Two-piece foam dressing

Abstract

The utility model provides a two-piece type foam dressing, relates to medical dressing technical field, including replaceable subassembly, fixed subassembly and first adhesive layer, replaceable subassembly includes absorption layer, fixed subassembly includes locating portion and second adhesive layer, locating portion locates the area for absorption layer installation on second adhesive layer, locating portion locates the area for absorption layer installation on the second adhesive layer, and the first adhesive layer locates the area for absorption layer installation on the second adhesive layer. The second adhesive layer in the area is a perforated transparent adhesive layer, the first adhesive layer is used for adhering the replaceable assembly and the fixing assembly to fix the absorbing layer, and the second adhesive layer is used for being adhered to the skin. Through the two-piece design of the dressing, a part of the absorption layer and the back lining layer in the center of the dressing can be separated from the dressing on the basis of an original foam dressing structure, the wound surface condition can be observed through the transparent adhesive layer after separation, the adhesive layer does not need to be stripped from the skin, and the situation that the wound surface or the surrounding skin is damaged due to the fact that the dressing needs to be uncovered when the wound surface is observed is avoided; meanwhile, after the center of the dressing completely absorbs seepage, only the replaceable assembly needs to be directly replaced, and secondary damage to the wound surface is reduced.

Description

Technical Field

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

[0002] Foam dressing is a functional dressing used for wound exudate management and has been widely used. However, there are some problems with the medical foam dressings in the prior art, such as CN202122625773.7, a silicone gel foam dressing, and CN201620093271.0, a silicone foam dressing. When used, such foam dressings are fixed by adhesion to the skin, and the foam dressings are opaque. When observing the wound surface, the dressing needs to be uncovered, which causes certain damage to the wound surface or the surrounding skin.

[0003] In addition, all foam dressings currently on the market are one-piece. When the dressing absorbs exudate to a certain extent, the dressing needs to be replaced. At this time, the exudate is often concentrated in the center of the dressing. On the one hand, replacing the entire dressing will cause waste of the dressing. On the other hand, removing the dressing and replacing the entire dressing will easily cause secondary damage. In response to the above defects, this application is proposed. Utility Model Content

[0004] The utility model aims to provide a two-piece foam dressing, which solves the problem that the dressing needs to be uncovered when observing the wound surface, which easily causes certain damage to the wound surface or surrounding skin, as well as the waste and secondary injury caused by replacing the dressing as a whole.

[0005] To solve the above problems, the utility model provides a two-piece foam dressing, including a replaceable component, a fixed component and a first adhesive layer, the replaceable component including an absorption layer, the fixed component including a positioning portion and a second adhesive layer, the positioning portion positioning an area for installing the absorption layer on the second adhesive layer, at least the second adhesive layer in this area is a perforated transparent adhesive layer, the first adhesive layer is used to bond the replaceable component and the fixed component to fix the absorption layer, the second adhesive layer is used to adhere to the skin, when it is necessary to observe the wound surface, the absorption layer is peeled off for observation, and when it is necessary to replace the absorption layer, a new replaceable component is installed on the original fixed component.

[0006] According to an embodiment of the present invention, the first adhesive layer is a part of a replaceable component, and the first adhesive layer is connected to the absorption layer.

[0007] Optionally, the first adhesive layer is part of the fixing component.

[0008] According to an embodiment of the present invention, a backing layer is provided at both the first adhesive layer and the second adhesive layer, and the backing layer is preferably made of a highly breathable PU film.

[0009] According to an embodiment of the present invention, the positioning portion is a frame body with the same outline as the absorption layer. For example, if the absorption layer is square, the positioning portion is a square frame body.

[0010] According to an embodiment of the present invention, when the replaceable component is installed on the fixed component, the first adhesive layer is connected to the upper surface of the positioning portion.

[0011] According to an embodiment of the utility model, a color developing layer is provided in the absorption layer, and the color developing layer develops color after absorbing liquid.

[0012] According to an embodiment of the present invention, the color development layer includes a plurality of color development units, such as 4 groups.

[0013] According to an embodiment of the present invention, the color development unit is a cobalt chloride test paper.

[0014] According to an embodiment of the present invention, the positioning portion material is composed of polyurethane foam or other liquid-absorbing materials alone or in combination.

[0015] According to an embodiment of the present invention, the second adhesive layer includes a silicone gel layer.

[0016] The beneficial effect of the utility model is that, through the two-piece dressing design, part of the absorption layer and the back layer in the center of the dressing can be separated from the dressing on the original foam dressing structure. After separation, the wound surface condition can be observed through the transparent adhesive layer without peeling the adhesive layer from the skin, thereby avoiding the need to uncover the dressing when observing the wound surface, which may cause damage to the wound surface or surrounding skin. After the observation, the part of the absorption layer and the back layer can be closed again; when the center of the dressing has absorbed the exudate, only the replaceable component needs to be directly replaced, without involving the peeling of the entire dressing from the skin, especially the peeling of the adhesive layer, thereby reducing secondary damage to the wound surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of a two-piece foam dressing;

[0019] Figure 2 Schematic diagram of the color development layer. DETAILED DESCRIPTION

[0020] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.

[0021] [Example 1]

[0022] A two-piece foam dressing, such as Figure 1 , comprising a replaceable component 1 and a fixed component 2,

[0023] The replaceable component 1 has a liquid absorption function and is composed of a backing layer 11, an absorption layer 12 and a first adhesive layer 13, wherein the backing layer 11 is a PU film, preferably a highly breathable PU film, and viscose is coated under the PU film; the absorption layer 12 can be composed of polyurethane foam or other materials with liquid absorption and liquid locking properties, either alone or in combination, and the absorption layer 12 can be set to a square shape, the area of ​​the backing layer 11 is larger than the area of ​​the absorption layer 12, and the first adhesive layer 13 is set at the outer position of the absorption layer 12.

