High-water-content transparent medical hydrogel film without backing layer

Abstract

The utility model provides a backing-layer-free high-water-content transparent medical hydrogel pasting film, which relates to the technical field of medical hydrogel pasting films and comprises an adhesion layer, a hydrogel layer is arranged on the top wall of the adhesion layer, a surface layer B is arranged on the top wall of the hydrogel layer, a surface layer A is arranged on the top wall of the surface layer B, and the surface layer A is arranged on the top wall of the surface layer B. Uniformly distributed adsorption air holes are formed in the outer wall of the adhesion layer, the anti-fracture assembly comprises a plurality of groups of I-shaped frame brackets arranged on the inner walls of the surface layer A and the surface layer B, the I-shaped frame brackets are uniformly distributed, and I-shaped frame heads are symmetrically and fixedly connected to the outer walls of the I-shaped frame brackets. According to the utility model, the proportions of polyester and polyurethane used by the surface layer A and the surface layer B have a certain difference, so that the surface layer A has better toughness, elasticity and extensibility compared with the surface layer B, bending deformation is better carried out, and the phenomenon that the film is broken from the outer side to lose the use function is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical hydrogel film technical field, concretely relates to a kind of high water content transparent medical hydrogel film without backing layer. BACKGROUND

[0002] Medical hydrogel film is a kind of film specially designed for medical purposes, with high water content and soft gel texture. It is usually used for wound care, medical device protection and barrier between skin and environment, aiming to provide a comfortable, protective and moist healing environment.

[0003] The existing medical hydrogel film often cancels the backing layer to provide better wearing comfort for patients, and the hydrogel film becomes relatively soft, which is easily damaged by external friction or impact. It may need to be replaced frequently during use, has low wear resistance, and is easily broken if the pulling force exceeds the bottom line of the film's toughness during use. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of high water content transparent medical hydrogel film without backing layer, which solves the problems raised in the above background technology.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] The embodiment of the utility model provides a kind of high water content transparent medical hydrogel film without backing layer, comprising: an adhesive layer, the top wall of the adhesive layer is provided with a hydrogel layer, the top wall of the hydrogel layer is provided with a surface layer B, the top wall of the surface layer B is provided with a surface layer A, and the outer wall of the adhesive layer is provided with uniformly distributed adsorption and ventilation holes, further comprising:

[0007] The anti-breaking assembly comprises a H-shaped frame bracket arranged on the inner walls of the surface layer A and the surface layer B, the H-shaped frame bracket is uniformly distributed and provided with a plurality of groups, the outer wall of the H-shaped frame bracket is symmetrically fixedly connected with a H-shaped frame head, the H-shaped frame head is fixedly connected with the surface layer A and the surface layer B, the adjacent H-shaped frame heads are nested with each other, and the outer wall of the H-shaped frame head is provided with a filler hole.

[0008] Further, the surface layer A and the surface layer B are made of polyurethane, the proportion of polyurethane used in the surface layer A is 70-80%, and the proportion of polyurethane used in the surface layer B is 60-70%.

[0009] Through the above technical scheme, the proportion of polyurethane is different, and the toughness and elasticity of the surface layer A and the surface layer B are also different, i.e. the elasticity of the surface layer A is greater than that of the surface layer B, so the anti-pulling capacity is greater than that of the surface layer B.

[0010] Further, the surface layer A and the surface layer B are made of polyester, the proportion of polyester used in the surface layer A is 20-30%, and the proportion of polyester used in the surface layer B is 30-40%.

[0011] Through the technical scheme, the hardness of the surface layer A and the surface layer B is greater than that of polyurethane by adding polyester, and the hardness of the surface layer B is increased.

[0012] Further, the I-shaped bracket and the I-shaped head are made of aluminum alloy, and the thickness of the aluminum alloy is 0.5-2mm.

[0013] Through the technical scheme, the thickness of the aluminum alloy is kept between 0.5-2mm, so that the strength is kept while having certain toughness, and the weight is reduced.

[0014] Further, the hydrogel layer is made of superabsorbent polymer, and the adhesion layer is made of polyacrylic acid, so as to provide adhesion and biocompatibility.

