Microcrystal patch and patch assembly

Abstract

The utility model belongs to the technical field of skin care products, and discloses a microcrystal patch and a patch component, the microcrystal patch comprises a microneedle patch and a back adhesive film, the microneedle patch comprises a microneedle substrate and a microneedle array group arranged on the first side of the microneedle substrate, the microneedle array group comprises a plurality of microneedles, and the microneedle substrate is triangular; the back adhesive film is arranged on the second side of the microneedle substrate, the edge of the back adhesive film is provided with a bonding part, and the bonding part protrudes out of the edge of the microneedle substrate. According to the microcrystal patch provided by the utility model, the vertex angle of the triangular microneedle substrate can touch more small parts of the face, the microcrystal patch is suitable for being attached to parts with different shapes, the problem of shape revision of the microneedle substrate caused by different use parts is solved, the process cost of products with different requirements is reduced, and the microcrystal patch is high in applicability, flexible to take and use and convenient to use. And forming is convenient, and resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of skin care products, in particular to a microcrystalline patch and a patch assembly. Background Art

[0002] As a skin care product that efficiently absorbs and transforms active substances, microcrystalline products have the functions of moisturizing, anti-wrinkle, acne removal, pore shrinking, keratin plug exfoliation, whitening and freckle removal, stretch mark removal, weight management, etc. There is a great demand for their use on the face and various parts of the body.

[0003] At present, among some existing microcrystal products, taking facial care as an example, there are products designed for a specific part and products designed for multiple specific parts. For example, the Chinese patent with application number 202021120096.2 discloses a microcrystal eye patch, which is a specially customized shape for the periorbital area, shaped like a crescent moon, and can be just fit in the lower corner of the eye, but the customized shape of the microcrystal eye patch is special and can only meet the use needs of the eyes or similar shaped parts. For another example, the Chinese patent with application number 202221897423.4 discloses a microneedle mask, which is provided with a number of soluble microneedles in multiple care areas such as eyes, nose, and lips. Although it can meet the care needs of multiple parts, if one or several specific parts are to be cared for, it cannot be used flexibly, resulting in material waste. Utility Model Content

[0004] One purpose of the utility model is to provide a microcrystalline patch which is suitable for the care of parts of different shapes, has strong applicability and is flexible to use.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Provided is a microcrystalline sticker, comprising:

[0007] A microneedle patch, comprising a microneedle substrate and a microneedle array group disposed on a first side of the microneedle substrate, wherein the microneedle array group comprises a plurality of microneedles, and the shape of the microneedle substrate is set to be triangular;

[0008] The adhesive backing film is arranged on the second side of the microneedle substrate. The edge of the adhesive backing film is provided with an adhesive portion, which is protruding from the edge of the microneedle substrate and is used to adhere the microneedle patch to the skin.

[0009] Optionally, it further comprises a release paper, the release paper is attached to the adhesive portion, the release paper and the microneedle patch are located on the same side of the adhesive backing film, and a cutting line is provided on the release paper.

[0010] Optionally, at least one dividing line is provided on the microneedle substrate.

[0011] Optionally, the shape of the dividing line is set to be a straight line or a wavy line.

[0012] Optionally, at least one of the three side lines of the microneedle substrate is shaped as a convex arc or a concave arc.

[0013] Optionally, the radius of the edge of the microneedle substrate is ≥10 mm.

[0014] Optionally, the area of ​​the microneedle substrate is ≤ 20 cm 2 .

[0015] Optionally, the distance between the edge of the adhesive backing film and the edge of the microneedle substrate ranges from 1 mm to 20 mm.

[0016] Optionally, a gel film is further included, which is arranged on the side of the adhesive film facing away from the microneedle patch. The gel film includes a membrane cloth and a gel layer, and the gel layer is located on the side of the membrane cloth facing the microneedle patch.

[0017] Another object of the utility model is to provide a patch assembly, comprising:

[0018] The microcrystalline sticker described in any one of the above items is provided in plurality;

[0019] A connecting belt assembly is provided between at least two adjacent microcrystalline stickers.