[0024] The fixing component 2 has the function of fixing the dressing on the skin and having the function of visualizing the wound surface. It is composed of a back layer 21, a positioning portion 22 and a second adhesive layer 23. The back layer 21 is a PU film, preferably a highly breathable PU film. The positioning portion 22 is a frame with the same contour as the absorption layer 12. The positioning portion 22 can be composed of polyurethane foam or other liquid-absorbent materials alone or in combination; the second adhesive layer 23 is preferably made of silicone gel as an adhesive, which can fix the fixing component 2 on the skin. The area of ​​the perforated transparent adhesive layer 23 is preferably larger than the outer contour area of ​​the positioning portion 22. The second adhesive layer 23 can be a perforated transparent area in its entirety, and only the area inside the positioning portion 22 can be set as a perforated transparent adhesive layer. In this embodiment, Figure 1 , only the area inside the positioning frame is set as a perforated transparent adhesive layer.

[0025] Preferably, the wide frame of the positioning portion 22 has a certain width, and forms an area inside for accommodating the absorption layer 12 , and a top surface forms an area for bonding with the first adhesive layer 13 .

[0026] In addition, the positioning portion 22 is not limited to a frame structure, and may also be a positioning area surrounded by a plurality of dot-shaped protrusions.

[0027] In other embodiments, the first adhesive layer 13 used to achieve the connection between the replaceable component 1 and the fixed component 2 is not limited to being set on the replaceable component 1, but can also be set on the fixed component 2, such as setting the first adhesive layer 13 on the positioning portion 22.

[0028] When the replaceable component 1 is uncovered, the wound surface can be observed through the perforated transparent adhesive layer in the inner area of ​​the positioning portion 22 , and the replaceable component 1 can be continued to be adhered to the fixed component 2 after the observation.

[0029] When the dressing is attached to the wound, the exudate is absorbed by the absorbent layer 12 through the perforated transparent adhesive layer. When replacement is needed, the replaceable component 1 is directly removed and the new replaceable component 1 is adhered to the fixed component 2 without causing secondary damage to the wound.

[0030] Example 2: On the basis of Example 1, in this example, the structure of the absorption layer 12 can be set to be similar to the structure in the company's prior patent CN217987859U, that is, the absorption layer 12 includes a color-developing layer 14, a foam layer, and a silica gel layer. A protective film can be optionally provided outside the silica gel layer. The color-developing layer develops color after absorbing liquid. For example, it develops color when encountering water and can be directly observed through the backing layer. For example, Figure 2 , the color-developing layer 14 includes several color-developing units 15, and the sum of the areas of all the color-developing units 15 is smaller than the area of the foam layer. The color-developing units 15 are evenly arranged at the edge position of the foam layer.

[0031] The color-developing material in the color-developing unit 15 can be sodium peroxide, anhydrous copper sulfate, etc. In this example, cobalt chloride test paper is preferably used. When all the cobalt chloride test paper turns from blue to red, it can be regarded that this piece of dressing has reached the maximum liquid absorption capacity.

[0032] Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been completely and effectively achieved. The function and structural principle of the present invention have been shown and described in the embodiments. Without departing from the above principle, the embodiments of the present invention can have any deformation and modification.

Claims

1. A two-piece foam dressing, characterized in that: The invention comprises a replaceable component (1), a fixed component (2) and a first adhesive layer (13); the replaceable component (1) comprises an absorbent layer (12); the fixed component (2) comprises a positioning portion (22) and a second adhesive layer (23); the positioning portion (22) positions an area on the second adhesive layer (23) for installing the absorbent layer (12); the second adhesive layer (23) in the area is a perforated transparent adhesive layer; the first adhesive layer (13) is used for bonding the replaceable component (1) and the fixed component (2) to fix the absorbent layer (12); the second adhesive layer (23) is used for bonding to the skin; when it is necessary to observe the wound surface, the absorbent layer (12) is uncovered for observation; when it is necessary to replace the absorbent layer (12), a new replaceable component (1) is installed on the original fixed component (2).

2. The two-piece foam dressing according to claim 1, characterized in that: The first adhesive layer (13) is a part of the replaceable component (1), and the first adhesive layer (13) is connected to the absorption layer (12).

3. The two-piece foam dressing according to claim 2, characterized in that: The first adhesive layer (13) and the second adhesive layer (23) are both provided with a backing layer, and the backing layer is made of a highly breathable PU film.

4. The two-piece foam dressing according to any one of claims 1 to 3, characterized in that: The positioning portion (22) is a frame having the same outline as that of the absorption layer (12).

5. The two-piece foam dressing according to claim 4, characterized in that: When the replaceable component (1) is mounted on the fixed component (2), the first adhesive layer (13) is connected to the positioning portion (22).

6. The two-piece foam dressing according to any one of claims 1 to 3, characterized in that: A color development layer (14) is provided in the absorption layer (12), and the color development layer (14) develops color after absorbing liquid.

7. The two-piece foam dressing according to claim 6, characterized in that: The color development layer comprises a plurality of color development units (15).

8. The two-piece foam dressing according to claim 7, characterized in that: The color development unit (15) is cobalt chloride test paper.

9. The two-piece foam dressing according to claim 1, characterized in that: The material of the positioning portion (22) is polyurethane foam.

10. The two-piece foam dressing according to claim 1, characterized in that: The second adhesive layer (23) includes a silicone gel layer.

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