[0015] Through the technical scheme, the superabsorbent polymer has strong water absorption, and can provide and maintain a moist environment for the wound.

[0016] The above-mentioned scheme of the utility model at least has the following beneficial effects:

[0017] The utility model discloses a hydrogel patch, which comprises an I-shaped bracket, an I-shaped head, a surface layer A and a surface layer B, wherein the I-shaped bracket and the I-shaped head are made of aluminum alloy, the thickness of the aluminum alloy is 0.5-2mm, the surface layer A is made of polyester, and the surface layer B is made of polyurethane.

[0018] The utility model discloses a hydrogel patch, which comprises an I-shaped bracket, an I-shaped head, a surface layer A and a surface layer B, wherein the I-shaped bracket and the I-shaped head are made of aluminum alloy, the thickness of the aluminum alloy is 0.5-2mm, the surface layer A is made of polyester, and the surface layer B is made of polyurethane. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1It is the whole structure schematic view of the utility model structure;

[0020] Figure 2 It is the structure of the utility model structure I-beam support part structure schematic view;

[0021] Figure 3 It is the structure of the utility model structure plan view;

[0022] Figure 4 It is the structure of the utility model structure adhesive layer part structure schematic view;

[0023] Figure 5 It is the structure of the utility model structure explosion view.

[0024] Mark explanation:

[0025] 1, surface layer A; 2, surface layer B; 3, hydrogel layer; 4, adhesive layer; 5, I-beam support; 6, I-beam head; 7, filler hole; 8, adsorption air hole. Specific implementation

[0026] Exemplary embodiments of the present application will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be accurately conveyed to those skilled in the art.

[0027] As Figures 1 to 5 shown, the embodiment of the utility model provides a kind of high water content transparent medical hydrogel film without backing layer, comprising: adhesive layer 4, adhesive layer 4 top wall is provided with hydrogel layer 3, hydrogel layer 3 top wall is provided with surface layer B 2, surface layer B 2 top wall is provided with surface layer A 1, adhesive layer 4 outer wall is opened with uniformly distributed adsorption air hole 8, further comprising:

[0028] Anti-fracture assembly, anti-fracture assembly includes the I-beam support 5 of being arranged in the inner wall of surface layer A 1 and surface layer B 2, I-beam support 5 is uniformly distributed and provided with multiple groups, I-beam support 5 outer wall is fixedly connected with I-beam head 6 symmetrically, and I-beam head 6 is fixedly connected with surface layer A 1 and surface layer B 2, and I-beam head 6 is nested between adjacent I-beam head 6, filler hole 7 is opened in the outer wall of I-beam head 6.

[0029] In the embodiment of the utility model, when pasting and using, if it needs to be bent to adapt to the human body, the surface layer A1 and the surface layer B2 will be pulled in bending, because the proportion of polyurethane and polyester used by the surface layer A1 and the surface layer B2 is different, the elasticity and toughness will also be different, so that the surface layer A1 in the outermost layer can better resist the pulling and prevent the film from breaking from the outer layer, meanwhile, the I-shaped frame support 5 and the I-shaped frame head 6 use aluminum alloy as the manufacturing material, the thickness of the aluminum alloy is kept between 0.5-2mm, so that the strength can be kept while having certain toughness, and the weight feeling is reduced, the aluminum alloy is treated by anodic oxidation, has high corrosion resistance and biocompatibility, and is used as the core structure of the hydrogel, so that the structural firmness of the hydrogel film can be strengthened, meanwhile, the I-shaped frame support is laid by mutual nesting through the I-shaped frame head 6 and is sealed by the surface layer A1 and the surface layer B2, the I-shaped frame head 6 is connected by mutual nesting, can be displaced to a certain extent through the mutual nesting between the I-shaped frame head 6, prevents the film from breaking due to the pulling force exceeding the bottom line of the bearing pulling force of the hydrogel film, and the I-shaped frame support 5 and the I-shaped frame head 6 can be deformed, so that the I-shaped frame support 5 and the I-shaped frame head 6 can be arbitrarily extruded and deformed along the surface of the human body and will not break, so that the human body surface can be better pasted and assisted to provide supporting force.