[0020] Optionally, the connecting belt assembly includes a connector and at least one connecting belt connected to the connector, the connecting belt is connected to the corresponding microcrystalline paste, and the length of the connecting belt between the connector and the microcrystalline paste can be adjusted through the connector.

[0021] Beneficial effects of the utility model:

[0022] The microcrystal patch provided by the utility model has a triangular microneedle base whose top angle can reach more small parts of the face, conforms to human facial ergonomics, and can adapt to the use requirements of multiple facial care parts, making the microcrystal patch suitable for attachment to parts of different shapes, and solves the problem of shape modification of the microneedle base caused by different use parts, reducing the process cost of products with different needs, strong applicability, flexible use, and convenient molding to avoid waste of resources. In addition, the microcrystal patch can be flatly attached to the skin through the adhesive part of the backing film, has good adhesion, and is not easy to fall off.

[0023] The patch assembly provided by the utility model can provide care for different parts through the coordinated use of the microcrystalline patch and the connecting belt assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a schematic diagram of the structure of the microcrystalline sticker provided in the first embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the microcrystalline patch provided by the first embodiment of the utility model being attached to a human face;

[0026] Figure 3 This is a schematic diagram of a shape of a microneedle substrate provided in Example 1 of the utility model;

[0027] Figure 4 This is a schematic diagram of another shape of the microneedle substrate provided in the first embodiment of the present utility model;

[0028] Figure 5 is a cross-sectional view of the microcrystalline sticker provided in the first embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the microcrystalline sticker provided in the second embodiment of the present utility model;

[0030] Figure 7 is a cross-sectional view of the microcrystalline sticker provided in the second embodiment of the utility model;

[0031] Figure 8 It is a schematic diagram of the structure of the patch assembly provided in the third embodiment of the present utility model.

[0032] In the figure:

[0033] 10. Microcrystalline sticker; 20. Connecting belt assembly;

[0034] 100, microneedle patch; 110, microneedle substrate; 111, dividing line; 120, microneedle array group;

[0035] 200, adhesive film; 210, backing layer; 220, adhesive layer;

[0036] 300, release paper; 301, gap; 310, cutting line;

[0037] 400, gel film; 410, membrane cloth; 420, gel layer;

[0038] 500, connector;

[0039] 600. Connecting belt. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] Embodiment 1

[0045] Reference Figures 1 to 5 As shown, this embodiment provides a microcrystalline patch 10 , which includes a microneedle patch 100 and a backing film 200 .

[0046] Specifically, the microneedle patch 100 includes a microneedle substrate 110 and a microneedle array group 120 arranged on a first side of the microneedle substrate 110, the microneedle array group 120 includes a plurality of microneedles, and the shape of the microneedle substrate 110 is set to be triangular; the backing film 200 is arranged on the second side of the microneedle substrate 110, and the edge of the backing film 200 is provided with an adhesive portion (not shown), the adhesive portion protrudes from the edge of the microneedle substrate 110, and the adhesive portion is used to adhere the microneedle patch 100 to the skin.

[0047] In this embodiment, the top corners of the triangular microneedle base 110 can touch more small parts of the face, which conforms to human facial ergonomics and can adapt to the use requirements of multiple facial care parts, making the microcrystal patch 10 suitable for attachment to parts of different shapes, and solving the problem of shape modification of the microneedle base 110 caused by different use parts, reducing the process cost of products with different needs, strong applicability, and flexible use. In terms of process, the triangular shape is friendly to mold or knife mold manufacturing and is easy to shape. Compared with other special shapes, it can greatly reduce waste and avoid waste of resources. In addition, the microcrystal patch 10 can be smoothly attached to the skin through the adhesive part of the adhesive film 200, with good adhesion and not easy to fall off.

[0048] For example, the design of the triangular microneedle base 110 allows the microcrystal patch 10 to not only be adaptively attached to key care areas such as the forehead, around the eyes, and wings of the nose, but can also be spliced ​​arbitrarily according to one's own care needs to achieve all-round facial care.

