic to humans and non-irritating to the skin. It has certain antibacterial ability, a broad antibacterial spectrum and no drug resistance. It has bactericidal, anti-inflammatory, antioxidant, analgesic and sedative effects.

[0015] According to an embodiment of the present invention, the foam dressing further includes a buffer layer, and the buffer layer is located between the absorption layer and the adhesive layer.

[0016] In other optional embodiments, the liquid absorption body and the odor removal body may be integrated and provided, for example, both may be activated carbon, and have the functions of absorbing liquid and removing odor.

[0017] According to one embodiment of the present invention, the buffer layer and the absorption layer are both made of polyurethane foam. It should be noted that the material is not limited, and any material with the ability to absorb exudate and have buffering properties can be used in this patent.

[0018] According to an embodiment of the present invention, the foam dressing further includes a protective layer, which is arranged on the outside of the adhesive layer.

[0019] The beneficial effect of the utility model is that by adding a deodorizing and antibacterial body to the absorption layer, the addition of the deodorizing and antibacterial body enables the dressing to have the ability of deodorizing, antibacterial and high absorption of exudate. It can absorb a large amount of exudate from the wound while killing the microorganisms in the exudate and removing the odor generated by the exudate, thereby promoting rapid healing of the wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 Schematic diagram of the overall structure of the foam dressing;

[0022] Figure 2 Schematic diagram of the structure of the absorption layer in Example 1;

[0023] Figure 3Schematic diagram of the structure of the absorption layer in Example 2;

[0024] Figure 4 Schematic diagram of the structure of the absorption layer in Example 3. DETAILED DESCRIPTION

[0025] The following description is intended only to disclose the present invention and to enable those skilled in the art to implement the present invention. The embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0026] [Example 1]

[0027] A foam dressing, such as Figure 1 , comprising a backing layer 1, an absorption layer 2, a buffer layer 3, an adhesive layer 4 and a protective layer 5 which are arranged in sequence.

[0028] The backing layer 1 is a PU backing layer, which has high air permeability, waterproof and antibacterial properties.

[0029] The absorption layer 2 is preferably made of polyurethane foam, which has the ability to absorb exudate, cushion and conform to wounds, and the thickness is preferably set to 2mm-4mm.

[0030] The buffer layer 3 is preferably made of polyurethane foam, which has the ability to absorb exudate, cushion and fit the wound. The thickness is preferably 1mm-3mm.

[0031] The adhesive layer 4 is made of silicone gel.

[0032] The protective layer 5 is a PE protective film.

[0033] It should be noted that the above materials are not limited, and any material that can achieve the functions of each layer can be applied. For example, any material with protective ability can be used as the protective layer 5, any material with adhesive ability can be used as the adhesive layer 4, any material with liquid absorption and buffering properties can be used as the absorption layer 2 and the buffer layer 3, and any material with waterproof and breathable properties can be used as the backing layer 1.

[0034] The deodorizing and antibacterial body is arranged in contact with the absorption layer 2. The deodorizing and antibacterial body includes a liquid absorption body, a bactericidal body and a deodorizing body. Through the arrangement of the deodorizing and antibacterial body, the dressing can have the ability of deodorization, antibacterial and high absorption of liquid on the basis of meeting the absorbency and water-locking properties.

[0035] Among the deodorizing and antibacterial bodies, the exudate absorber includes a highly absorbent resin, the deodorizing body includes activated carbon, and the bactericidal body includes blanquet deodorant powder; among them, the highly absorbent resin can absorb a large amount of wound exudate, the activated carbon powder has good adsorption properties, good air permeability, corrosion resistance and good deodorizing properties, and blanquet deodorant powder is a natural ingredient, non-toxic to humans, non-irritating to the skin, has certain antibacterial ability, a broad antibacterial spectrum and no drug resistance, and has bactericidal, anti-inflammatory, antioxidant, analgesic and sedative effects.

[0036] The liquid-permeable absorber, bactericidal body and deodorizing body can be arranged in a mixed manner, in a layered mixed manner, or in a separate manner (ie, the liquid-permeable absorber, bactericidal body and deodorizing body are arranged separately).

[0037] In this solution, a mixed setting is preferably adopted.