[0030] As shown in Figures 1 to 5 , the manufacturing material of the surface layer A1 and the surface layer B2 all has polyurethane, the proportion of polyurethane used by the surface layer A1 is 70-80%, and the proportion of polyurethane used by the surface layer B2 is 60-70%.

[0031] In the embodiment of the utility model, because the proportion of polyurethane is different, the toughness and elasticity of the surface layer A1 and the surface layer B2 are also different, that is, the elasticity of the surface layer A1 is greater than that of the surface layer B2, so that the anti-pulling capacity is greater than that of the surface layer B2, and the film is prevented from breaking from the surface layer A1.

[0032] As shown in Figures 1 to 5 , the manufacturing material of the surface layer A1 and the surface layer B2 all has polyester, the proportion of polyester used by the surface layer A1 is 20-30%, and the proportion of polyester used by the surface layer B2 is 30-40%.

[0033] In the embodiment of the utility model, the addition of polyester can increase the hardness of the surface layer A1 and the surface layer B2, which is greater than that of polyurethane, and can improve the hardness of the surface layer B2.

[0034] As shown in Figures 1 to 5 , the use material of the I-shaped frame support 5 and the I-shaped frame head 6 is aluminum alloy, and the thickness of the aluminum alloy is 0.5-2mm.

[0035] In the embodiment of the present application, the thickness of the aluminum alloy is kept between 0.5-2mm, so that the strength can be kept while having certain toughness, and the weight feeling is reduced, the aluminum alloy is treated by anodic oxidation, and has high corrosion resistance and biocompatibility, so as to be used as the core structure of the hydrogel.

[0036] As shown in Figures 1 to 5 The hydrogel layer 3 uses a material containing superabsorbent polymer for keeping a moist environment, and the adhesive layer 4 contains polyacrylic acid for providing adhesion and biocompatibility.

[0037] In the embodiment of the present application, the superabsorbent polymer has strong water absorption, and can provide and keep a moist environment for the wound, the polyacrylic acid has excellent water solubility and adhesion, and has certain biocompatibility.

[0038] The above is the preferred embodiment of the present application, and it should be pointed out that, for the ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A backing-free, high-water-content, transparent medical hydrogel film, characterized in that, include: An adhesive layer (4) is provided with a hydrogel layer (3) on its top wall, a surface layer B (2) is provided on the top wall of the hydrogel layer (3), a surface layer A (1) is provided on the top wall of the surface layer B (2), and uniformly distributed adsorption and air-permeable pores (8) are provided on the outer wall of the adhesive layer (4). The adhesive layer (4) also includes: The anti-fracture component includes an I-beam bracket (5) disposed on the inner wall of surface layer A (1) and surface layer B (2). Multiple sets of the I-beam bracket (5) are evenly distributed. I-beam heads (6) are symmetrically fixedly connected to the outer wall of the I-beam bracket (5). The I-beam heads (6) are fixedly connected to surface layer A (1) and surface layer B (2). Adjacent I-beam heads (6) are nested together. The outer wall of the I-beam head (6) is provided with a filling hole (7).

2. The backing-free, high-water-content, transparent medical hydrogel film according to claim 1, characterized in that, Both surface layer A (1) and surface layer B (2) are made of polyurethane. The proportion of polyurethane used in surface layer A (1) is 70-80%, and the proportion of polyurethane used in surface layer B (2) is 60-70%.

3. The backing-free, high-water-content, transparent medical hydrogel film according to claim 1, characterized in that, Both surface layer A (1) and surface layer B (2) are made of polyester. The proportion of polyester used in surface layer A (1) is 20-30%, and the proportion of polyester used in surface layer B (2) is 30-40%.

4. The backing-free, high-water-content, transparent medical hydrogel film according to claim 1, characterized in that, The I-beam bracket (5) and the I-beam head (6) are both made of aluminum alloy, and the thickness of the aluminum alloy is 0.5-2mm.

5. The backing-free, high-water-content, transparent medical hydrogel film according to claim 1, characterized in that, The hydrogel layer (3) uses a material containing a superabsorbent polymer to maintain a humid environment, and the adhesive layer (4) contains polyacrylic acid to provide adhesion and biocompatibility.

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