[0049] For example, Figure 1 and Figure 2 As shown, the microneedle base 110 can be arranged in an equilateral triangle or an isosceles triangle.

[0050] For example, taking the shape of the microneedle substrate 110 as a triangle, the value range of the internal angle of the microneedle substrate 110 is 0-90°.

[0051] Exemplarily, taking the shape of the microneedle base 110 as a triangle as an example, since the human face is a 3D irregular shape, such as the areas around the eyes, nose, corners of the mouth, etc., which are mostly curved lines with a certain curvature, the shape of at least one of the three side lines of the microneedle base 110 is set to a convex arc or a concave arc. Compared with straight side lines, it is more in line with the curves of the facial features, so that the microcrystalline patch 10 has a higher coverage rate and better fit with the face, thereby achieving a better coverage effect. Preferably, in order to make the convex arc-shaped side lines and the concave arc-shaped side lines of the microneedle base 110 more compatible with the curvature of normal human areas such as around the eyes, lips, and nose wings, the radius of the side lines of the microneedle base 110 is ≥10mm, that is, the radius of the convex arc is ≥10mm, and the radius of the concave arc is ≥10mm. Preferably, the microneedle base 110 is set as follows Figure 3 and Figure 4 The shape shown, Figure 3 It is better to design that two of the three sides of the microneedle base 110 are set as concave arcs and the remaining one is set as convex arcs. Among them, the concave arc shape is more suitable for the parts around the eyes and lips, and the convex arc shape is more suitable for the parts around the nose, forehead, cheeks, etc. The combination of the two designs can maximize the benefits of the patch.

[0052] Exemplarily, the area of ​​the microneedle substrate 110 is ≤ 20 cm 2This area range is adapted to the size of a human face, and is conducive to the splicing and combination use of multiple microcrystalline stickers 10.

[0053] Exemplarily, the length of the microneedle ranges from 20 μm to 2000 μm.

[0054] Exemplarily, the microneedle spacing ranges from 100 μm to 3000 μm.

[0055] Exemplarily, the distance between the edge of the microneedle array group 120 and the edge of the microneedle substrate 110 ranges from 100 μm to 5000 μm.

[0056] Exemplarily, the shape of the tip of the microneedle includes, but is not limited to, a cone, a pyramid or a bullet shape.

[0057] Exemplarily, the microneedle patch 100 is made of a soluble high molecular polymer, including but not limited to hyaluronic acid or sodium hyaluronate. Exemplarily, the microneedle patch 100 can also be polyvinyl pyrrolidone, polyvinyl alcohol, chitosan or chondroitin sulfate, etc., and one or more of the modified derivatives of the above materials are mixed in any proportion. Exemplarily, in addition to the above-mentioned matrix material, the microneedle array group 120 and the microneedle substrate 110 can also add active ingredients with whitening, moisturizing, anti-wrinkle, soothing and other effects. In the present embodiment, the materials of the microneedle array group 120 and the microneedle substrate 110 can be the same or different, and this application is not limited.

[0058] In a possible implementation, Figure 1 and Figure 5 As shown, the adhesive film 200 includes a backing layer 210 and an adhesive layer 220, and the adhesive layer 220 is bonded to the microneedle substrate 110 to form an integrated patch structure. Exemplarily, the material of the backing layer 210 of the adhesive film 200 can be a medical polymer material, such as polyolefin, polyester, etc. Exemplarily, the adhesive layer 220 can be a pressure-sensitive adhesive, and the material of the pressure-sensitive adhesive includes but is not limited to polypropionate, polyisobutylene, silicone or rubber. In the present embodiment, the part of the adhesive film 200 in contact with the microneedle substrate 110 can be coated with adhesive glue in its entirety, or only coated around the contact edge to reduce the irritation of the pressure-sensitive adhesive to the skin.

[0059] Exemplarily, the shape of the adhesive film 200 is similar to the shape of the microneedle substrate 110. Exemplarily, the distance between the edge of the adhesive film 200 and the edge of the microneedle substrate 110 ranges from 1 mm to 20 mm, so that the adhesive layer 220 of the adhesive film 200 can stably fix the microneedle patch 100 on the skin.