[0038] Optional method for preparing a deodorizing antibacterial body:

[0039] Prepare the raw materials: Calculate the raw materials by weight: 20-30 parts of activated carbon powder, 15-25 parts of SAP (super absorbent resin), 15-25 parts of Blumea balsamifera powder, and 30-40 parts of solvent glue (dry glue);

[0040] (1) Add all the raw materials to ethyl acetate and stir until uniform to obtain a mixture solution.

[0041] (2) The mixture solution is dried at 110-130°C for 10-20 minutes to completely volatilize the ethyl acetate in the mixture, thereby forming a deodorizing and antibacterial body.

[0042] The SAP (super absorbent resin) in the deodorizing and antibacterial agent absorbs large amounts of wound exudate; the activated carbon powder has excellent adsorption properties, good air permeability, corrosion resistance, and excellent odor removal properties; and the Blumea Balsamifera powder is a natural ingredient that is non-toxic and non-irritating to the skin. It has certain antibacterial properties with a broad antibacterial spectrum and no drug resistance, and has antibacterial, anti-inflammatory, antioxidant, analgesic, and sedative effects. Therefore, the deodorizing and antibacterial agent effectively improves the wound environment and effectively prevents wounds from rotting and stinking in an oxygen-free environment.

[0043] In this embodiment, the deodorizing and antibacterial body is provided in combination with the absorption layer.

[0044] Specifically, if Figure 2 The absorption layer 2 is provided with a through hole 21, and the deodorizing and antibacterial body is provided in the through hole 21. Preferably, the through hole 21 is located in the middle of the absorption layer 2 and is a circular hole with a radius of 18 mm.

[0045] Example 2:

[0046] The difference from Example 1 is that Figure 3The absorption layer 2 is provided with a plurality of through holes 21, which can be evenly distributed or unevenly distributed, preferably evenly distributed. Each through hole 21 is a circle with a radius of 3mm-8mm, and the through hole spacing is 10mm-20mm. A deodorizing and antibacterial body is added to the through hole 21, or one of a liquid absorber, a bactericidal body and a deodorizing body is added to different through holes 21 respectively.

[0047] Preferably, the through hole radius is 5 mm and the through hole spacing is 15 mm.

[0048] Example 3:

[0049] The difference from Example 1 is that a recessed area 22 is provided on the absorption layer 2 , and the deodorizing and antibacterial body is provided in the recessed area 22 .

[0050] like Figure 4 The thickness of the absorption layer 2 gradually increases from the middle to the outer edge, forming a recessed area 22 with a gradual depth change.

[0051] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations and modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A foam dressing, characterized in that: The invention comprises a backing layer (1), a deodorizing and antibacterial body, an absorbing layer (2) and an adhesive layer (4); the deodorizing and antibacterial body and the absorbing layer (2) are located between the backing layer (1) and the adhesive layer (4); the adhesive layer (4) is used for adhering to the skin; the deodorizing and antibacterial body is arranged in contact with the absorbing layer (2); and the deodorizing and antibacterial body comprises a liquid-permeating absorber, a bactericidal body and an odor-removing body.

2. The foam dressing according to claim 1, characterized in that: The absorption layer (2) is provided with a through hole (21), and the deodorizing and antibacterial body is arranged in the through hole (21).

3. The foam dressing according to claim 2, characterized in that: One through hole (21) is provided.

4. The foam dressing according to claim 2, characterized in that: A plurality of through holes (21) are provided.

5. The foam dressing according to claim 1, characterized in that: A recessed area (22) is provided on the absorption layer (2), and the deodorizing and antibacterial body is provided in the recessed area (22).

6. The foam dressing according to claim 5, characterized in that: The thickness of the absorption layer (2) gradually increases from the middle to the outer edge, forming a recessed area (22) with a gradually changing depth.

7. The foam dressing according to any one of claims 1 to 6, characterized in that: The liquid-permeable absorber includes a highly absorbent resin, the deodorizing body includes activated carbon, and the bactericidal body includes Blumea balsamifera powder.

8. The foam dressing according to claim 7, characterized in that: The foam dressing further comprises a buffer layer (3), which is located between the absorbent layer (2) and the adhesive layer (4).

9. The foam dressing according to claim 8, characterized in that: The buffer layer (3) and the absorption layer (2) are both made of polyurethane foam.

10. The foam dressing according to claim 8 or 9, characterized in that: The foam dressing also includes a protective layer (5).

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