[0060] In a possible implementation, Figure 1As shown, at least one dividing line 111 is provided on the microneedle substrate 110. By providing the dividing line 111, the microneedle substrate 110 can have good flexibility, that is, the microcrystalline patch 10 has a low warpage, so that the microcrystalline patch 10 can be smoothly attached to the skin through the adhesive portion of the backing film 200, with good adhesion and not easy to fall off. In this embodiment, from the process aspect, the dividing line 111 is formed by cutting the microneedle patch 100 through a die-cutting piece.

[0061] For example, a dividing line 111 is provided on the microneedle substrate 110, one end of the dividing line 111 intersects with one of the vertex angles of the microneedle substrate 110, and the other end intersects with the side line opposite to the vertex angle, that is, the microneedle patch 100 is completely divided by the dividing line 111 to form two petals. Preferably, the two petals have substantially equal areas, which is more beautiful.

[0062] Exemplarily, the shape of the dividing line 111 includes but is not limited to a straight line or a wavy line, so that the microcrystalline sticker 10 has a lower warping degree, so that the microcrystalline sticker 10 can be attached to the cheekbones, nose and other parts with strong three-dimensionality. Of course, the shape of the dividing line 111 can also be set to other curves, which is not limited in this application. Preferably, the shape of the dividing line 111 is set to a wavy line, and the concave and convex parts of the curve are easier to fit to the cheekbones, nose and other parts with strong three-dimensionality than the straight line. In this embodiment, the specific shape and curvature of the concave and convex parts of the dividing line 111 curve are not limited.

[0063] In this embodiment, refer to Figure 1 and Figure 5 As shown, the microcrystal patch 10 also includes a release paper 300, which is attached to the adhesive portion, and the release paper 300 and the microneedle patch 100 are located on the same side of the backing film 200 to protect the adhesive portion and protect the backing film 200 from being contaminated before use, so that the adhesive portion of the microcrystal patch 10 can maintain good adhesion when in use.

[0064] Exemplarily, the material of the release paper 300 includes but is not limited to polyolefin or polyester.

[0065] Exemplarily, the bonding portion is disposed around the microneedle substrate 110 .

[0066] In a feasible embodiment, in order to facilitate the peeling of the release paper 300 from the adhesive film 200, a cutting line 310 is provided on the release paper 300. The cutting line 310 extends from the inner edge of the adhesive portion to the outer edge of the adhesive portion. At least one cutting line 310 is provided on the release paper 300. Exemplarily, the shape of the cutting line 310 includes but is not limited to a straight line or a curve.

[0067] Exemplarily, the cutting line 310 is perpendicular or nearly perpendicular to the winding direction of the release paper 300. For example, the angle between the cutting line 310 and the winding direction of the release paper 300 is in the range of 80°-90°.

[0068] For example, taking the microneedle substrate 110 as a triangle and having one cutting line 310, the cutting line 310 can correspond to one of the vertices or the midpoint of the edge of the microneedle substrate 110, so that the position of the cutting line 310 does not affect its function, and the microcrystal sticker is symmetrical and beautiful as a whole.

[0069] In a feasible implementation, a gap 301 is formed between the release paper 300 and the microneedle substrate 110 to prevent the release paper 300 from scratching the microneedle substrate 110 during peeling, which is beneficial to the peeling of the release paper 300 and effectively prevents the release paper 300 from damaging the microneedle substrate 110. From a process perspective, a certain margin of error is left for the pasting of the microneedle patch 100 and the adhesive film 200.

[0070] Exemplarily, the distance between the release paper 300 and the microneedle substrate 110 ranges from 0.1 mm to 15 mm.

[0071] Exemplarily, the adhesive layer 220 may not be provided at the gap 301 to reduce the contact area between the adhesive and the skin.

[0072] Embodiment 2

[0073] Reference Figure 6 and Figure 7 As shown, the microcrystalline patch 10 provided in this embodiment further includes a gel film 400, which is disposed on the side of the adhesive film 200 facing away from the microneedle patch 100, and the gel film 400 includes a film cloth 410 and a gel layer 420, and the gel layer 420 is located on the side of the film cloth 410 facing the microneedle patch 100. In this embodiment, when the microneedles penetrate the skin, the water in the gel layer 420 can quickly replenish the skin with a large amount of water through the micron-level channels generated by the microneedles in the skin, and the microneedle patch 100 is made of a soluble high molecular polymer, which can be quickly dissolved in water, effectively improving the dissolution rate of the microneedles and shortening the use time.

[0074] Specifically, the adhesive film 200 in this embodiment may not completely cover the microneedle patch 100, and the area size is not limited, as long as it plays a fixing effect on the skin. In order to reduce the contact area between the adhesive film 200 and the skin, the adhesive film 200 may only partially cover the microneedle substrate 110 and partially protrude from the microneedle substrate 110, for example Figure 6 The size ratio and position of the backing film 200 relative to the microneedle substrate 110 are shown in FIG.

[0075] Specifically, the adhesive film 200 in the microcrystalline sticker 10 provided in this embodiment is different from that in the first embodiment, and the backing layer 210 thereof is made of non-woven fabric or other materials with good water permeability.

[0076] Exemplarily, the membrane cloth 410 may be provided as a non-woven fabric, and the hydrogel layer 420 is coated on the membrane cloth 410 .

[0077] Exemplarily, the material of the hydrogel layer 420 may be a polymer hydrogel material.

[0078] Exemplarily, the shape of the gel film 400 is similar to that of the microneedle substrate 110, the area of ​​the gel film 400 is larger than that of the microneedle substrate 110, and the distance between the edge of the gel and the edge of the microneedle substrate 110 is in the range of 1 mm to 20 mm. The gel film 400 within this range can completely cover the microneedle patch 100, so that the gel film 400 has a better fixing effect and can ensure that the microneedle patch 100 is fully dissolved.

[0079] In a feasible implementation, the microneedle patch 100, the adhesive film 200 and the gel film 400 can be of split design. When in use, first, hold the adhesive film 200 to attach the microneedle patch 100 to the care area; then, evenly cover the microneedle patch 100 with a layer of gel film 400; finally, lightly press the gel film 400 with your fingertips to make it completely close to the skin.

[0080] The other structures of the microcrystalline paste 10 provided in this embodiment are the same as those in the first embodiment and will not be described in detail here.

[0081] Embodiment 3

[0082] Reference Figure 8 As shown, this embodiment provides a patch assembly, the patch assembly includes a microcrystalline patch 10 and a connecting tape assembly 20, wherein the microcrystalline patch 10 is provided with a plurality of microcrystalline patches, and the connecting tape assembly 20 is provided between at least two adjacent microcrystalline patches 10. The specific structure of the microcrystalline patch 10 in this embodiment is the same as that of the microcrystalline patch 10 in the first and second embodiments, and this embodiment will not be described in detail. In this embodiment, by using the microcrystalline patch 10 and the connecting tape assembly 20 in combination, care can be performed on different parts.

[0083] For example, taking the microcrystalline patch 10 in the first embodiment as an example, the connecting tape assembly 20 can be connected to the surface of the backing film 200 facing away from the microneedle patch 100 by means of an adhesive.

[0084] For example, taking the microcrystalline patch 10 in the second embodiment as an example, the connecting belt assembly 20 can be connected to the surface of the gel film 400 facing away from the microneedle patch 100 by means of adhesive. When in use, the gel film 400 is first covered on the microneedle patch 100, and then the microcrystalline patch 10 is attached to the skin.

[0085] For example, according to the area range of different parts of the human body such as the forehead, cheeks, and neck, two or more microcrystalline patches 10 are combined into one for use through the connecting belt assembly 20. For different care parts, the combination method and coverage area of ​​the microcrystalline patch 10 can be roughly determined, which can simplify the patch operation and effectively prevent the user from repeatedly trying to adjust the sticking angle and orientation due to unfamiliarity with the operation, thereby effectively ensuring that the microcrystalline patch 10 has a good use effect.

[0086] Specifically, the connecting belt assembly 20 includes a connector 500 and at least one connecting belt 600 connected to the connector 500. The connecting belt 600 is connected to the corresponding microcrystalline sticker 10. The length of the connecting belt 600 between the connector 500 and the microcrystalline sticker 10 can be adjusted through the connector 500, thereby adjusting the spacing between the relative microcrystalline stickers 10. In this embodiment, the connector 500 and the connecting belt 600 are used in conjunction with each other to adjust the spacing between the stickers according to the different face shapes and sizes of different users, so as to achieve the best use effect.

[0087] Exemplarily, the connecting tape assembly 20 includes a connecting tape 600 , that is, both ends of the connecting tape 600 are respectively connected to corresponding microcrystalline stickers 10 .

[0088] Exemplarily, the connecting tape assembly 20 includes two connecting tapes 600 , the first ends of the connecting tapes 600 are respectively connected to the corresponding microcrystalline stickers 10 , and the second ends of the connecting tapes 600 are connected to the connector 500 .

[0089] Exemplarily, the connector 500 includes but is not limited to an elastic buckle, such as a pig nose spring buckle. Exemplarily, the material of the connector 500 can be silicone, metal, or the like.

[0090] Exemplarily, the material of the connecting belt 600 includes but is not limited to plastic or cloth materials such as nylon and polyester.

[0091] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A microcrystalline sticker, characterized in that: include: A microneedle patch (100) comprises a microneedle substrate (110) and a microneedle array group (120) arranged on a first side of the microneedle substrate (110), wherein the microneedle array group (120) comprises a plurality of microneedles, and the shape of the microneedle substrate (110) is set to be a triangle; The adhesive backing film (200) is arranged on the second side of the microneedle substrate (110), and an adhesive portion is provided on the edge of the adhesive backing film (200). The adhesive portion is arranged to protrude from the edge of the microneedle substrate (110), and the adhesive portion is used to adhere the microneedle patch (100) to the skin.

2. The microcrystalline sticker according to claim 1, characterized in that: It also includes a release paper (300), which is attached to the adhesive portion, and the release paper (300) and the microneedle patch (100) are located on the same side of the adhesive film (200), and a cutting line (310) is provided on the release paper (300).

3. The microcrystalline sticker according to claim 1, characterized in that: At least one dividing line (111) is arranged on the microneedle substrate (110).

4. The microcrystalline sticker according to claim 3, characterized in that: The shape of the dividing line (111) is set to be a straight line or a wavy line.

5. The microcrystalline sticker according to claim 1, characterized in that: The shape of at least one of the three side lines of the microneedle substrate (110) is set to be a convex arc shape or a concave arc shape.

6. The microcrystalline sticker according to claim 5, characterized in that: The radius of the edge of the microneedle substrate (110) is ≥10 mm.

7. The microcrystalline sticker according to claim 1, characterized in that: The area of ​​the microneedle substrate (110) is ≤ 20 cm 2 .

8. The microcrystalline sticker according to claim 1, characterized in that: The distance between the edge of the backing film (200) and the edge of the microneedle substrate (110) ranges from 1 mm to 20 mm.

9. The microcrystalline sticker according to any one of claims 1 to 8, characterized in that: The invention also comprises a gel film (400), wherein the gel film (400) is arranged on the side of the adhesive film (200) facing away from the microneedle patch (100), and the gel film (400) comprises a membrane cloth (410) and a gel layer (420), wherein the gel layer (420) is located on the side of the membrane cloth (410) facing the microneedle patch (100).

10. A patch component, characterized in that: include: The microcrystalline sticker (10) according to any one of claims 1 to 9, comprising a plurality of; A connecting belt assembly (20) is provided between at least two adjacent microcrystalline stickers (10).

11. The patch assembly according to claim 10, characterized in that: The connecting belt assembly (20) comprises a connector (500) and at least one connecting belt (600) connected to the connector (500); the connecting belt (600) is connected to the corresponding microcrystalline patch (10); and the length of the connecting belt (600) between the connector (500) and the microcrystalline patch (10) can be adjusted through the connector (500).

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